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Posted to commits@hbase.apache.org by gi...@apache.org on 2020/10/12 20:21:30 UTC
[hbase-site] branch asf-site updated: Published site at
c28220522d71edfde3424d0413cd19a5bdff6e60.
This is an automated email from the ASF dual-hosted git repository.
git-site-role pushed a commit to branch asf-site
in repository https://gitbox.apache.org/repos/asf/hbase-site.git
The following commit(s) were added to refs/heads/asf-site by this push:
new 284ecf7 Published site at c28220522d71edfde3424d0413cd19a5bdff6e60.
284ecf7 is described below
commit 284ecf79e94ff7f018966c0513389cf2215269fc
Author: jenkins <bu...@apache.org>
AuthorDate: Mon Oct 12 20:21:08 2020 +0000
Published site at c28220522d71edfde3424d0413cd19a5bdff6e60.
---
acid-semantics.html | 2 +-
apache_hbase_reference_guide.pdf | 4 +-
.../hadoop/hbase/mapreduce/WALInputFormat.html | 2 +-
book.html | 2 +-
bulk-loads.html | 2 +-
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144 files changed, 21835 insertions(+), 21862 deletions(-)
diff --git a/acid-semantics.html b/acid-semantics.html
index d224296..99369dd 100644
--- a/acid-semantics.html
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@@ -467,7 +467,7 @@
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<p>Copyright ©2007–2020
<a href="https://www.apache.org/">The Apache Software Foundation</a>.
-All rights reserved. <li id="publishDate" class="pull-right">Last Published: 2020-10-11</li>
+All rights reserved. <li id="publishDate" class="pull-right">Last Published: 2020-10-12</li>
</p>
</div>
<p id="poweredBy" class="pull-right"><a href="http://maven.apache.org/" title="Built by Maven" class="poweredBy"><img class="builtBy" alt="Built by Maven" src="./images/logos/maven-feather.png" /></a>
diff --git a/apache_hbase_reference_guide.pdf b/apache_hbase_reference_guide.pdf
index 9fb017f..53d2410 100644
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<span class="sourceLineNo">338</span> long endTime) {<a name="line.338"></a>
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diff --git a/book.html b/book.html
index afdf235..276722c 100644
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<div id="footer">
<div id="footer-text">
Version 3.0.0-SNAPSHOT<br>
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<p>Copyright ©2007–2020
<a href="https://www.apache.org/">The Apache Software Foundation</a>.
-All rights reserved. <li id="publishDate" class="pull-right">Last Published: 2020-10-11</li>
+All rights reserved. <li id="publishDate" class="pull-right">Last Published: 2020-10-12</li>
</p>
</div>
<p id="poweredBy" class="pull-right"><a href="http://maven.apache.org/" title="Built by Maven" class="poweredBy"><img class="builtBy" alt="Built by Maven" src="./images/logos/maven-feather.png" /></a>
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index d3a5065..3bde8dd 100644
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<h2><a name="Files"></a>Files</h2>
<table border="0" class="table table-striped">
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<td>Inner assignments should be avoided.</td>
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<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
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<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
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<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
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<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
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<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
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<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
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<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
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<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
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<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>729</td></tr>
+<td>730</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'case' child has incorrect indentation level 6, expected level should be 8.</td>
-<td>730</td></tr>
+<td>731</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>732</td></tr>
+<td>733</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>733</td></tr>
+<td>734</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>sizes</td>
<td>LineLength</td>
<td>Line is longer than 100 characters (found 102).</td>
-<td>733</td></tr>
+<td>734</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>734</td></tr>
+<td>735</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>735</td></tr>
+<td>736</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>736</td></tr>
+<td>737</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'case' child has incorrect indentation level 6, expected level should be 8.</td>
-<td>737</td></tr>
+<td>738</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>739</td></tr>
+<td>740</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>740</td></tr>
+<td>741</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>sizes</td>
<td>LineLength</td>
<td>Line is longer than 100 characters (found 113).</td>
-<td>740</td></tr>
+<td>741</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>741</td></tr>
+<td>742</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>sizes</td>
<td>LineLength</td>
<td>Line is longer than 100 characters (found 109).</td>
-<td>741</td></tr>
+<td>742</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>742</td></tr>
+<td>743</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>743</td></tr>
+<td>744</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>744</td></tr>
+<td>745</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'case' child has incorrect indentation level 6, expected level should be 8.</td>
-<td>745</td></tr>
+<td>746</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
<td>'block' child has incorrect indentation level 8, expected level should be 10.</td>
-<td>746</td></tr>
+<td>747</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>sizes</td>
<td>LineLength</td>
<td>Line is longer than 100 characters (found 103).</td>
-<td>757</td></tr>
+<td>758</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>sizes</td>
<td>LineLength</td>
<td>Line is longer than 100 characters (found 108).</td>
-<td>869</td></tr>
+<td>870</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>sizes</td>
<td>LineLength</td>
<td>Line is longer than 100 characters (found 108).</td>
-<td>884</td></tr>
+<td>885</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
-<td>1051</td></tr>
+<td>1052</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
-<td>1052</td></tr>
+<td>1053</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
-<td>1054</td></tr>
+<td>1055</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
-<td>1055</td></tr>
+<td>1056</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
-<td>1087</td></tr>
+<td>1088</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
-<td>1093</td></tr>
+<td>1094</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
-<td>1116</td></tr>
+<td>1117</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
-<td>1118</td></tr>
+<td>1119</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
-<td>1206</td></tr>
+<td>1205</td></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>sizes</td>
<td>LineLength</td>
<td>Line is longer than 100 characters (found 105).</td>
-<td>1417</td></tr></table></div>
+<td>1422</td></tr></table></div>
<div class="section">
<h3 id="org.apache.hadoop.hbase.master.balancer.ClusterLoadState.java">org/apache/hadoop/hbase/master/balancer/ClusterLoadState.java</h3>
<table border="0" class="table table-striped">
@@ -41227,13 +41227,13 @@
<td>indentation</td>
<td>Indentation</td>
<td>'segregateRegionsAndAssignRegionsWithFavoredNodes' has incorrect indentation level 2, expected level should be 4.</td>
-<td>202</td></tr>
+<td>205</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>coding</td>
<td>InnerAssignment</td>
<td>Inner assignments should be avoided.</td>
-<td>244</td></tr></table></div>
+<td>247</td></tr></table></div>
<div class="section">
<h3 id="org.apache.hadoop.hbase.master.balancer.LoadBalancerFactory.java">org/apache/hadoop/hbase/master/balancer/LoadBalancerFactory.java</h3>
<table border="0" class="table table-striped">
@@ -75289,10 +75289,10 @@
<th>Line</th></tr>
<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
-<td>imports</td>
-<td>ImportOrder</td>
-<td>Wrong order for 'org.apache.commons.lang3.StringUtils.isNumeric' import.</td>
-<td>35</td></tr>
+<td>javadoc</td>
+<td>JavadocTagContinuationIndentation</td>
+<td>Line continuation have incorrect indentation level, expected level should be 2.</td>
+<td>183</td></tr>
<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
@@ -75316,23 +75316,17 @@
<td>javadoc</td>
<td>JavadocTagContinuationIndentation</td>
<td>Line continuation have incorrect indentation level, expected level should be 2.</td>
-<td>187</td></tr>
-<tr class="a">
-<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
-<td>javadoc</td>
-<td>JavadocTagContinuationIndentation</td>
-<td>Line continuation have incorrect indentation level, expected level should be 2.</td>
-<td>223</td></tr></table></div>
+<td>222</td></tr></table></div>
<div class="section">
<h3 id="org.apache.hadoop.hbase.wal.WALFactory.java">org/apache/hadoop/hbase/wal/WALFactory.java</h3>
<table border="0" class="table table-striped">
-<tr class="b">
+<tr class="a">
<th>Severity</th>
<th>Category</th>
<th>Rule</th>
<th>Message</th>
<th>Line</th></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
@@ -75341,13 +75335,13 @@
<div class="section">
<h3 id="org.apache.hadoop.hbase.wal.WALKey.java">org/apache/hadoop/hbase/wal/WALKey.java</h3>
<table border="0" class="table table-striped">
-<tr class="b">
+<tr class="a">
<th>Severity</th>
<th>Category</th>
<th>Rule</th>
<th>Message</th>
<th>Line</th></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>imports</td>
<td>ImportOrder</td>
@@ -75356,49 +75350,49 @@
<div class="section">
<h3 id="org.apache.hadoop.hbase.wal.WALKeyImpl.java">org/apache/hadoop/hbase/wal/WALKeyImpl.java</h3>
<table border="0" class="table table-striped">
-<tr class="b">
+<tr class="a">
<th>Severity</th>
<th>Category</th>
<th>Rule</th>
<th>Message</th>
<th>Line</th></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>291</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>292</td></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>309</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>332</td></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>333</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>334</td></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
@@ -75407,79 +75401,79 @@
<div class="section">
<h3 id="org.apache.hadoop.hbase.wal.WALPerformanceEvaluation.java">org/apache/hadoop/hbase/wal/WALPerformanceEvaluation.java</h3>
<table border="0" class="table table-striped">
-<tr class="b">
+<tr class="a">
<th>Severity</th>
<th>Category</th>
<th>Rule</th>
<th>Message</th>
<th>Line</th></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>sizes</td>
<td>LineLength</td>
<td>Line is longer than 100 characters (found 111).</td>
<td>173</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>sizes</td>
<td>MethodLength</td>
<td>Method length is 193 lines (max allowed is 150).</td>
<td>202</td></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
<td>355</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
<td>358</td></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
<td>379</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>411</td></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>413</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'if' construct must use '{}'s.</td>
<td>439</td></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>blocks</td>
<td>NeedBraces</td>
<td>'for' construct must use '{}'s.</td>
<td>569</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>577</td></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>579</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
@@ -75488,37 +75482,37 @@
<div class="section">
<h3 id="org.apache.hadoop.hbase.wal.WALSplitter.java">org/apache/hadoop/hbase/wal/WALSplitter.java</h3>
<table border="0" class="table table-striped">
-<tr class="a">
+<tr class="b">
<th>Severity</th>
<th>Category</th>
<th>Rule</th>
<th>Message</th>
<th>Line</th></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>imports</td>
<td>ImportOrder</td>
<td>Wrong order for 'edu.umd.cs.findbugs.annotations.Nullable' import.</td>
<td>32</td></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>imports</td>
