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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/03/07 14:54:26 UTC
[41/51] [partial] hbase-site git commit: Published site at
6b77786dfc46d25ac5bb5f1c8a4a9eb47b52a604.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/81cde4ce/apidocs/overview-tree.html
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/81cde4ce/book.html
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diff --git a/book.html b/book.html
index 4ee0401..7373777 100644
--- a/book.html
+++ b/book.html
@@ -1448,11 +1448,6 @@ For most configurations, a restart is needed for servers to pick up changes. Dyn
<td class="tableblock halign-left valign-top"><p class="tableblock">yes</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">yes</p></td>
</tr>
-<tr>
-<td class="tableblock halign-left valign-top"><p class="tableblock">1.1</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">yes</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">Running with JDK 8 will work but is not well tested.</p></td>
-</tr>
</tbody>
</table>
<div class="admonitionblock note">
@@ -1612,16 +1607,14 @@ earlier versions of Hadoop. See the table below for requirements specific to dif
</div>
<table class="tableblock frame-all grid-all spread">
<colgroup>
-<col style="width: 20%;">
-<col style="width: 20%;">
-<col style="width: 20%;">
-<col style="width: 20%;">
-<col style="width: 20%;">
+<col style="width: 25%;">
+<col style="width: 25%;">
+<col style="width: 25%;">
+<col style="width: 25%;">
</colgroup>
<thead>
<tr>
<th class="tableblock halign-left valign-top"></th>
-<th class="tableblock halign-left valign-top">HBase-1.1.x</th>
<th class="tableblock halign-left valign-top">HBase-1.2.x</th>
<th class="tableblock halign-left valign-top">HBase-1.3.x</th>
<th class="tableblock halign-left valign-top">HBase-2.0.x</th>
@@ -1633,25 +1626,21 @@ earlier versions of Hadoop. See the table below for requirements specific to dif
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Hadoop-2.1.0-beta</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Hadoop-2.2.0</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">NT</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Hadoop-2.3.x</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">NT</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
@@ -1660,14 +1649,12 @@ earlier versions of Hadoop. See the table below for requirements specific to dif
<td class="tableblock halign-left valign-top"><p class="tableblock">Hadoop-2.4.x</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Hadoop-2.5.x</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
</tr>
<tr>
@@ -1675,11 +1662,9 @@ earlier versions of Hadoop. See the table below for requirements specific to dif
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Hadoop-2.6.1+</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">NT</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
@@ -1689,11 +1674,9 @@ earlier versions of Hadoop. See the table below for requirements specific to dif
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Hadoop-2.7.1+</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">NT</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">S</p></td>
@@ -1703,21 +1686,18 @@ earlier versions of Hadoop. See the table below for requirements specific to dif
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Hadoop-2.8.1</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">X</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top"><p class="tableblock">Hadoop-3.0.0</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">NT</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">NT</p></td>
<td class="tableblock halign-left valign-top"><p class="tableblock">NT</p></td>
-<td class="tableblock halign-left valign-top"><p class="tableblock">NT</p></td>
</tr>
</tbody>
</table>
@@ -8092,8 +8072,10 @@ In particular:</p>
<div class="paragraph">
<p>Below we describe how the version dimension in HBase currently works.
See <a href="https://issues.apache.org/jira/browse/HBASE-2406">HBASE-2406</a> for discussion of HBase versions. <a href="https://www.ngdata.com/bending-time-in-hbase/">Bending time in HBase</a> makes for a good read on the version, or time, dimension in HBase.
-It has more detail on versioning than is provided here.
-As of this writing, the limitation <em>Overwriting values at existing timestamps</em> mentioned in the article no longer holds in HBase.
+It has more detail on versioning than is provided here.</p>
+</div>
+<div class="paragraph">
+<p>As of this writing, the limitation <em>Overwriting values at existing timestamps</em> mentioned in the article no longer holds in HBase.
This section is basically a synopsis of this article by Bruno Dumon.</p>
</div>
<div class="sect2">
@@ -8308,9 +8290,46 @@ The change has been backported to HBase 0.94 and newer branches.
