Anoop,
Following is stack trace
ERROR org.apache.hadoop.hbase.executor.EventHandler: Caught throwable while
processing event M_RS_CLOSE_REGIONjava.lang.RuntimeException:
org.apache.hadoop.hbase.DroppedSnapshotException: region:
TableName,better,1372421736221.55b13dd9eb08790e8e93757910209c21. at
org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:133)
at
org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:169)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)Caused by:
org.apache.hadoop.hbase.DroppedSnapshotException: region:
TableName,better,1372421736221.55b13dd9eb08790e8e93757910209c21. at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1474)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1353)
at
org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:905)
at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:845)
at
org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:119)
... 4 moreCaused by: java.io.FileNotFoundException: File does not
exist:
/hbase/TableName/55b13dd9eb08790e8e93757910209c21/WPA/ba8ae96c466f4559901127ca24378020
at
org.apache.hadoop.hdfs.DFSClient$DFSInputStream.openInfo(DFSClient.java:1843)
at
org.apache.hadoop.hdfs.DFSClient$DFSInputStream.<init>(DFSClient.java:1834)
at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:578) at
org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:154)
at
org.apache.hadoop.fs.FilterFileSystem.open(FilterFileSystem.java:108) at
org.apache.hadoop.fs.FileSystem.open(FileSystem.java:427) at
org.apache.hadoop.hbase.io.hfile.HFile.createReaderWithEncoding(HFile.java:547)
at
org.apache.hadoop.hbase.regionserver.StoreFile$Reader.<init>(StoreFile.java:1245)
at
org.apache.hadoop.hbase.regionserver.StoreFile.open(StoreFile.java:512)
at
org.apache.hadoop.hbase.regionserver.StoreFile.createReader(StoreFile.java:602)
at org.apache.hadoop.hbase.regionserver.Store.commitFile(Store.java:791)
at org.apache.hadoop.hbase.regionserver.Store.access$500(Store.java:108)
at
org.apache.hadoop.hbase.regionserver.Store$StoreFlusherImpl.commit(Store.java:2256)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:1455)
... 8 more
INFO org.apache.hadoop.ipc.HBaseServer: Stopping server on 60020
Thanks,Sandeep.
> Date: Thu, 11 Jul 2013 18:47:17 +0530
> Subject: Re: Region server going down when deleting a table from HBase
> From: [email protected]
> To: [email protected]
>
> What is the full trace for DroppedSnapshotException ? The caused by trace?
>
> -Anoop-
>
> On Thu, Jul 11, 2013 at 6:38 PM, Sandeep L <[email protected]>wrote:
>
> > Hi,
> > We are using hbase-0.94.1 with hadoop-1.0.2.
> > Recently couple of time we faced a strange issue while deleting a table.
> > Whenever we are deleting a table from HBase shell using disable and drop
> > command at least one or two region servers are going down suddenly.
> > I observed following error message in region server log:
> > INFO org.apache.hadoop.hbase.regionserver.HRegionServer: STOPPED:
> > Unrecoverable exception while closing region
> > REGION_NAMEjava.lang.RuntimeException:
> > org.apache.hadoop.hbase.DroppedSnapshotException: region: REGION_NAME
> > Previously also we used to disable and drop tables, but we never seen this
> > kind of issue.
> >
> > Thanks,Sandeep.