<td>UnusedImports</td>
<td>Unused import - edu.umd.cs.findbugs.annotations.Nullable.</td>
<td>32</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>imports</td>
<td>ImportOrder</td>
<td>Wrong order for 'javax.validation.constraints.Null' import.</td>
<td>65</td></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>imports</td>
<td>UnusedImports</td>
<td>Unused import - javax.validation.constraints.Null.</td>
<td>65</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>sizes</td>
<td>LineLength</td>
@@ -75527,13 +75521,13 @@
<div class="section">
<h3 id="org.apache.hadoop.hbase.zookeeper.ReadOnlyZKClient.java">org/apache/hadoop/hbase/zookeeper/ReadOnlyZKClient.java</h3>
<table border="0" class="table table-striped">
-<tr class="a">
+<tr class="b">
<th>Severity</th>
<th>Category</th>
<th>Rule</th>
<th>Message</th>
<th>Line</th></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>indentation</td>
<td>Indentation</td>
@@ -75542,25 +75536,25 @@
<div class="section">
<h3 id="org.apache.hadoop.hbase.zookeeper.ZKConfig.java">org/apache/hadoop/hbase/zookeeper/ZKConfig.java</h3>
<table border="0" class="table table-striped">
-<tr class="a">
+<tr class="b">
<th>Severity</th>
<th>Category</th>
<th>Rule</th>
<th>Message</th>
<th>Line</th></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>119</td></tr>
-<tr class="a">
+<tr class="b">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
<td>At-clause should have a non-empty description.</td>
<td>212</td></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>javadoc</td>
<td>NonEmptyAtclauseDescription</td>
@@ -75569,13 +75563,13 @@
<div class="section">
<h3 id="org.apache.hadoop.hbase.zookeeper.ZKMetadata.java">org/apache/hadoop/hbase/zookeeper/ZKMetadata.java</h3>
<table border="0" class="table table-striped">
-<tr class="a">
+<tr class="b">
<th>Severity</th>
<th>Category</th>
<th>Rule</th>
<th>Message</th>
<th>Line</th></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
<td>design</td>
<td>FinalClass</td>
@@ -75584,13 +75578,13 @@
<div class="section">
<h3 id="org.apache.hadoop.hbase.zookeeper.ZKWatcher.java">org/apache/hadoop/hbase/zookeeper/ZKWatcher.java</h3>
<table border="0" class="table table-striped">
-<tr class="a">
+<tr class="b">
<th>Severity</th>
<th>Category</th>
<th>Rule</th>
<th>Message</th>
<th>Line</th></tr>
-<tr class="b">
+<tr class="a">
<td><img src="images/icon_error_sml.gif" alt="" /> Error</td>
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-<span class="sourceLineNo">293</span> List<RegionInfo>> assignmentMapForFavoredNodes, RegionInfo region, ServerName primaryHost,<a name="line.293"></a>
-<span class="sourceLineNo">294</span> ServerName secondaryHost, ServerName tertiaryHost) {<a name="line.294"></a>
-<span class="sourceLineNo">295</span> if (primaryHost != null) {<a name="line.295"></a>
-<span class="sourceLineNo">296</span> addRegionToMap(assignmentMapForFavoredNodes, region, primaryHost);<a name="line.296"></a>
-<span class="sourceLineNo">297</span> } else if (secondaryHost != null && tertiaryHost != null) {<a name="line.297"></a>
-<span class="sourceLineNo">298</span> // assign the region to the one with a lower load<a name="line.298"></a>
-<span class="sourceLineNo">299</span> // (both have the desired hdfs blocks)<a name="line.299"></a>
-<span class="sourceLineNo">300</span> ServerName s;<a name="line.300"></a>
-<span class="sourceLineNo">301</span> ServerMetrics tertiaryLoad = super.services.getServerManager().getLoad(tertiaryHost);<a name="line.301"></a>
-<span class="sourceLineNo">302</span> ServerMetrics secondaryLoad = super.services.getServerManager().getLoad(secondaryHost);<a name="line.302"></a>
-<span class="sourceLineNo">303</span> if (secondaryLoad.getRegionMetrics().size() < tertiaryLoad.getRegionMetrics().size()) {<a name="line.303"></a>
-<span class="sourceLineNo">304</span> s = secondaryHost;<a name="line.304"></a>
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-<span class="sourceLineNo">309</span> } else if (secondaryHost != null) {<a name="line.309"></a>
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-<span class="sourceLineNo">311</span> } else if (tertiaryHost != null) {<a name="line.311"></a>
-<span class="sourceLineNo">312</span> addRegionToMap(assignmentMapForFavoredNodes, region, tertiaryHost);<a name="line.312"></a>
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-<span class="sourceLineNo">317</span> RegionInfo region, ServerName host) {<a name="line.317"></a>
-<span class="sourceLineNo">318</span> List<RegionInfo> regionsOnServer = null;<a name="line.318"></a>
-<span class="sourceLineNo">319</span> if ((regionsOnServer = assignmentMapForFavoredNodes.get(host)) == null) {<a name="line.319"></a>
-<span class="sourceLineNo">320</span> regionsOnServer = new ArrayList<>();<a name="line.320"></a>
-<span class="sourceLineNo">321</span> assignmentMapForFavoredNodes.put(host, regionsOnServer);<a name="line.321"></a>
-<span class="sourceLineNo">322</span> }<a name="line.322"></a>
-<span class="sourceLineNo">323</span> regionsOnServer.add(region);<a name="line.323"></a>
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-<span class="sourceLineNo">332</span> Map<ServerName, List<RegionInfo>> assignmentMap,<a name="line.332"></a>
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-<span class="sourceLineNo">334</span> Map<RegionInfo, ServerName> primaryRSMap = new HashMap<>();<a name="line.334"></a>
-<span class="sourceLineNo">335</span> // figure the primary RSs<a name="line.335"></a>
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-<span class="sourceLineNo">337</span> assignSecondaryAndTertiaryNodesForRegion(assignmentHelper, regions, primaryRSMap);<a name="line.337"></a>
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-<span class="sourceLineNo">342</span> List<RegionInfo> regions, Map<RegionInfo, ServerName> primaryRSMap) throws IOException {<a name="line.342"></a>
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-<span class="sourceLineNo">344</span> Map<RegionInfo, ServerName[]> secondaryAndTertiaryRSMap =<a name="line.344"></a>
-<span class="sourceLineNo">345</span> assignmentHelper.placeSecondaryAndTertiaryRS(primaryRSMap);<a name="line.345"></a>
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-<span class="sourceLineNo">347</span> Map<RegionInfo, List<ServerName>> regionFNMap = Maps.newHashMap();<a name="line.347"></a>
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-<span class="sourceLineNo">350</span> // Store the favored nodes without startCode for the ServerName objects<a name="line.350"></a>
-<span class="sourceLineNo">351</span> // We don't care about the startcode; but only the hostname really<a name="line.351"></a>
-<span class="sourceLineNo">352</span> List<ServerName> favoredNodesForRegion = new ArrayList<>(3);<a name="line.352"></a>
-<span class="sourceLineNo">353</span> ServerName sn = primaryRSMap.get(region);<a name="line.353"></a>
-<span class="sourceLineNo">354</span> favoredNodesForRegion.add(ServerName.valueOf(sn.getHostname(), sn.getPort(),<a name="line.354"></a>
-<span class="sourceLineNo">355</span> ServerName.NON_STARTCODE));<a name="line.355"></a>
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-<span class="sourceLineNo">357</span> if (secondaryAndTertiaryNodes != null) {<a name="line.357"></a>
-<span class="sourceLineNo">358</span> favoredNodesForRegion.add(ServerName.valueOf(secondaryAndTertiaryNodes[0].getHostname(),<a name="line.358"></a>
-<span class="sourceLineNo">359</span> secondaryAndTertiaryNodes[0].getPort(), ServerName.NON_STARTCODE));<a name="line.359"></a>
-<span class="sourceLineNo">360</span> favoredNodesForRegion.add(ServerName.valueOf(secondaryAndTertiaryNodes[1].getHostname(),<a name="line.360"></a>
-<span class="sourceLineNo">361</span> secondaryAndTertiaryNodes[1].getPort(), ServerName.NON_STARTCODE));<a name="line.361"></a>
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-<span class="sourceLineNo">367</span><a name="line.367"></a>
-<span class="sourceLineNo">368</span> /*<a name="line.368"></a>
-<span class="sourceLineNo">369</span> * Generate Favored Nodes for daughters during region split.<a name="line.369"></a>
-<span class="sourceLineNo">370</span> *<a name="line.370"></a>
-<span class="sourceLineNo">371</span> * If the parent does not have FN, regenerates them for the daughters.<a name="line.371"></a>
-<span class="sourceLineNo">372</span> *<a name="line.372"></a>
-<span class="sourceLineNo">373</span> * If the parent has FN, inherit two FN from parent for each daughter and generate the remaining.<a name="line.373"></a>
-<span class="sourceLineNo">374</span> * The primary FN for both the daughters should be the same as parent. Inherit the secondary<a name="line.374"></a>
-<span class="sourceLineNo">375</span> * FN from the parent but keep it different for each daughter. Choose the remaining FN<a name="line.375"></a>
-<span class="sourceLineNo">376</span> * randomly. This would give us better distribution over a period of time after enough splits.<a name="line.376"></a>
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-<span class="sourceLineNo">378</span> @Override<a name="line.378"></a>
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-<span class="sourceLineNo">381</span><a name="line.381"></a>
-<span class="sourceLineNo">382</span> Map<RegionInfo, List<ServerName>> result = new HashMap<>();<a name="line.382"></a>
-<span class="sourceLineNo">383</span> FavoredNodeAssignmentHelper helper = new FavoredNodeAssignmentHelper(servers, rackManager);<a name="line.383"></a>
-<span class="sourceLineNo">384</span> helper.initialize();<a name="line.384"></a>
-<span class="sourceLineNo">385</span><a name="line.385"></a>
-<span class="sourceLineNo">386</span> List<ServerName> parentFavoredNodes = getFavoredNodes(parent);<a name="line.386"></a>
-<span class="sourceLineNo">387</span> if (parentFavoredNodes == null) {<a name="line.387"></a>
-<span class="sourceLineNo">388</span> LOG.debug("Unable to find favored nodes for parent, " + parent<a name="line.388"></a>
-<span class="sourceLineNo">389</span> + " generating new favored nodes for daughter");<a name="line.389"></a>
-<span class="sourceLineNo">390</span> result.put(regionA, helper.generateFavoredNodes(regionA));<a name="line.390"></a>
-<span class="sourceLineNo">391</span> result.put(regionB, helper.generateFavoredNodes(regionB));<a name="line.391"></a>
-<span class="sourceLineNo">392</span><a name="line.392"></a>
-<span class="sourceLineNo">393</span> } else {<a name="line.393"></a>
-<span class="sourceLineNo">394</span><a name="line.394"></a>
-<span class="sourceLineNo">395</span> // Lets get the primary and secondary from parent for regionA<a name="line.395"></a>
-<span class="sourceLineNo">396</span> Set<ServerName> regionAFN =<a name="line.396"></a>
-<span class="sourceLineNo">397</span> getInheritedFNForDaughter(helper, parentFavoredNodes, PRIMARY, SECONDARY);<a name="line.397"></a>
-<span class="sourceLineNo">398</span> result.put(regionA, Lists.newArrayList(regionAFN));<a name="line.398"></a>
-<span class="sourceLineNo">399</span><a name="line.399"></a>
-<span class="sourceLineNo">400</span> // Lets get the primary and tertiary from parent for regionB<a name="line.400"></a>
-<span class="sourceLineNo">401</span> Set<ServerName> regionBFN =<a name="line.401"></a>
-<span class="sourceLineNo">402</span> getInheritedFNForDaughter(helper, parentFavoredNodes, PRIMARY, TERTIARY);<a name="line.402"></a>
-<span class="sourceLineNo">403</span> result.put(regionB, Lists.newArrayList(regionBFN));<a name="line.403"></a>
-<span class="sourceLineNo">404</span> }<a name="line.404"></a>
-<span class="sourceLineNo">405</span><a name="line.405"></a>
-<span class="sourceLineNo">406</span> fnm.updateFavoredNodes(result);<a name="line.406"></a>
-<span class="sourceLineNo">407</span> }<a name="line.407"></a>
+<span class="sourceLineNo">025</span>import edu.umd.cs.findbugs.annotations.NonNull;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.io.IOException;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.util.ArrayList;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.util.HashMap;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.List;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import java.util.Map;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.util.Set;<a name="line.31"></a>
