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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/08/10 14:48:59 UTC
[16/18] hbase-site git commit: Published site at
397388316ead020d005a33e233364d166d4add00.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/5c5e961f/book.html
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diff --git a/book.html b/book.html
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@@ -28162,6 +28162,33 @@ drop_namespace 'pre_upgrade_cleanup'</pre>
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+<div class="sect2">
+<h3 id="_data_block_encoding_tool"><a class="anchor" href="#_data_block_encoding_tool"></a>149.23. Data Block Encoding Tool</h3>
+<div class="paragraph">
+<p>Tests various compression algorithms with different data block encoder for key compression on an existing HFile.
+Useful for testing, debugging and benchmarking.</p>
+</div>
+<div class="paragraph">
+<p>You must specify <code>-f</code> which is the full path of the HFile.</p>
+</div>
+<div class="paragraph">
+<p>The result shows both the performance (MB/s) of compression/decompression and encoding/decoding, and the data savings on the HFile.</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre>$ bin/hbase org.apache.hadoop.hbase.regionserver.DataBlockEncodingTool
+Usages: hbase org.apache.hadoop.hbase.regionserver.DataBlockEncodingTool
+Options:
+ -f HFile to analyse (REQUIRED)
+ -n Maximum number of key/value pairs to process in a single benchmark run.
+ -b Whether to run a benchmark to measure read throughput.
+ -c If this is specified, no correctness testing will be done.
+ -a What kind of compression algorithm use for test. Default value: GZ.
+ -t Number of times to run each benchmark. Default value: 12.
+ -omit Number of first runs of every benchmark to omit from statistics. Default value: 2.</pre>
+</div>
+</div>
+</div>
</div>
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<div class="sect1">
@@ -41092,7 +41119,7 @@ org/apache/hadoop/hbase/security/access/AccessControlClient.revoke:(Lorg/apache/
<div id="footer">
<div id="footer-text">
Version 3.0.0-SNAPSHOT<br>
-Last updated 2018-08-09 14:30:02 UTC
+Last updated 2018-08-10 14:29:54 UTC
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/5c5e961f/bulk-loads.html
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diff --git a/bulk-loads.html b/bulk-loads.html
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@@ -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="20180809" />
+ <meta name="Date-Revision-yyyymmdd" content="20180810" />
<meta http-equiv="Content-Language" content="en" />
<title>Apache HBase –
Bulk Loads in Apache HBase (TM)
@@ -306,7 +306,7 @@ 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: 2018-08-09</li>
+ <li id="publishDate" class="pull-right">Last Published: 2018-08-10</li>
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