</div>
</div>
<div class="sect2">
-<h3 id="_current_limitations"><a class="anchor" href="#_current_limitations"></a>28.3. Current Limitations</h3>
+<h3 id="new.version.behavior"><a class="anchor" href="#new.version.behavior"></a>28.3. Optional New Version and Delete behavior in HBase-2.0.0</h3>
+<div class="paragraph">
+<p>In <code>hbase-2.0.0</code>, the operator can specify an alternate version and
+delete treatment by setting the column descriptor property
+<code>NEW_VERSION_BEHAVIOR</code> to true (To set a property on a column family
+descriptor, you must first disable the table and then alter the
+column family descriptor; see <a href="#cf.keep.deleted">Keeping Deleted Cells</a> for an example
+of editing an attribute on a column family descriptor).</p>
+</div>
+<div class="paragraph">
+<p>The 'new version behavior', undoes the limitations listed below
+whereby a <code>Delete</code> ALWAYS overshadows a <code>Put</code> if at the same
+location — i.e. same row, column family, qualifier and timestamp — regardless of which arrived first. Version accounting is also
+changed as deleted versions are considered toward total version count.
+This is done to ensure results are not changed should a major
+compaction intercede. See <code>HBASE-15968</code> and linked issues for
+discussion.</p>
+</div>
+<div class="paragraph">
+<p>Running with this new configuration currently costs; we factor
+the Cell MVCC on every compare so we burn more CPU. The slow
+down will depend. In testing we’ve seen between 0% and 25%
+degradation.</p>
+</div>
+<div class="paragraph">
+<p>If replicating, it is advised that you run with the new
+serial replication feature (See <code>HBASE-9465</code>; the serial
+replication feature did NOT make it into <code>hbase-2.0.0</code> but
+should arrive in a subsequent hbase-2.x release) as now
+the order in which Mutations arrive is a factor.</p>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_current_limitations"><a class="anchor" href="#_current_limitations"></a>28.4. Current Limitations</h3>
+<div class="paragraph">
+<p>The below limitations are addressed in hbase-2.0.0. See
+the section above, <a href="#new.version.behavior">Optional New Version and Delete behavior in HBase-2.0.0</a>.</p>
+</div>
<div class="sect3">
-<h4 id="_deletes_mask_puts"><a class="anchor" href="#_deletes_mask_puts"></a>28.3.1. Deletes mask Puts</h4>
+<h4 id="_deletes_mask_puts"><a class="anchor" href="#_deletes_mask_puts"></a>28.4.1. Deletes mask Puts</h4>
<div class="paragraph">
<p>Deletes mask puts, even puts that happened after the delete was entered.
See <a href="https://issues.apache.org/jira/browse/HBASE-2256">HBASE-2256</a>.
@@ -8325,7 +8344,7 @@ But they can occur even if you do not care about time: just do delete and put im
</div>
</div>
<div class="sect3">
-<h4 id="major.compactions.change.query.results"><a class="anchor" href="#major.compactions.change.query.results"></a>28.3.2. Major compactions change query results</h4>
+<h4 id="major.compactions.change.query.results"><a class="anchor" href="#major.compactions.change.query.results"></a>28.4.2. Major compactions change query results</h4>
<div class="paragraph">
<p><em>…​create three cell versions at t1, t2 and t3, with a maximum-versions
setting of 2. So when getting all versions, only the values at t2 and t3 will be
@@ -37267,7 +37286,7 @@ The server will return cellblocks compressed using this same compressor as long
<div id="footer">
<div id="footer-text">
Version 3.0.0-SNAPSHOT<br>
-Last updated 2018-03-06 14:30:05 UTC
+Last updated 2018-03-07 14:29:56 UTC
</div>
</div>
</body>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/81cde4ce/bulk-loads.html
----------------------------------------------------------------------
diff --git a/bulk-loads.html b/bulk-loads.html
index 7d61b14..fe3a7d7 100644
--- a/bulk-loads.html
+++ b/bulk-loads.html
@@ -7,7 +7,7 @@
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
- <meta name="Date-Revision-yyyymmdd" content="20180306" />
+ <meta name="Date-Revision-yyyymmdd" content="20180307" />
<meta http-equiv="Content-Language" content="en" />
<title>Apache HBase –
Bulk Loads in Apache HBase (TM)
@@ -299,7 +299,7 @@ under the License. -->
<a href="https://www.apache.org/">The Apache Software Foundation</a>.
All rights reserved.
- <li id="publishDate" class="pull-right">Last Published: 2018-03-06</li>
+ <li id="publishDate" class="pull-right">Last Published: 2018-03-07</li>
</p>
</div>