+<span class="sourceLineNo">032</span><a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.conf.Configuration;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.ServerMetrics;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.ServerName;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.TableName;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.favored.FavoredNodesPlan.Position;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.master.RackManager;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.master.RegionPlan;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.master.ServerManager;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.master.SnapshotOfRegionAssignmentFromMeta;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.slf4j.Logger;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.slf4j.LoggerFactory;<a name="line.49"></a>
+<span class="sourceLineNo">050</span><a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hbase.thirdparty.com.google.common.collect.Maps;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<a name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span>/**<a name="line.55"></a>
+<span class="sourceLineNo">056</span> * An implementation of the {@link org.apache.hadoop.hbase.master.LoadBalancer} that<a name="line.56"></a>
+<span class="sourceLineNo">057</span> * assigns favored nodes for each region. There is a Primary RegionServer that hosts<a name="line.57"></a>
+<span class="sourceLineNo">058</span> * the region, and then there is Secondary and Tertiary RegionServers. Currently, the<a name="line.58"></a>
+<span class="sourceLineNo">059</span> * favored nodes information is used in creating HDFS files - the Primary RegionServer<a name="line.59"></a>
+<span class="sourceLineNo">060</span> * passes the primary, secondary, tertiary node addresses as hints to the<a name="line.60"></a>
+<span class="sourceLineNo">061</span> * DistributedFileSystem API for creating files on the filesystem. These nodes are<a name="line.61"></a>
+<span class="sourceLineNo">062</span> * treated as hints by the HDFS to place the blocks of the file. This alleviates the<a name="line.62"></a>
+<span class="sourceLineNo">063</span> * problem to do with reading from remote nodes (since we can make the Secondary<a name="line.63"></a>
+<span class="sourceLineNo">064</span> * RegionServer as the new Primary RegionServer) after a region is recovered. This<a name="line.64"></a>
+<span class="sourceLineNo">065</span> * should help provide consistent read latencies for the regions even when their<a name="line.65"></a>
+<span class="sourceLineNo">066</span> * primary region servers die.<a name="line.66"></a>
+<span class="sourceLineNo">067</span> *<a name="line.67"></a>
+<span class="sourceLineNo">068</span> */<a name="line.68"></a>
+<span class="sourceLineNo">069</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)<a name="line.69"></a>
+<span class="sourceLineNo">070</span>public class FavoredNodeLoadBalancer extends BaseLoadBalancer implements FavoredNodesPromoter {<a name="line.70"></a>
+<span class="sourceLineNo">071</span> private static final Logger LOG = LoggerFactory.getLogger(FavoredNodeLoadBalancer.class);<a name="line.71"></a>
+<span class="sourceLineNo">072</span><a name="line.72"></a>
+<span class="sourceLineNo">073</span> private RackManager rackManager;<a name="line.73"></a>
+<span class="sourceLineNo">074</span> private Configuration conf;<a name="line.74"></a>
+<span class="sourceLineNo">075</span> private FavoredNodesManager fnm;<a name="line.75"></a>
+<span class="sourceLineNo">076</span><a name="line.76"></a>
+<span class="sourceLineNo">077</span> @Override<a name="line.77"></a>
+<span class="sourceLineNo">078</span> public void setConf(Configuration conf) {<a name="line.78"></a>
+<span class="sourceLineNo">079</span> this.conf = conf;<a name="line.79"></a>
+<span class="sourceLineNo">080</span> }<a name="line.80"></a>
+<span class="sourceLineNo">081</span><a name="line.81"></a>
+<span class="sourceLineNo">082</span> @Override<a name="line.82"></a>
+<span class="sourceLineNo">083</span> public synchronized void initialize() throws HBaseIOException {<a name="line.83"></a>
+<span class="sourceLineNo">084</span> super.initialize();<a name="line.84"></a>
+<span class="sourceLineNo">085</span> super.setConf(conf);<a name="line.85"></a>
+<span class="sourceLineNo">086</span> this.fnm = services.getFavoredNodesManager();<a name="line.86"></a>
+<span class="sourceLineNo">087</span> this.rackManager = new RackManager(conf);<a name="line.87"></a>
+<span class="sourceLineNo">088</span> super.setConf(conf);<a name="line.88"></a>
+<span class="sourceLineNo">089</span> }<a name="line.89"></a>
+<span class="sourceLineNo">090</span><a name="line.90"></a>
+<span class="sourceLineNo">091</span> @Override<a name="line.91"></a>
+<span class="sourceLineNo">092</span> public List<RegionPlan> balanceTable(TableName tableName,<a name="line.92"></a>
+<span class="sourceLineNo">093</span> Map<ServerName, List<RegionInfo>> loadOfOneTable) {<a name="line.93"></a>
+<span class="sourceLineNo">094</span> // TODO. Look at is whether Stochastic loadbalancer can be integrated with this<a name="line.94"></a>
+<span class="sourceLineNo">095</span> List<RegionPlan> plans = new ArrayList<>();<a name="line.95"></a>
+<span class="sourceLineNo">096</span> // perform a scan of the meta to get the latest updates (if any)<a name="line.96"></a>
+<span class="sourceLineNo">097</span> SnapshotOfRegionAssignmentFromMeta snaphotOfRegionAssignment =<a name="line.97"></a>
+<span class="sourceLineNo">098</span> new SnapshotOfRegionAssignmentFromMeta(super.services.getConnection());<a name="line.98"></a>
+<span class="sourceLineNo">099</span> try {<a name="line.99"></a>
+<span class="sourceLineNo">100</span> snaphotOfRegionAssignment.initialize();<a name="line.100"></a>
+<span class="sourceLineNo">101</span> } catch (IOException ie) {<a name="line.101"></a>
+<span class="sourceLineNo">102</span> LOG.warn("Not running balancer since exception was thrown " + ie);<a name="line.102"></a>
+<span class="sourceLineNo">103</span> return plans;<a name="line.103"></a>
+<span class="sourceLineNo">104</span> }<a name="line.104"></a>
+<span class="sourceLineNo">105</span> // This is not used? Findbugs says so: Map<ServerName, ServerName><a name="line.105"></a>
+<span class="sourceLineNo">106</span> // serverNameToServerNameWithoutCode = new HashMap<>();<a name="line.106"></a>
+<span class="sourceLineNo">107</span> Map<ServerName, ServerName> serverNameWithoutCodeToServerName = new HashMap<>();<a name="line.107"></a>
+<span class="sourceLineNo">108</span> ServerManager serverMgr = super.services.getServerManager();<a name="line.108"></a>
+<span class="sourceLineNo">109</span> for (ServerName sn : serverMgr.getOnlineServersList()) {<a name="line.109"></a>
+<span class="sourceLineNo">110</span> ServerName s = ServerName.valueOf(sn.getHostname(), sn.getPort(), ServerName.NON_STARTCODE);<a name="line.110"></a>
+<span class="sourceLineNo">111</span> // FindBugs complains about useless store! serverNameToServerNameWithoutCode.put(sn, s);<a name="line.111"></a>
+<span class="sourceLineNo">112</span> serverNameWithoutCodeToServerName.put(s, sn);<a name="line.112"></a>
+<span class="sourceLineNo">113</span> }<a name="line.113"></a>
+<span class="sourceLineNo">114</span> for (Map.Entry<ServerName, List<RegionInfo>> entry : loadOfOneTable.entrySet()) {<a name="line.114"></a>
+<span class="sourceLineNo">115</span> ServerName currentServer = entry.getKey();<a name="line.115"></a>
+<span class="sourceLineNo">116</span> // get a server without the startcode for the currentServer<a name="line.116"></a>
+<span class="sourceLineNo">117</span> ServerName currentServerWithoutStartCode = ServerName.valueOf(currentServer.getHostname(),<a name="line.117"></a>
+<span class="sourceLineNo">118</span> currentServer.getPort(), ServerName.NON_STARTCODE);<a name="line.118"></a>
+<span class="sourceLineNo">119</span> List<RegionInfo> list = entry.getValue();<a name="line.119"></a>
+<span class="sourceLineNo">120</span> for (RegionInfo region : list) {<a name="line.120"></a>
+<span class="sourceLineNo">121</span> if (!FavoredNodesManager.isFavoredNodeApplicable(region)) {<a name="line.121"></a>
+<span class="sourceLineNo">122</span> continue;<a name="line.122"></a>
+<span class="sourceLineNo">123</span> }<a name="line.123"></a>
+<span class="sourceLineNo">124</span> List<ServerName> favoredNodes = fnm.getFavoredNodes(region);<a name="line.124"></a>
+<span class="sourceLineNo">125</span> if (favoredNodes == null || favoredNodes.get(0).equals(currentServerWithoutStartCode)) {<a name="line.125"></a>
+<span class="sourceLineNo">126</span> continue; // either favorednodes does not exist or we are already on the primary node<a name="line.126"></a>
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+<span class="sourceLineNo">128</span> ServerName destination = null;<a name="line.128"></a>
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+<span class="sourceLineNo">358</span> ServerName.NON_STARTCODE));<a name="line.358"></a>
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+<span class="sourceLineNo">364</span> secondaryAndTertiaryNodes[1].getPort(), ServerName.NON_STARTCODE));<a name="line.364"></a>
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+<span class="sourceLineNo">385</span> Map<RegionInfo, List<ServerName>> result = new HashMap<>();<a name="line.385"></a>
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+<span class="sourceLineNo">389</span> List<ServerName> parentFavoredNodes = getFavoredNodes(parent);<a name="line.389"></a>
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+<span class="sourceLineNo">391</span> LOG.debug("Unable to find favored nodes for parent, " + parent<a name="line.391"></a>
+<span class="sourceLineNo">392</span> + " generating new favored nodes for daughter");<a name="line.392"></a>
+<span class="sourceLineNo">393</span> result.put(regionA, helper.generateFavoredNodes(regionA));<a name="line.393"></a>
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+<span class="sourceLineNo">402</span><a name="line.402"></a>
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+<span class="sourceLineNo">404</span> Set<ServerName> regionBFN =<a name="line.404"></a>
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+<span class="sourceLineNo">424</span><a name="line.424"></a>
+<span class="sourceLineNo">425</span> while (daughterFN.size() < FavoredNodeAssignmentHelper.FAVORED_NODES_NUM) {<a name="line.425"></a>
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+<span class="sourceLineNo">428</span> }<a name="line.428"></a>
+<span class="sourceLineNo">429</span> return daughterFN;<a name="line.429"></a>
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+<span class="sourceLineNo">431</span><a name="line.431"></a>
+<span class="sourceLineNo">432</span> /*<a name="line.432"></a>
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+<span class="sourceLineNo">435</span> */<a name="line.435"></a>
+<span class="sourceLineNo">436</span> @Override<a name="line.436"></a>
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+<span class="sourceLineNo">439</span> Map<RegionInfo, List<ServerName>> regionFNMap = Maps.newHashMap();<a name="line.439"></a>
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+<span class="sourceLineNo">441</span> fnm.updateFavoredNodes(regionFNMap);<a name="line.441"></a>
+<span class="sourceLineNo">442</span> }<a name="line.442"></a>
+<span class="sourceLineNo">443</span><a name="line.443"></a>
+<span class="sourceLineNo">444</span>}<a name="line.444"></a>
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index 89d67be..4d7e8d0 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALInputFormat.WALKeyRecordReader.html
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<span class="sourceLineNo">336</span><a name="line.336"></a>
<span class="sourceLineNo">337</span> static void addFile(List<FileStatus> result, LocatedFileStatus lfs, long startTime,<a name="line.337"></a>
<span class="sourceLineNo">338</span> long endTime) {<a name="line.338"></a>
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALInputFormat.WALRecordReader.html b/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALInputFormat.WALRecordReader.html
index 89d67be..4d7e8d0 100644
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALInputFormat.WALSplit.html b/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALInputFormat.WALSplit.html
index 89d67be..4d7e8d0 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALInputFormat.WALSplit.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALInputFormat.html b/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALInputFormat.html
index 89d67be..4d7e8d0 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALInputFormat.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/LoadBalancer.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/LoadBalancer.html
index 7048ebc..dda846b 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/LoadBalancer.html
