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HBASE-8473 add note to ref guide about snapshots and ec2 reverse dns requirements (Misty Stanley-Jones)

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stack 2014-07-13 21:56:51 -07:00
parent a6fd48ba12
commit 1cedeae897
1 changed files with 17 additions and 0 deletions
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src/main/docbkx/troubleshooting.xml
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@ -1111,6 +1111,23 @@ ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: ZooKeeper session expi
</section>
</section>
<section>
<title>Snapshot Errors Due to Reverse DNS</title>
<para>Several operations within HBase, including snapshots, rely on properly configured
reverse DNS. Some environments, such as Amazon EC2, have trouble with reverse DNS. If you
see errors like the following on your RegionServers, check your reverse DNS configuration:</para>
<screen>
2013-05-01 00:04:56,356 DEBUG org.apache.hadoop.hbase.procedure.Subprocedure: Subprocedure 'backup1'
coordinator notified of 'acquire', waiting on 'reached' or 'abort' from coordinator.
</screen>
<para>In general, the hostname reported by the RegionServer needs to be the same as the
hostname the Master is trying to reach. You can see a hostname mismatch by looking for the
following type of message in the RegionServer's logs at start-up.</para>
<screen>
2013-05-01 00:03:00,614 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: Master passed us hostname
to use. Was=myhost-1234, Now=ip-10-55-88-99.ec2.internal
</screen>
</section>
<section xml:id="trouble.rs.shutdown">
<title>Shutdown Errors</title>
<para />