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performance.xml - added another paragraph in "One Hot Region" section. 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1233610 13f79535-47bb-0310-9956-ffa450edef68
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Doug Meil 2012-01-19 22:31:16 +00:00
parent 7e363179c3
commit c06edb6808
1 changed files with 7 additions and 1 deletions
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src/docbkx/performance.xml
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@ -358,7 +358,13 @@ Deferred log flush can be configured on tables via <link
<title>Anti-Pattern: One Hot Region</title>
<para>If all your data is being written to one region at a time, then re-read the
section on processing <link linkend="timeseries">timeseries</link> data.</para>
<para>Also, see <xref linkend="precreate.regions"/>, as well as <xref linkend="perf.configurations"/> </para>
<para>Also, if you are pre-splitting regions and all your data is <emphasis>still</emphasis> winding up in a single region even though
your keys aren't monotonically increasing, confirm that your keyspace actually works with the split strategy. There are a
variety of reasons that regions may appear "well split" but won't work with your data. As
the HBase client communicates directly with the RegionServers, this can be obtained via
<link xlink:href="http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/client/HTable.html#getRegionLocation%28byte[]%29">HTable.getRegionLocation</link>.
</para>
<para>See <xref linkend="precreate.regions"/>, as well as <xref linkend="perf.configurations"/> </para>
</section>
</section> <!-- writing -->