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<span class="sourceLineNo">020</span><a name="line.20"></a>
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<span class="sourceLineNo">024</span>import java.util.Map;<a name="line.24"></a>
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.DeadServerMetricRegionChore.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.DeadServerMetricRegionChore.html
index 95efc71..ff5f46d 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.DeadServerMetricRegionChore.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.DeadServerMetricRegionChore.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html
index 95efc71..ff5f46d 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionChore.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionStat.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionStat.html
index 95efc71..ff5f46d 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionInTransitionStat.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionMetaLoadingVisitor.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionMetaLoadingVisitor.html
index 95efc71..ff5f46d 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.RegionMetaLoadingVisitor.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.html
index 95efc71..ff5f46d 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/assignment/AssignmentManager.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.Type.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.Type.html
index 01007bc..883c40a 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.Type.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.Cluster.Action.Type.html
@@ -26,1264 +26,1264 @@
<span class="sourceLineNo">018</span> */<a name="line.18"></a>
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-<span class="sourceLineNo">126</span> if (useRegionFinder) {<a name="line.126"></a>
-<span class="sourceLineNo">127</span> regionFinder = new RegionLocationFinder();<a name="line.127"></a>
-<span class="sourceLineNo">128</span> }<a name="line.128"></a>
-<span class="sourceLineNo">129</span> }<a name="line.129"></a>
-<span class="sourceLineNo">130</span><a name="line.130"></a>
-<span class="sourceLineNo">131</span> /**<a name="line.131"></a>
-<span class="sourceLineNo">132</span> * An efficient array based implementation similar to ClusterState for keeping<a name="line.132"></a>
-<span class="sourceLineNo">133</span> * the status of the cluster in terms of region assignment and distribution.<a name="line.133"></a>
-<span class="sourceLineNo">134</span> * LoadBalancers, such as StochasticLoadBalancer uses this Cluster object because of<a name="line.134"></a>
-<span class="sourceLineNo">135</span> * hundreds of thousands of hashmap manipulations are very costly, which is why this<a name="line.135"></a>
-<span class="sourceLineNo">136</span> * class uses mostly indexes and arrays.<a name="line.136"></a>
-<span class="sourceLineNo">137</span> *<a name="line.137"></a>
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-<span class="sourceLineNo">139</span> * topology in terms of server names, hostnames and racks.<a name="line.139"></a>
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-<span class="sourceLineNo">145</span> boolean multiServersPerHost = false; // whether or not any host has more than one server<a name="line.145"></a>
-<span class="sourceLineNo">146</span><a name="line.146"></a>
-<span class="sourceLineNo">147</span> ArrayList<String> tables;<a name="line.147"></a>
-<span class="sourceLineNo">148</span> RegionInfo[] regions;<a name="line.148"></a>
-<span class="sourceLineNo">149</span> Deque<BalancerRegionLoad>[] regionLoads;<a name="line.149"></a>
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-<span class="sourceLineNo">151</span><a name="line.151"></a>
-<span class="sourceLineNo">152</span> int[][] regionLocations; //regionIndex -> list of serverIndex sorted by locality<a name="line.152"></a>
-<span class="sourceLineNo">153</span><a name="line.153"></a>
-<span class="sourceLineNo">154</span> int[] serverIndexToHostIndex; //serverIndex -> host index<a name="line.154"></a>
-<span class="sourceLineNo">155</span> int[] serverIndexToRackIndex; //serverIndex -> rack index<a name="line.155"></a>
-<span class="sourceLineNo">156</span><a name="line.156"></a>
-<span class="sourceLineNo">157</span> int[][] regionsPerServer; //serverIndex -> region list<a name="line.157"></a>
-<span class="sourceLineNo">158</span> int[] serverIndexToRegionsOffset; //serverIndex -> offset of region list<a name="line.158"></a>
-<span class="sourceLineNo">159</span> int[][] regionsPerHost; //hostIndex -> list of regions<a name="line.159"></a>
-<span class="sourceLineNo">160</span> int[][] regionsPerRack; //rackIndex -> region list<a name="line.160"></a>
-<span class="sourceLineNo">161</span> int[][] primariesOfRegionsPerServer; //serverIndex -> sorted list of regions by primary region index<a name="line.161"></a>
-<span class="sourceLineNo">162</span> int[][] primariesOfRegionsPerHost; //hostIndex -> sorted list of regions by primary region index<a name="line.162"></a>
-<span class="sourceLineNo">163</span> int[][] primariesOfRegionsPerRack; //rackIndex -> sorted list of regions by primary region index<a name="line.163"></a>
-<span class="sourceLineNo">164</span><a name="line.164"></a>
-<span class="sourceLineNo">165</span> int[][] serversPerHost; //hostIndex -> list of server indexes<a name="line.165"></a>
-<span class="sourceLineNo">166</span> int[][] serversPerRack; //rackIndex -> list of server indexes<a name="line.166"></a>
-<span class="sourceLineNo">167</span> int[] regionIndexToServerIndex; //regionIndex -> serverIndex<a name="line.167"></a>
-<span class="sourceLineNo">168</span> int[] initialRegionIndexToServerIndex; //regionIndex -> serverIndex (initial cluster state)<a name="line.168"></a>
-<span class="sourceLineNo">169</span> int[] regionIndexToTableIndex; //regionIndex -> tableIndex<a name="line.169"></a>
-<span class="sourceLineNo">170</span> int[][] numRegionsPerServerPerTable; //serverIndex -> tableIndex -> # regions<a name="line.170"></a>
-<span class="sourceLineNo">171</span> int[] numMaxRegionsPerTable; //tableIndex -> max number of regions in a single RS<a name="line.171"></a>
-<span class="sourceLineNo">172</span> int[] regionIndexToPrimaryIndex; //regionIndex -> regionIndex of the primary<a name="line.172"></a>
-<span class="sourceLineNo">173</span> boolean hasRegionReplicas = false; //whether there is regions with replicas<a name="line.173"></a>
-<span class="sourceLineNo">174</span><a name="line.174"></a>
-<span class="sourceLineNo">175</span> Integer[] serverIndicesSortedByRegionCount;<a name="line.175"></a>
-<span class="sourceLineNo">176</span> Integer[] serverIndicesSortedByLocality;<a name="line.176"></a>
-<span class="sourceLineNo">177</span><a name="line.177"></a>
-<span class="sourceLineNo">178</span> Map<Address, Integer> serversToIndex;<a name="line.178"></a>
-<span class="sourceLineNo">179</span> Map<String, Integer> hostsToIndex;<a name="line.179"></a>
-<span class="sourceLineNo">180</span> Map<String, Integer> racksToIndex;<a name="line.180"></a>
-<span class="sourceLineNo">181</span> Map<String, Integer> tablesToIndex;<a name="line.181"></a>
-<span class="sourceLineNo">182</span> Map<RegionInfo, Integer> regionsToIndex;<a name="line.182"></a>
-<span class="sourceLineNo">183</span> float[] localityPerServer;<a name="line.183"></a>
-<span class="sourceLineNo">184</span><a name="line.184"></a>
-<span class="sourceLineNo">185</span> int numServers;<a name="line.185"></a>
-<span class="sourceLineNo">186</span> int numHosts;<a name="line.186"></a>
-<span class="sourceLineNo">187</span> int numRacks;<a name="line.187"></a>
-<span class="sourceLineNo">188</span> int numTables;<a name="line.188"></a>
-<span class="sourceLineNo">189</span> int numRegions;<a name="line.189"></a>
-<span class="sourceLineNo">190</span><a name="line.190"></a>
-<span class="sourceLineNo">191</span> int numMovedRegions = 0; //num moved regions from the initial configuration<a name="line.191"></a>
-<span class="sourceLineNo">192</span> Map<ServerName, List<RegionInfo>> clusterState;<a name="line.192"></a>
-<span class="sourceLineNo">193</span><a name="line.193"></a>
-<span class="sourceLineNo">194</span> protected final RackManager rackManager;<a name="line.194"></a>
-<span class="sourceLineNo">195</span> // Maps region -> rackIndex -> locality of region on rack<a name="line.195"></a>
-<span class="sourceLineNo">196</span> private float[][] rackLocalities;<a name="line.196"></a>
-<span class="sourceLineNo">197</span> // Maps localityType -> region -> [server|rack]Index with highest locality<a name="line.197"></a>
-<span class="sourceLineNo">198</span> private int[][] regionsToMostLocalEntities;<a name="line.198"></a>
-<span class="sourceLineNo">199</span><a name="line.199"></a>
-<span class="sourceLineNo">200</span> protected Cluster(<a name="line.200"></a>
-<span class="sourceLineNo">201</span> Map<ServerName, List<RegionInfo>> clusterState,<a name="line.201"></a>
-<span class="sourceLineNo">202</span> Map<String, Deque<BalancerRegionLoad>> loads,<a name="line.202"></a>
-<span class="sourceLineNo">203</span> RegionLocationFinder regionFinder,<a name="line.203"></a>
-<span class="sourceLineNo">204</span> RackManager rackManager) {<a name="line.204"></a>
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-<span class="sourceLineNo">206</span> }<a name="line.206"></a>
-<span class="sourceLineNo">207</span><a name="line.207"></a>
-<span class="sourceLineNo">208</span> @SuppressWarnings("unchecked")<a name="line.208"></a>
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-<span class="sourceLineNo">210</span> Collection<RegionInfo> unassignedRegions,<a name="line.210"></a>
-<span class="sourceLineNo">211</span> Map<ServerName, List<RegionInfo>> clusterState,<a name="line.211"></a>
-<span class="sourceLineNo">212</span> Map<String, Deque<BalancerRegionLoad>> loads,<a name="line.212"></a>
-<span class="sourceLineNo">213</span> RegionLocationFinder regionFinder,<a name="line.213"></a>
-<span class="sourceLineNo">214</span> RackManager rackManager) {<a name="line.214"></a>
-<span class="sourceLineNo">215</span><a name="line.215"></a>
-<span class="sourceLineNo">216</span> if (unassignedRegions == null) {<a name="line.216"></a>
-<span class="sourceLineNo">217</span> unassignedRegions = EMPTY_REGION_LIST;<a name="line.217"></a>
-<span class="sourceLineNo">218</span> }<a name="line.218"></a>
-<span class="sourceLineNo">219</span><a name="line.219"></a>
-<span class="sourceLineNo">220</span> serversToIndex = new HashMap<>();<a name="line.220"></a>
-<span class="sourceLineNo">221</span> hostsToIndex = new HashMap<>();<a name="line.221"></a>
-<span class="sourceLineNo">222</span> racksToIndex = new HashMap<>();<a name="line.222"></a>
-<span class="sourceLineNo">223</span> tablesToIndex = new HashMap<>();<a name="line.223"></a>
-<span class="sourceLineNo">224</span><a name="line.224"></a>
-<span class="sourceLineNo">225</span> //TODO: We should get the list of tables from master<a name="line.225"></a>
-<span class="sourceLineNo">226</span> tables = new ArrayList<>();<a name="line.226"></a>
-<span class="sourceLineNo">227</span> this.rackManager = rackManager != null ? rackManager : new DefaultRackManager();<a name="line.227"></a>
-<span class="sourceLineNo">228</span><a name="line.228"></a>
-<span class="sourceLineNo">229</span> numRegions = 0;<a name="line.229"></a>
-<span class="sourceLineNo">230</span><a name="line.230"></a>
-<span class="sourceLineNo">231</span> List<List<Integer>> serversPerHostList = new ArrayList<>();<a name="line.231"></a>
-<span class="sourceLineNo">232</span> List<List<Integer>> serversPerRackList = new ArrayList<>();<a name="line.232"></a>
-<span class="sourceLineNo">233</span> this.clusterState = clusterState;<a name="line.233"></a>
-<span class="sourceLineNo">234</span> this.regionFinder = regionFinder;<a name="line.234"></a>
-<span class="sourceLineNo">235</span><a name="line.235"></a>
-<span class="sourceLineNo">236</span> // Use servername and port as there can be dead servers in this list. We want everything with<a name="line.236"></a>
-<span class="sourceLineNo">237</span> // a matching hostname and port to have the same index.<a name="line.237"></a>
-<span class="sourceLineNo">238</span> for (ServerName sn : clusterState.keySet()) {<a name="line.238"></a>
-<span class="sourceLineNo">239</span> if (sn == null) {<a name="line.239"></a>
-<span class="sourceLineNo">240</span> LOG.warn("TODO: Enable TRACE on BaseLoadBalancer. Empty servername); " +<a name="line.240"></a>
-<span class="sourceLineNo">241</span> "skipping; unassigned regions?");<a name="line.241"></a>
-<span class="sourceLineNo">242</span> if (LOG.isTraceEnabled()) {<a name="line.242"></a>
