diff --git src/main/docbkx/troubleshooting.xml src/main/docbkx/troubleshooting.xml index 3d480d3..e3cfb1a 100644 --- src/main/docbkx/troubleshooting.xml +++ src/main/docbkx/troubleshooting.xml @@ -1111,6 +1111,23 @@ ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: ZooKeeper session expi +
+ Snapshot Errors Due to Reverse DNS + 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: + +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. + + 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. + +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 + +
Shutdown Errors