-<span class="sourceLineNo">243</span> LOG.trace("EMPTY SERVERNAME " + clusterState.toString());<a name="line.243"></a>
-<span class="sourceLineNo">244</span> }<a name="line.244"></a>
-<span class="sourceLineNo">245</span> continue;<a name="line.245"></a>
-<span class="sourceLineNo">246</span> }<a name="line.246"></a>
-<span class="sourceLineNo">247</span> if (serversToIndex.get(sn.getAddress()) == null) {<a name="line.247"></a>
-<span class="sourceLineNo">248</span> serversToIndex.put(sn.getAddress(), numServers++);<a name="line.248"></a>
-<span class="sourceLineNo">249</span> }<a name="line.249"></a>
-<span class="sourceLineNo">250</span> if (!hostsToIndex.containsKey(sn.getHostname())) {<a name="line.250"></a>
-<span class="sourceLineNo">251</span> hostsToIndex.put(sn.getHostname(), numHosts++);<a name="line.251"></a>
-<span class="sourceLineNo">252</span> serversPerHostList.add(new ArrayList<>(1));<a name="line.252"></a>
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-<span class="sourceLineNo">255</span> int serverIndex = serversToIndex.get(sn.getAddress());<a name="line.255"></a>
-<span class="sourceLineNo">256</span> int hostIndex = hostsToIndex.get(sn.getHostname());<a name="line.256"></a>
-<span class="sourceLineNo">257</span> serversPerHostList.get(hostIndex).add(serverIndex);<a name="line.257"></a>
-<span class="sourceLineNo">258</span><a name="line.258"></a>
-<span class="sourceLineNo">259</span> String rack = this.rackManager.getRack(sn);<a name="line.259"></a>
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-<span class="sourceLineNo">261</span> racksToIndex.put(rack, numRacks++);<a name="line.261"></a>
-<span class="sourceLineNo">262</span> serversPerRackList.add(new ArrayList<>());<a name="line.262"></a>
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-<span class="sourceLineNo">264</span> int rackIndex = racksToIndex.get(rack);<a name="line.264"></a>
-<span class="sourceLineNo">265</span> serversPerRackList.get(rackIndex).add(serverIndex);<a name="line.265"></a>
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-<span class="sourceLineNo">268</span> // Count how many regions there are.<a name="line.268"></a>
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-<span class="sourceLineNo">270</span> numRegions += entry.getValue().size();<a name="line.270"></a>
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-<span class="sourceLineNo">272</span> numRegions += unassignedRegions.size();<a name="line.272"></a>
-<span class="sourceLineNo">273</span><a name="line.273"></a>
-<span class="sourceLineNo">274</span> regionsToIndex = new HashMap<>(numRegions);<a name="line.274"></a>
-<span class="sourceLineNo">275</span> servers = new ServerName[numServers];<a name="line.275"></a>
-<span class="sourceLineNo">276</span> serversPerHost = new int[numHosts][];<a name="line.276"></a>
-<span class="sourceLineNo">277</span> serversPerRack = new int[numRacks][];<a name="line.277"></a>
-<span class="sourceLineNo">278</span> regions = new RegionInfo[numRegions];<a name="line.278"></a>
-<span class="sourceLineNo">279</span> regionIndexToServerIndex = new int[numRegions];<a name="line.279"></a>
-<span class="sourceLineNo">280</span> initialRegionIndexToServerIndex = new int[numRegions];<a name="line.280"></a>
-<span class="sourceLineNo">281</span> regionIndexToTableIndex = new int[numRegions];<a name="line.281"></a>
-<span class="sourceLineNo">282</span> regionIndexToPrimaryIndex = new int[numRegions];<a name="line.282"></a>
-<span class="sourceLineNo">283</span> regionLoads = new Deque[numRegions];<a name="line.283"></a>
-<span class="sourceLineNo">284</span><a name="line.284"></a>
-<span class="sourceLineNo">285</span> regionLocations = new int[numRegions][];<a name="line.285"></a>
-<span class="sourceLineNo">286</span> serverIndicesSortedByRegionCount = new Integer[numServers];<a name="line.286"></a>
-<span class="sourceLineNo">287</span> serverIndicesSortedByLocality = new Integer[numServers];<a name="line.287"></a>
-<span class="sourceLineNo">288</span> localityPerServer = new float[numServers];<a name="line.288"></a>
-<span class="sourceLineNo">289</span><a name="line.289"></a>
-<span class="sourceLineNo">290</span> serverIndexToHostIndex = new int[numServers];<a name="line.290"></a>
-<span class="sourceLineNo">291</span> serverIndexToRackIndex = new int[numServers];<a name="line.291"></a>
-<span class="sourceLineNo">292</span> regionsPerServer = new int[numServers][];<a name="line.292"></a>
-<span class="sourceLineNo">293</span> serverIndexToRegionsOffset = new int[numServers];<a name="line.293"></a>
-<span class="sourceLineNo">294</span> regionsPerHost = new int[numHosts][];<a name="line.294"></a>
-<span class="sourceLineNo">295</span> regionsPerRack = new int[numRacks][];<a name="line.295"></a>
-<span class="sourceLineNo">296</span> primariesOfRegionsPerServer = new int[numServers][];<a name="line.296"></a>
-<span class="sourceLineNo">297</span> primariesOfRegionsPerHost = new int[numHosts][];<a name="line.297"></a>
-<span class="sourceLineNo">298</span> primariesOfRegionsPerRack = new int[numRacks][];<a name="line.298"></a>
-<span class="sourceLineNo">299</span><a name="line.299"></a>
-<span class="sourceLineNo">300</span> int tableIndex = 0, regionIndex = 0, regionPerServerIndex = 0;<a name="line.300"></a>
-<span class="sourceLineNo">301</span><a name="line.301"></a>
-<span class="sourceLineNo">302</span> for (Entry<ServerName, List<RegionInfo>> entry : clusterState.entrySet()) {<a name="line.302"></a>
-<span class="sourceLineNo">303</span> if (entry.getKey() == null) {<a name="line.303"></a>
-<span class="sourceLineNo">304</span> LOG.warn("SERVERNAME IS NULL, skipping " + entry.getValue());<a name="line.304"></a>
-<span class="sourceLineNo">305</span> continue;<a name="line.305"></a>
-<span class="sourceLineNo">306</span> }<a name="line.306"></a>
-<span class="sourceLineNo">307</span> int serverIndex = serversToIndex.get(entry.getKey().getAddress());<a name="line.307"></a>
-<span class="sourceLineNo">308</span><a name="line.308"></a>
-<span class="sourceLineNo">309</span> // keep the servername if this is the first server name for this hostname<a name="line.309"></a>
-<span class="sourceLineNo">310</span> // or this servername has the newest startcode.<a name="line.310"></a>
-<span class="sourceLineNo">311</span> if (servers[serverIndex] == null ||<a name="line.311"></a>
-<span class="sourceLineNo">312</span> servers[serverIndex].getStartcode() < entry.getKey().getStartcode()) {<a name="line.312"></a>
-<span class="sourceLineNo">313</span> servers[serverIndex] = entry.getKey();<a name="line.313"></a>
-<span class="sourceLineNo">314</span> }<a name="line.314"></a>
-<span class="sourceLineNo">315</span><a name="line.315"></a>
-<span class="sourceLineNo">316</span> if (regionsPerServer[serverIndex] != null) {<a name="line.316"></a>
-<span class="sourceLineNo">317</span> // there is another server with the same hostAndPort in ClusterState.<a name="line.317"></a>
-<span class="sourceLineNo">318</span> // allocate the array for the total size<a name="line.318"></a>
-<span class="sourceLineNo">319</span> regionsPerServer[serverIndex] = new int[entry.getValue().size() + regionsPerServer[serverIndex].length];<a name="line.319"></a>
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-<span class="sourceLineNo">321</span> regionsPerServer[serverIndex] = new int[entry.getValue().size()];<a name="line.321"></a>
-<span class="sourceLineNo">322</span> }<a name="line.322"></a>
-<span class="sourceLineNo">323</span> primariesOfRegionsPerServer[serverIndex] = new int[regionsPerServer[serverIndex].length];<a name="line.323"></a>
-<span class="sourceLineNo">324</span> serverIndicesSortedByRegionCount[serverIndex] = serverIndex;<a name="line.324"></a>
-<span class="sourceLineNo">325</span> serverIndicesSortedByLocality[serverIndex] = serverIndex;<a name="line.325"></a>
-<span class="sourceLineNo">326</span> }<a name="line.326"></a>
-<span class="sourceLineNo">327</span><a name="line.327"></a>
-<span class="sourceLineNo">328</span> hosts = new String[numHosts];<a name="line.328"></a>
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-<span class="sourceLineNo">330</span> hosts[entry.getValue()] = entry.getKey();<a name="line.330"></a>
-<span class="sourceLineNo">331</span> }<a name="line.331"></a>
-<span class="sourceLineNo">332</span> racks = new String[numRacks];<a name="line.332"></a>
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-<span class="sourceLineNo">334</span> racks[entry.getValue()] = entry.getKey();<a name="line.334"></a>
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-<span class="sourceLineNo">336</span><a name="line.336"></a>
-<span class="sourceLineNo">337</span> for (Entry<ServerName, List<RegionInfo>> entry : clusterState.entrySet()) {<a name="line.337"></a>
-<span class="sourceLineNo">338</span> int serverIndex = serversToIndex.get(entry.getKey().getAddress());<a name="line.338"></a>
-<span class="sourceLineNo">339</span> regionPerServerIndex = serverIndexToRegionsOffset[serverIndex];<a name="line.339"></a>
-<span class="sourceLineNo">340</span><a name="line.340"></a>
-<span class="sourceLineNo">341</span> int hostIndex = hostsToIndex.get(entry.getKey().getHostname());<a name="line.341"></a>
-<span class="sourceLineNo">342</span> serverIndexToHostIndex[serverIndex] = hostIndex;<a name="line.342"></a>
-<span class="sourceLineNo">343</span><a name="line.343"></a>
-<span class="sourceLineNo">344</span> int rackIndex = racksToIndex.get(this.rackManager.getRack(entry.getKey()));<a name="line.344"></a>
-<span class="sourceLineNo">345</span> serverIndexToRackIndex[serverIndex] = rackIndex;<a name="line.345"></a>
-<span class="sourceLineNo">346</span><a name="line.346"></a>
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+<span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.util.ArrayList;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.Arrays;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.Collection;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.Collections;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.util.Comparator;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.util.Deque;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.HashMap;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import java.util.Iterator;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.util.List;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import java.util.Map;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import java.util.Map.Entry;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import java.util.NavigableMap;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import java.util.Random;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import java.util.Set;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import java.util.TreeMap;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import java.util.function.Predicate;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import java.util.stream.Collectors;<a name="line.39"></a>
+<span class="sourceLineNo">040</span><a name="line.40"></a>
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+<span class="sourceLineNo">042</span>import org.apache.hadoop.conf.Configuration;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.ClusterMetrics;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.44"></a>
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+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.ServerName;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.TableName;<a name="line.50"></a>
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+<span class="sourceLineNo">068</span>import org.slf4j.LoggerFactory;<a name="line.68"></a>
+<span class="sourceLineNo">069</span><a name="line.69"></a>
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+<span class="sourceLineNo">095</span><a name="line.95"></a>
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+<span class="sourceLineNo">111</span> protected BaseLoadBalancer() {<a name="line.111"></a>
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+<span class="sourceLineNo">115</span><a name="line.115"></a>
+<span class="sourceLineNo">116</span> /**<a name="line.116"></a>
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+<span class="sourceLineNo">118</span> * which will be used instead of creating a new one<a name="line.118"></a>
+<span class="sourceLineNo">119</span> */<a name="line.119"></a>
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+<span class="sourceLineNo">123</span> }<a name="line.123"></a>
+<span class="sourceLineNo">124</span><a name="line.124"></a>
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+<span class="sourceLineNo">127</span> if (useRegionFinder) {<a name="line.127"></a>
+<span class="sourceLineNo">128</span> regionFinder = new RegionLocationFinder();<a name="line.128"></a>
+<span class="sourceLineNo">129</span> }<a name="line.129"></a>
+<span class="sourceLineNo">130</span> }<a name="line.130"></a>
+<span class="sourceLineNo">131</span><a name="line.131"></a>
+<span class="sourceLineNo">132</span> /**<a name="line.132"></a>
+<span class="sourceLineNo">133</span> * An efficient array based implementation similar to ClusterState for keeping<a name="line.133"></a>
+<span class="sourceLineNo">134</span> * the status of the cluster in terms of region assignment and distribution.<a name="line.134"></a>
+<span class="sourceLineNo">135</span> * LoadBalancers, such as StochasticLoadBalancer uses this Cluster object because of<a name="line.135"></a>
+<span class="sourceLineNo">136</span> * hundreds of thousands of hashmap manipulations are very costly, which is why this<a name="line.136"></a>
+<span class="sourceLineNo">137</span> * class uses mostly indexes and arrays.<a name="line.137"></a>
+<span class="sourceLineNo">138</span> *<a name="line.138"></a>
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+<span class="sourceLineNo">140</span> * topology in terms of server names, hostnames and racks.<a name="line.140"></a>
+<span class="sourceLineNo">141</span> */<a name="line.141"></a>
+<span class="sourceLineNo">142</span> protected static class Cluster {<a name="line.142"></a>
+<span class="sourceLineNo">143</span> ServerName[] servers;<a name="line.143"></a>
+<span class="sourceLineNo">144</span> String[] hosts; // ServerName uniquely identifies a region server. multiple RS can run on the same host<a name="line.144"></a>
+<span class="sourceLineNo">145</span> String[] racks;<a name="line.145"></a>
+<span class="sourceLineNo">146</span> boolean multiServersPerHost = false; // whether or not any host has more than one server<a name="line.146"></a>
+<span class="sourceLineNo">147</span><a name="line.147"></a>
+<span class="sourceLineNo">148</span> ArrayList<String> tables;<a name="line.148"></a>
+<span class="sourceLineNo">149</span> RegionInfo[] regions;<a name="line.149"></a>
+<span class="sourceLineNo">150</span> Deque<BalancerRegionLoad>[] regionLoads;<a name="line.150"></a>
+<span class="sourceLineNo">151</span> private RegionLocationFinder regionFinder;<a name="line.151"></a>
+<span class="sourceLineNo">152</span><a name="line.152"></a>
+<span class="sourceLineNo">153</span> int[][] regionLocations; //regionIndex -> list of serverIndex sorted by locality<a name="line.153"></a>
+<span class="sourceLineNo">154</span><a name="line.154"></a>
+<span class="sourceLineNo">155</span> int[] serverIndexToHostIndex; //serverIndex -> host index<a name="line.155"></a>
+<span class="sourceLineNo">156</span> int[] serverIndexToRackIndex; //serverIndex -> rack index<a name="line.156"></a>
+<span class="sourceLineNo">157</span><a name="line.157"></a>
+<span class="sourceLineNo">158</span> int[][] regionsPerServer; //serverIndex -> region list<a name="line.158"></a>
+<span class="sourceLineNo">159</span> int[] serverIndexToRegionsOffset; //serverIndex -> offset of region list<a name="line.159"></a>
+<span class="sourceLineNo">160</span> int[][] regionsPerHost; //hostIndex -> list of regions<a name="line.160"></a>
+<span class="sourceLineNo">161</span> int[][] regionsPerRack; //rackIndex -> region list<a name="line.161"></a>
+<span class="sourceLineNo">162</span> int[][] primariesOfRegionsPerServer; //serverIndex -> sorted list of regions by primary region index<a name="line.162"></a>
+<span class="sourceLineNo">163</span> int[][] primariesOfRegionsPerHost; //hostIndex -> sorted list of regions by primary region index<a name="line.163"></a>
+<span class="sourceLineNo">164</span> int[][] primariesOfRegionsPerRack; //rackIndex -> sorted list of regions by primary region index<a name="line.164"></a>
+<span class="sourceLineNo">165</span><a name="line.165"></a>
+<span class="sourceLineNo">166</span> int[][] serversPerHost; //hostIndex -> list of server indexes<a name="line.166"></a>
+<span class="sourceLineNo">167</span> int[][] serversPerRack; //rackIndex -> list of server indexes<a name="line.167"></a>
+<span class="sourceLineNo">168</span> int[] regionIndexToServerIndex; //regionIndex -> serverIndex<a name="line.168"></a>
+<span class="sourceLineNo">169</span> int[] initialRegionIndexToServerIndex; //regionIndex -> serverIndex (initial cluster state)<a name="line.169"></a>
+<span class="sourceLineNo">170</span> int[] regionIndexToTableIndex; //regionIndex -> tableIndex<a name="line.170"></a>
+<span class="sourceLineNo">171</span> int[][] numRegionsPerServerPerTable; //serverIndex -> tableIndex -> # regions<a name="line.171"></a>
+<span class="sourceLineNo">172</span> int[] numMaxRegionsPerTable; //tableIndex -> max number of regions in a single RS<a name="line.172"></a>
+<span class="sourceLineNo">173</span> int[] regionIndexToPrimaryIndex; //regionIndex -> regionIndex of the primary<a name="line.173"></a>
+<span class="sourceLineNo">174</span> boolean hasRegionReplicas = false; //whether there is regions with replicas<a name="line.174"></a>
+<span class="sourceLineNo">175</span><a name="line.175"></a>
+<span class="sourceLineNo">176</span> Integer[] serverIndicesSortedByRegionCount;<a name="line.176"></a>
+<span class="sourceLineNo">177</span> Integer[] serverIndicesSortedByLocality;<a name="line.177"></a>
+<span class="sourceLineNo">178</span><a name="line.178"></a>
+<span class="sourceLineNo">179</span> Map<Address, Integer> serversToIndex;<a name="line.179"></a>
+<span class="sourceLineNo">180</span> Map<String, Integer> hostsToIndex;<a name="line.180"></a>
+<span class="sourceLineNo">181</span> Map<String, Integer> racksToIndex;<a name="line.181"></a>
+<span class="sourceLineNo">182</span> Map<String, Integer> tablesToIndex;<a name="line.182"></a>
+<span class="sourceLineNo">183</span> Map<RegionInfo, Integer> regionsToIndex;<a name="line.183"></a>
+<span class="sourceLineNo">184</span> float[] localityPerServer;<a name="line.184"></a>
+<span class="sourceLineNo">185</span><a name="line.185"></a>
+<span class="sourceLineNo">186</span> int numServers;<a name="line.186"></a>
+<span class="sourceLineNo">187</span> int numHosts;<a name="line.187"></a>
+<span class="sourceLineNo">188</span> int numRacks;<a name="line.188"></a>
+<span class="sourceLineNo">189</span> int numTables;<a name="line.189"></a>
+<span class="sourceLineNo">190</span> int numRegions;<a name="line.190"></a>
+<span class="sourceLineNo">191</span><a name="line.191"></a>
+<span class="sourceLineNo">192</span> int numMovedRegions = 0; //num moved regions from the initial configuration<a name="line.192"></a>
+<span class="sourceLineNo">193</span> Map<ServerName, List<RegionInfo>> clusterState;<a name="line.193"></a>
+<span class="sourceLineNo">194</span><a name="line.194"></a>
+<span class="sourceLineNo">195</span> protected final RackManager rackManager;<a name="line.195"></a>
+<span class="sourceLineNo">196</span> // Maps region -> rackIndex -> locality of region on rack<a name="line.196"></a>
+<span class="sourceLineNo">197</span> private float[][] rackLocalities;<a name="line.197"></a>
+<span class="sourceLineNo">198</span> // Maps localityType -> region -> [server|rack]Index with highest locality<a name="line.198"></a>
+<span class="sourceLineNo">199</span> private int[][] regionsToMostLocalEntities;<a name="line.199"></a>
+<span class="sourceLineNo">200</span><a name="line.200"></a>
+<span class="sourceLineNo">201</span> protected Cluster(<a name="line.201"></a>
+<span class="sourceLineNo">202</span> Map<ServerName, List<RegionInfo>> clusterState,<a name="line.202"></a>
+<span class="sourceLineNo">203</span> Map<String, Deque<BalancerRegionLoad>> loads,<a name="line.203"></a>
+<span class="sourceLineNo">204</span> RegionLocationFinder regionFinder,<a name="line.204"></a>
+<span class="sourceLineNo">205</span> RackManager rackManager) {<a name="line.205"></a>
+<span class="sourceLineNo">206</span> this(null, clusterState, loads, regionFinder, rackManager);<a name="line.206"></a>
+<span class="sourceLineNo">207</span> }<a name="line.207"></a>
+<span class="sourceLineNo">208</span><a name="line.208"></a>
+<span class="sourceLineNo">209</span> @SuppressWarnings("unchecked")<a name="line.209"></a>
+<span class="sourceLineNo">210</span> protected Cluster(<a name="line.210"></a>
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+<span class="sourceLineNo">212</span> Map<ServerName, List<RegionInfo>> clusterState,<a name="line.212"></a>
+<span class="sourceLineNo">213</span> Map<String, Deque<BalancerRegionLoad>> loads,<a name="line.213"></a>
+<span class="sourceLineNo">214</span> RegionLocationFinder regionFinder,<a name="line.214"></a>
+<span class="sourceLineNo">215</span> RackManager rackManager) {<a name="line.215"></a>
+<span class="sourceLineNo">216</span><a name="line.216"></a>
+<span class="sourceLineNo">217</span> if (unassignedRegions == null) {<a name="line.217"></a>
+<span class="sourceLineNo">218</span> unassignedRegions = EMPTY_REGION_LIST;<a name="line.218"></a>
+<span class="sourceLineNo">219</span> }<a name="line.219"></a>
+<span class="sourceLineNo">220</span><a name="line.220"></a>
+<span class="sourceLineNo">221</span> serversToIndex = new HashMap<>();<a name="line.221"></a>
+<span class="sourceLineNo">222</span> hostsToIndex = new HashMap<>();<a name="line.222"></a>
+<span class="sourceLineNo">223</span> racksToIndex = new HashMap<>();<a name="line.223"></a>
+<span class="sourceLineNo">224</span> tablesToIndex = new HashMap<>();<a name="line.224"></a>
+<span class="sourceLineNo">225</span><a name="line.225"></a>
+<span class="sourceLineNo">226</span> //TODO: We should get the list of tables from master<a name="line.226"></a>
+<span class="sourceLineNo">227</span> tables = new ArrayList<>();<a name="line.227"></a>
+<span class="sourceLineNo">228</span> this.rackManager = rackManager != null ? rackManager : new DefaultRackManager();<a name="line.228"></a>
+<span class="sourceLineNo">229</span><a name="line.229"></a>
+<span class="sourceLineNo">230</span> numRegions = 0;<a name="line.230"></a>
+<span class="sourceLineNo">231</span><a name="line.231"></a>
+<span class="sourceLineNo">232</span> List<List<Integer>> serversPerHostList = new ArrayList<>();<a name="line.232"></a>
+<span class="sourceLineNo">233</span> List<List<Integer>> serversPerRackList = new ArrayList<>();<a name="line.233"></a>
+<span class="sourceLineNo">234</span> this.clusterState = clusterState;<a name="line.234"></a>
+<span class="sourceLineNo">235</span> this.regionFinder = regionFinder;<a name="line.235"></a>
+<span class="sourceLineNo">236</span><a name="line.236"></a>
+<span class="sourceLineNo">237</span> // Use servername and port as there can be dead servers in this list. We want everything with<a name="line.237"></a>
+<span class="sourceLineNo">238</span> // a matching hostname and port to have the same index.<a name="line.238"></a>
+<span class="sourceLineNo">239</span> for (ServerName sn : clusterState.keySet()) {<a name="line.239"></a>
+<span class="sourceLineNo">240</span> if (sn == null) {<a name="line.240"></a>
+<span class="sourceLineNo">241</span> LOG.warn("TODO: Enable TRACE on BaseLoadBalancer. Empty servername); " +<a name="line.241"></a>
+<span class="sourceLineNo">242</span> "skipping; unassigned regions?");<a name="line.242"></a>
+<span class="sourceLineNo">243</span> if (LOG.isTraceEnabled()) {<a name="line.243"></a>
+<span class="sourceLineNo">244</span> LOG.trace("EMPTY SERVERNAME " + clusterState.toString());<a name="line.244"></a>
+<span class="sourceLineNo">245</span> }<a name="line.245"></a>
+<span class="sourceLineNo">246</span> continue;<a name="line.246"></a>
+<span class="sourceLineNo">247</span> }<a name="line.247"></a>
+<span class="sourceLineNo">248</span> if (serversToIndex.get(sn.getAddress()) == null) {<a name="line.248"></a>
+<span class="sourceLineNo">249</span> serversToIndex.put(sn.getAddress(), numServers++);<a name="line.249"></a>
+<span class="sourceLineNo">250</span> }<a name="line.250"></a>
+<span class="sourceLineNo">251</span> if (!hostsToIndex.containsKey(sn.getHostname())) {<a name="line.251"></a>
+<span class="sourceLineNo">252</span> hostsToIndex.put(sn.getHostname(), numHosts++);<a name="line.252"></a>
+<span class="sourceLineNo">253</span> serversPerHostList.add(new ArrayList<>(1));<a name="line.253"></a>
+<span class="sourceLineNo">254</span> }<a name="line.254"></a>
+<span class="sourceLineNo">255</span><a name="line.255"></a>
+<span class="sourceLineNo">256</span> int serverIndex = serversToIndex.get(sn.getAddress());<a name="line.256"></a>
+<span class="sourceLineNo">257</span> int hostIndex = hostsToIndex.get(sn.getHostname());<a name="line.257"></a>
+<span class="sourceLineNo">258</span> serversPerHostList.get(hostIndex).add(serverIndex);<a name="line.258"></a>
+<span class="sourceLineNo">259</span><a name="line.259"></a>
+<span class="sourceLineNo">260</span> String rack = this.rackManager.getRack(sn);<a name="line.260"></a>
+<span class="sourceLineNo">261</span> if (!racksToIndex.containsKey(rack)) {<a name="line.261"></a>
+<span class="sourceLineNo">262</span> racksToIndex.put(rack, numRacks++);<a name="line.262"></a>
+<span class="sourceLineNo">263</span> serversPerRackList.add(new ArrayList<>());<a name="line.263"></a>
+<span class="sourceLineNo">264</span> }<a name="line.264"></a>
+<span class="sourceLineNo">265</span> int rackIndex = racksToIndex.get(rack);<a name="line.265"></a>
+<span class="sourceLineNo">266</span> serversPerRackList.get(rackIndex).add(serverIndex);<a name="line.266"></a>
+<span class="sourceLineNo">267</span> }<a name="line.267"></a>
+<span class="sourceLineNo">268</span><a name="line.268"></a>
+<span class="sourceLineNo">269</span> // Count how many regions there are.<a name="line.269"></a>
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+<span class="sourceLineNo">274</span><a name="line.274"></a>
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+<span class="sourceLineNo">276</span> servers = new ServerName[numServers];<a name="line.276"></a>
+<span class="sourceLineNo">277</span> serversPerHost = new int[numHosts][];<a name="line.277"></a>
+<span class="sourceLineNo">278</span> serversPerRack = new int[numRacks][];<a name="line.278"></a>
+<span class="sourceLineNo">279</span> regions = new RegionInfo[numRegions];<a name="line.279"></a>
+<span class="sourceLineNo">280</span> regionIndexToServerIndex = new int[numRegions];<a name="line.280"></a>
+<span class="sourceLineNo">281</span> initialRegionIndexToServerIndex = new int[numRegions];<a name="line.281"></a>
+<span class="sourceLineNo">282</span> regionIndexToTableIndex = new int[numRegions];<a name="line.282"></a>
+<span class="sourceLineNo">283</span> regionIndexToPrimaryIndex = new int[numRegions];<a name="line.283"></a>
+<span class="sourceLineNo">284</span> regionLoads = new Deque[numRegions];<a name="line.284"></a>
+<span class="sourceLineNo">285</span><a name="line.285"></a>
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+<span class="sourceLineNo">287</span> serverIndicesSortedByRegionCount = new Integer[numServers];<a name="line.287"></a>
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+<span class="sourceLineNo">289</span> localityPerServer = new float[numServers];<a name="line.289"></a>
+<span class="sourceLineNo">290</span><a name="line.290"></a>
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+<span class="sourceLineNo">292</span> serverIndexToRackIndex = new int[numServers];<a name="line.292"></a>
+<span class="sourceLineNo">293</span> regionsPerServer = new int[numServers][];<a name="line.293"></a>
+<span class="sourceLineNo">294</span> serverIndexToRegionsOffset = new int[numServers];<a name="line.294"></a>
+<span class="sourceLineNo">295</span> regionsPerHost = new int[numHosts][];<a name="line.295"></a>
+<span class="sourceLineNo">296</span> regionsPerRack = new int[numRacks][];<a name="line.296"></a>
+<span class="sourceLineNo">297</span> primariesOfRegionsPerServer = new int[numServers][];<a name="line.297"></a>
+<span class="sourceLineNo">298</span> primariesOfRegionsPerHost = new int[numHosts][];<a name="line.298"></a>
+<span class="sourceLineNo">299</span> primariesOfRegionsPerRack = new int[numRacks][];<a name="line.299"></a>
+<span class="sourceLineNo">300</span><a name="line.300"></a>
+<span class="sourceLineNo">301</span> int tableIndex = 0, regionIndex = 0, regionPerServerIndex = 0;<a name="line.301"></a>
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+<span class="sourceLineNo">304</span> if (entry.getKey() == null) {<a name="line.304"></a>
+<span class="sourceLineNo">305</span> LOG.warn("SERVERNAME IS NULL, skipping " + entry.getValue());<a name="line.305"></a>
+<span class="sourceLineNo">306</span> continue;<a name="line.306"></a>
+<span class="sourceLineNo">307</span> }<a name="line.307"></a>
+<span class="sourceLineNo">308</span> int serverIndex = serversToIndex.get(entry.getKey().getAddress());<a name="line.308"></a>
+<span class="sourceLineNo">309</span><a name="line.309"></a>
+<span class="sourceLineNo">310</span> // keep the servername if this is the first server name for this hostname<a name="line.310"></a>
+<span class="sourceLineNo">311</span> // or this servername has the newest startcode.<a name="line.311"></a>
+<span class="sourceLineNo">312</span> if (servers[serverIndex] == null ||<a name="line.312"></a>
+<span class="sourceLineNo">313</span> servers[serverIndex].getStartcode() < entry.getKey().getStartcode()) {<a name="line.313"></a>
+<span class="sourceLineNo">314</span> servers[serverIndex] = entry.getKey();<a name="line.314"></a>
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+<span class="sourceLineNo">316</span><a name="line.316"></a>
+<span class="sourceLineNo">317</span> if (regionsPerServer[serverIndex] != null) {<a name="line.317"></a>
+<span class="sourceLineNo">318</span> // there is another server with the same hostAndPort in ClusterState.<a name="line.318"></a>
+<span class="sourceLineNo">319</span> // allocate the array for the total size<a name="line.319"></a>
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+<span class="sourceLineNo">321</span> } else {<a name="line.321"></a>
+<span class="sourceLineNo">322</span> regionsPerServer[serverIndex] = new int[entry.getValue().size()];<a name="line.322"></a>
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+<span class="sourceLineNo">326</span> serverIndicesSortedByLocality[serverIndex] = serverIndex;<a name="line.326"></a>
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+<span class="sourceLineNo">337</span><a name="line.337"></a>
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+<span class="sourceLineNo">344</span><a name="line.344"></a>
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+<span class="sourceLineNo">377</span><a name="line.377"></a>
+<span class="sourceLineNo">378</span> numTables = tables.size();<a name="line.378"></a>
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+<span class="sourceLineNo">690</span> public String toString() {<a name="line.690"></a>
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+<span class="sourceLineNo">693</span> }<a name="line.693"></a>
+<span class="sourceLineNo">694</span><a name="line.694"></a>
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+<span class="sourceLineNo">698</span> public int toServer;<a name="line.698"></a>
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+<span class="sourceLineNo">706</span> }<a name="line.706"></a>
+<span class="sourceLineNo">707</span> @Override<a name="line.707"></a>
+<span class="sourceLineNo">708</span> public Action undoAction() {<a name="line.708"></a>
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+<span class="sourceLineNo">710</span> }<a name="line.710"></a>
+<span class="sourceLineNo">711</span> @Override<a name="line.711"></a>
+<span class="sourceLineNo">712</span> public String toString() {<a name="line.712"></a>
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+<span class="sourceLineNo">714</span> }<a name="line.714"></a>
+<span class="sourceLineNo">715</span> }<a name="line.715"></a>
+<span class="sourceLineNo">716</span><a name="line.716"></a>
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+<span class="sourceLineNo">718</span> justification="Mistake. Too disruptive to change now")<a name="line.718"></a>
+<span class="sourceLineNo">719</span> public static final Action NullAction = new Action(Type.NULL);<a name="line.719"></a>
+<span class="sourceLineNo">720</span><a name="line.720"></a>
+<span class="sourceLineNo">721</span> public void doAction(Action action) {<a name="line.721"></a>
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+<span class="sourceLineNo">724</span> case ASSIGN_REGION:<a name="line.724"></a>
+<span class="sourceLineNo">725</span> // FindBugs: Having the assert quietens FB BC_UNCONFIRMED_CAST warnings<a name="line.725"></a>
+<span class="sourceLineNo">726</span> assert action instanceof AssignRegionAction: action.getClass();<a name="line.726"></a>
+<span class="sourceLineNo">727</span> AssignRegionAction ar = (AssignRegionAction) action;<a name="line.727"></a>
+<span class="sourceLineNo">728</span> regionsPerServer[ar.server] = addRegion(regionsPerServer[ar.server], ar.region);<a name="line.728"></a>
+<span class="sourceLineNo">729</span> regionMoved(ar.region, -1, ar.server);<a name="line.729"></a>
+<span class="sourceLineNo">730</span> break;<a name="line.730"></a>
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+<span class="sourceLineNo">733</span> MoveRegionAction mra = (MoveRegionAction) action;<a name="line.733"></a>
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+<span class="sourceLineNo">735</span> regionsPerServer[mra.toServer] = addRegion(regionsPerServer[mra.toServer], mra.region);<a name="line.735"></a>
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+<span class="sourceLineNo">737</span> break;<a name="line.737"></a>
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+<span class="sourceLineNo">740</span> SwapRegionsAction a = (SwapRegionsAction) action;<a name="line.740"></a>
+<span class="sourceLineNo">741</span> regionsPerServer[a.fromServer] = replaceRegion(regionsPerServer[a.fromServer], a.fromRegion, a.toRegion);<a name="line.741"></a>
+<span class="sourceLineNo">742</span> regionsPerServer[a.toServer] = replaceRegion(regionsPerServer[a.toServer], a.toRegion, a.fromRegion);<a name="line.742"></a>
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+<span class="sourceLineNo">744</span> regionMoved(a.toRegion, a.toServer, a.fromServer);<a name="line.744"></a>
+<span class="sourceLineNo">745</span> break;<a name="line.745"></a>
+<span class="sourceLineNo">746</span> default:<a name="line.746"></a>
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+<span class="sourceLineNo">749</span> }<a name="line.749"></a>
+<span class="sourceLineNo">750</span><a name="line.750"></a>
+<span class="sourceLineNo">751</span> /**<a name="line.751"></a>
+<span class="sourceLineNo">752</span> * Return true if the placement of region on server would lower the availability<a name="line.752"></a>
+<span class="sourceLineNo">753</span> * of the region in question<a name="line.753"></a>
+<span class="sourceLineNo">754</span> * @return true or false<a name="line.754"></a>
+<span class="sourceLineNo">755</span> */<a name="line.755"></a>
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+<span class="sourceLineNo">760</span> int server = serversToIndex.get(serverName.getAddress());<a name="line.760"></a>
+<span class="sourceLineNo">761</span> int region = regionsToIndex.get(regionInfo);<a name="line.761"></a>
+<span class="sourceLineNo">762</span><a name="line.762"></a>
+<span class="sourceLineNo">763</span> // Region replicas for same region should better assign to different servers<a name="line.763"></a>
+<span class="sourceLineNo">764</span> for (int i : regionsPerServer[server]) {<a name="line.764"></a>
+<span class="sourceLineNo">765</span> RegionInfo otherRegionInfo = regions[i];<a name="line.765"></a>
+<span class="sourceLineNo">766</span> if (RegionReplicaUtil.isReplicasForSameRegion(regionInfo, otherRegionInfo)) {<a name="line.766"></a>
+<span class="sourceLineNo">767</span> return true;<a name="line.767"></a>
+<span class="sourceLineNo">768</span> }<a name="line.768"></a>
+<span class="sourceLineNo">769</span> }<a name="line.769"></a>
+<span class="sourceLineNo">770</span><a name="line.770"></a>
+<span class="sourceLineNo">771</span> int primary = regionIndexToPrimaryIndex[region];<a name="line.771"></a>
+<span class="sourceLineNo">772</span> if (primary == -1) {<a name="line.772"></a>
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+<span class="sourceLineNo">774</span> }<a name="line.774"></a>
+<span class="sourceLineNo">775</span> // there is a subset relation for server < host < rack<a name="line.775"></a>
+<span class="sourceLineNo">776</span> // check server first<a name="line.776"></a>
+<span class="sourceLineNo">777</span> if (contains(primariesOfRegionsPerServer[server], primary)) {<a name="line.777"></a>
+<span class="sourceLineNo">778</span> // check for whether there are other servers that we can place this region<a name="line.778"></a>
+<span class="sourceLineNo">779</span> for (int i = 0; i < primariesOfRegionsPerServer.length; i++) {<a name="line.779"></a>
+<span class="sourceLineNo">780</span> if (i != server && !contains(primariesOfRegionsPerServer[i], primary)) {<a name="line.780"></a>
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+<span class="sourceLineNo">783</span> }<a name="line.783"></a>
+<span class="sourceLineNo">784</span> return false; // there is not a better server to place this<a name="line.784"></a>
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+<span class="sourceLineNo">786</span><a name="line.786"></a>
+<span class="sourceLineNo">787</span> // check host<a name="line.787"></a>
+<span class="sourceLineNo">788</span> if (multiServersPerHost) {<a name="line.788"></a>
+<span class="sourceLineNo">789</span> // these arrays would only be allocated if we have more than one server per host<a name="line.789"></a>
+<span class="sourceLineNo">790</span> int host = serverIndexToHostIndex[server];<a name="line.790"></a>
+<span class="sourceLineNo">791</span> if (contains(primariesOfRegionsPerHost[host], primary)) {<a name="line.791"></a>
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+<span class="sourceLineNo">801</span><a name="line.801"></a>
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+<span class="sourceLineNo">805</span> if (contains(primariesOfRegionsPerRack[rack], primary)) {<a name="line.805"></a>
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+<span class="sourceLineNo">818</span><a name="line.818"></a>
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+<span class="sourceLineNo">840</span><a name="line.840"></a>
+<span class="sourceLineNo">841</span> //check whether this caused maxRegionsPerTable in the new Server to be updated<a name="line.841"></a>
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+<span class="sourceLineNo">867</span> int newHost = serverIndexToHostIndex[newServer];<a name="line.867"></a>
+<span class="sourceLineNo">868</span> if (newHost != oldHost) {<a name="line.868"></a>
+<span class="sourceLineNo">869</span> regionsPerHost[newHost] = addRegion(regionsPerHost[newHost], region);<a name="line.869"></a>
+<span class="sourceLineNo">870</span> primariesOfRegionsPerHost[newHost] = addRegionSorted(primariesOfRegionsPerHost[newHost], primary);<a name="line.870"></a>
+<span class="sourceLineNo">871</span> if (oldHost >= 0) {<a name="line.871"></a>
+<span class="sourceLineNo">872</span> regionsPerHost[oldHost] = removeRegion(regionsPerHost[oldHost], region);<a name="line.872"></a>
+<span class="sourceLineNo">873</span> primariesOfRegionsPerHost[oldHost] = removeRegion(<a name="line.873"></a>
+<span class="sourceLineNo">874</span> primariesOfRegionsPerHost[oldHost], primary); // will still be sorted<a name="line.874"></a>
+<span class="sourceLineNo">875</span> }<a name="line.875"></a>
+<span class="sourceLineNo">876</span> }<a name="line.876"></a>
+<span class="sourceLineNo">877</span> }<a name="line.877"></a>
+<span class="sourceLineNo">878</span><a name="line.878"></a>
+<span class="sourceLineNo">879</span> // update for racks<a name="line.879"></a>
+<span class="sourceLineNo">880</span> if (numRacks > 1) {<a name="line.880"></a>
+<span class="sourceLineNo">881</span> int oldRack = oldServer >= 0 ? serverIndexToRackIndex[oldServer] : -1;<a name="line.881"></a>
+<span class="sourceLineNo">882</span> int newRack = serverIndexToRackIndex[newServer];<a name="line.882"></a>
+<span class="sourceLineNo">883</span> if (newRack != oldRack) {<a name="line.883"></a>
+<span class="sourceLineNo">884</span> regionsPerRack[newRack] = addRegion(regionsPerRack[newRack], region);<a name="line.884"></a>
+<span class="sourceLineNo">885</span> primariesOfRegionsPerRack[newRack] = addRegionSorted(primariesOfRegionsPerRack[newRack], primary);<a name="line.885"></a>
+<span class="sourceLineNo">886</span> if (oldRack >= 0) {<a name="line.886"></a>
+<span class="sourceLineNo">887</span> regionsPerRack[oldRack] = removeRegion(regionsPerRack[oldRack], region);<a name="line.887"></a>
+<span class="sourceLineNo">888</span> primariesOfRegionsPerRack[oldRack] = removeRegion(<a name="line.888"></a>
+<span class="sourceLineNo">889</span> primariesOfRegionsPerRack[oldRack], primary); // will still be sorted<a name="line.889"></a>
+<span class="sourceLineNo">890</span> }<a name="line.890"></a>
+<span class="sourceLineNo">891</span> }<a name="line.891"></a>
+<span class="sourceLineNo">892</span> }<a name="line.892"></a>
+<span class="sourceLineNo">893</span> }<a name="line.893"></a>
+<span class="sourceLineNo">894</span><a name="line.894"></a>
+<span class="sourceLineNo">895</span> int[] removeRegion(int[] regions, int regionIndex) {<a name="line.895"></a>
+<span class="sourceLineNo">896</span> //TODO: this maybe costly. Consider using linked lists<a name="line.896"></a>
+<span class="sourceLineNo">897</span> int[] newRegions = new int[regions.length - 1];<a name="line.897"></a>
+<span class="sourceLineNo">898</span> int i = 0;<a name="line.898"></a>
+<span class="sourceLineNo">899</span> for (i = 0; i < regions.length; i++) {<a name="line.899"></a>
+<span class="sourceLineNo">900</span> if (regions[i] == regionIndex) {<a name="line.900"></a>
+<span class="sourceLineNo">901</span> break;<a name="line.901"></a>
+<span class="sourceLineNo">902</span> }<a name="line.902"></a>
+<span class="sourceLineNo">903</span> newRegions[i] = regions[i];<a name="line.903"></a>
+<span class="sourceLineNo">904</span> }<a name="line.904"></a>
+<span class="sourceLineNo">905</span> System.arraycopy(regions, i+1, newRegions, i, newRegions.length - i);<a name="line.905"></a>
+<span class="sourceLineNo">906</span> return newRegions;<a name="line.906"></a>
+<span class="sourceLineNo">907</span> }<a name="line.907"></a>
+<span class="sourceLineNo">908</span><a name="line.908"></a>
+<span class="sourceLineNo">909</span> int[] addRegion(int[] regions, int regionIndex) {<a name="line.909"></a>
+<span class="sourceLineNo">910</span> int[] newRegions = new int[regions.length + 1];<a name="line.910"></a>
+<span class="sourceLineNo">911</span> System.arraycopy(regions, 0, newRegions, 0, regions.length);<a name="line.911"></a>
+<span class="sourceLineNo">912</span> newRegions[newRegions.length - 1] = regionIndex;<a name="line.912"></a>
+<span class="sourceLineNo">913</span> return newRegions;<a name="line.913"></a>
+<span class="sourceLineNo">914</span> }<a name="line.914"></a>
+<span class="sourceLineNo">915</span><a name="line.915"></a>
+<span class="sourceLineNo">916</span> int[] addRegionSorted(int[] regions, int regionIndex) {<a name="line.916"></a>
+<span class="sourceLineNo">917</span> int[] newRegions = new int[regions.length + 1];<a name="line.917"></a>
+<span class="sourceLineNo">918</span> int i = 0;<a name="line.918"></a>
+<span class="sourceLineNo">919</span> for (i = 0; i < regions.length; i++) { // find the index to insert<a name="line.919"></a>
+<span class="sourceLineNo">920</span> if (regions[i] > regionIndex) {<a name="line.920"></a>
+<span class="sourceLineNo">921</span> break;<a name="line.921"></a>
+<span class="sourceLineNo">922</span> }<a name="line.922"></a>
+<span class="sourceLineNo">923</span> }<a name="line.923"></a>
+<span class="sourceLineNo">924</span> System.arraycopy(regions, 0, newRegions, 0, i); // copy first half<a name="line.924"></a>
+<span class="sourceLineNo">925</span> System.arraycopy(regions, i, newRegions, i+1, regions.length - i); // copy second half<a name="line.925"></a>
+<span class="sourceLineNo">926</span> newRegions[i] = regionIndex;<a name="line.926"></a>
+<span class="sourceLineNo">927</span><a name="line.927"></a>
+<span class="sourceLineNo">928</span> return newRegions;<a name="line.928"></a>
+<span class="sourceLineNo">929</span> }<a name="line.929"></a>
+<span class="sourceLineNo">930</span><a name="line.930"></a>
+<span class="sourceLineNo">931</span> int[] replaceRegion(int[] regions, int regionIndex, int newRegionIndex) {<a name="line.931"></a>
+<span class="sourceLineNo">932</span> int i = 0;<a name="line.932"></a>
+<span class="sourceLineNo">933</span> for (i = 0; i < regions.length; i++) {<a name="line.933"></a>
+<span class="sourceLineNo">934</span> if (regions[i] == regionIndex) {<a name="line.934"></a>
+<span class="sourceLineNo">935</span> regions[i] = newRegionIndex;<a name="line.935"></a>
+<span class="sourceLineNo">936</span> break;<a name="line.936"></a>
+<span class="sourceLineNo">937</span> }<a name="line.937"></a>
+<span class="sourceLineNo">938</span> }<a name="line.938"></a>
+<span class="sourceLineNo">939</span> return regions;<a name="line.939"></a>
+<span class="sourceLineNo">940</span> }<a name="line.940"></a>
+<span class="sourceLineNo">941</span><a name="line.941"></a>
+<span class="sourceLineNo">942</span> void sortServersByRegionCount() {<a name="line.942"></a>
+<span class="sourceLineNo">943</span> Arrays.sort(serverIndicesSortedByRegionCount, numRegionsComparator);<a name="line.943"></a>
+<span class="sourceLineNo">944</span> }<a name="line.944"></a>
+<span class="sourceLineNo">945</span><a name="line.945"></a>
+<span class="sourceLineNo">946</span> int getNumRegions(int server) {<a name="line.946"></a>
+<span class="sourceLineNo">947</span> return regionsPerServer[server].length;<a name="line.947"></a>
+<span class="sourceLineNo">948</span> }<a name="line.948"></a>
+<span class="sourceLineNo">949</span><a name="line.949"></a>
+<span class="sourceLineNo">950</span> boolean contains(int[] arr, int val) {<a name="line.950"></a>
+<span class="sourceLineNo">951</span> return Arrays.binarySearch(arr, val) >= 0;<a name="line.951"></a>
+<span class="sourceLineNo">952</span> }<a name="line.952"></a>
+<span class="sourceLineNo">953</span><a name="line.953"></a>
+<span class="sourceLineNo">954</span> private Comparator<Integer> numRegionsComparator = Comparator.comparingInt(this::getNumRegions);<a name="line.954"></a>
+<span class="sourceLineNo">955</span><a name="line.955"></a>
+<span class="sourceLineNo">956</span> int getLowestLocalityRegionOnServer(int serverIndex) {<a name="line.956"></a>
+<span class="sourceLineNo">957</span> if (regionFinder != null) {<a name="line.957"></a>
+<span class="sourceLineNo">958</span> float lowestLocality = 1.0f;<a name="line.958"></a>
+<span class="sourceLineNo">959</span> int lowestLocalityRegionIndex = -1;<a name="line.959"></a>
+<span class="sourceLineNo">960</span> if (regionsPerServer[serverIndex].length == 0) {<a name="line.960"></a>
+<span class="sourceLineNo">961</span> // No regions on that region server<a name="line.961"></a>
+<span class="sourceLineNo">962</span> return -1;<a name="line.962"></a>
+<span class="sourceLineNo">963</span> }<a name="line.963"></a>
+<span class="sourceLineNo">964</span> for (int j = 0; j < regionsPerServer[serverIndex].length; j++) {<a name="line.964"></a>
+<span class="sourceLineNo">965</span> int regionIndex = regionsPerServer[serverIndex][j];<a name="line.965"></a>
+<span class="sourceLineNo">966</span> HDFSBlocksDistribution distribution = regionFinder<a name="line.966"></a>
+<span class="sourceLineNo">967</span> .getBlockDistribution(regions[regionIndex]);<a name="line.967"></a>
+<span class="sourceLineNo">968</span> float locality = distribution.getBlockLocalityIndex(servers[serverIndex].getHostname());<a name="line.968"></a>
+<span class="sourceLineNo">969</span> // skip empty region<a name="line.969"></a>
+<span class="sourceLineNo">970</span> if (distribution.getUniqueBlocksTotalWeight() == 0) {<a name="line.970"></a>
+<span class="sourceLineNo">971</span> continue;<a name="line.971"></a>
+<span class="sourceLineNo">972</span> }<a name="line.972"></a>
+<span class="sourceLineNo">973</span> if (locality < lowestLocality) {<a name="line.973"></a>
+<span class="sourceLineNo">974</span> lowestLocality = locality;<a name="line.974"></a>
+<span class="sourceLineNo">975</span> lowestLocalityRegionIndex = j;<a name="line.975"></a>
+<span class="sourceLineNo">976</span> }<a name="line.976"></a>
+<span class="sourceLineNo">977</span> }<a name="line.977"></a>
+<span class="sourceLineNo">978</span> if (lowestLocalityRegionIndex == -1) {<a name="line.978"></a>
+<span class="sourceLineNo">979</span> return -1;<a name="line.979"></a>
+<span class="sourceLineNo">980</span> }<a name="line.980"></a>
+<span class="sourceLineNo">981</span> if (LOG.isTraceEnabled()) {<a name="line.981"></a>
+<span class="sourceLineNo">982</span> LOG.trace("Lowest locality region is "<a name="line.982"></a>
+<span class="sourceLineNo">983</span> + regions[regionsPerServer[serverIndex][lowestLocalityRegionIndex]]<a name="line.983"></a>
+<span class="sourceLineNo">984</span> .getRegionNameAsString() + " with locality " + lowestLocality<a name="line.984"></a>
+<span class="sourceLineNo">985</span> + " and its region server contains " + regionsPerServer[serverIndex].length<a name="line.985"></a>
... 39122 lines suppressed ...