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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-17276) Reduce log spam from WrongRegionException in large multi()'s
Date Wed, 07 Dec 2016 18:14:58 GMT

     [ https://issues.apache.org/jira/browse/HBASE-17276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Josh Elser updated HBASE-17276:
-------------------------------
    Status: Patch Available  (was: Open)

> Reduce log spam from WrongRegionException in large multi()'s
> ------------------------------------------------------------
>
>                 Key: HBASE-17276
>                 URL: https://issues.apache.org/jira/browse/HBASE-17276
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Minor
>             Fix For: 2.0.0
>
>         Attachments: HBASE-17276.001.patch
>
>
> The following spam drives me up a wall in the regionserver log:
> {noformat}
> 2016-12-05 05:53:05,085 WARN  [RpcServer.FifoWFPBQ.default.handler=29,queue=2,port=16020]
regionserver.HRegion: Batch mutation had a row that does not belong to this region
> org.apache.hadoop.hbase.regionserver.WrongRegionException: Requested row out of range
for doMiniBatchMutation on HRegion IntegrationTestReplicationSinkRestart,L\xCC\xCC\xCC\xCC\xCC\xCC\xC8,1480916713541.caab3310166699287b54b72b35b29431.,
startKey='L\xCC\xCC\xCC\xCC\xCC\xCC\xC8', getEndKey()='Y\x99\x99\x99\x99\x99\x99\x94', row='\x0C\xD2\xA5\xA3\x99\xC7\xE0Q!\x15^\xA6\x90\x1E\xA3\xAD'
> 	at org.apache.hadoop.hbase.regionserver.HRegion.checkRow(HRegion.java:5211)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.checkAndPrepareMutation(HRegion.java:3879)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchMutation(HRegion.java:3040)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2933)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2875)
> 	at org.apache.hadoop.hbase.regionserver.RSRpcServices.doBatchOp(RSRpcServices.java:717)
> 	at org.apache.hadoop.hbase.regionserver.RSRpcServices.doNonAtomicRegionMutation(RSRpcServices.java:679)
> 	at org.apache.hadoop.hbase.regionserver.RSRpcServices.multi(RSRpcServices.java:2056)
> 	at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:32303)
> 	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2141)
> 	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:112)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:187)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:167)
> 2016-12-05 05:53:05,086 WARN  [RpcServer.FifoWFPBQ.default.handler=29,queue=2,port=16020]
regionserver.HRegion: Batch mutation had a row that does not belong to this region
> org.apache.hadoop.hbase.regionserver.WrongRegionException: Requested row out of range
for doMiniBatchMutation on HRegion IntegrationTestReplicationSinkRestart,L\xCC\xCC\xCC\xCC\xCC\xCC\xC8,1480916713541.caab3310166699287b54b72b35b29431.,
startKey='L\xCC\xCC\xCC\xCC\xCC\xCC\xC8', getEndKey()='Y\x99\x99\x99\x99\x99\x99\x94', row='\x0E\xE7\xFA[\x8D\x93;\xF4\xC7F\xF9\x85\x84\x85\xF3\x0E'
> 	at org.apache.hadoop.hbase.regionserver.HRegion.checkRow(HRegion.java:5211)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.checkAndPrepareMutation(HRegion.java:3879)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchMutation(HRegion.java:3040)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2933)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2875)
> 	at org.apache.hadoop.hbase.regionserver.RSRpcServices.doBatchOp(RSRpcServices.java:717)
> 	at org.apache.hadoop.hbase.regionserver.RSRpcServices.doNonAtomicRegionMutation(RSRpcServices.java:679)
> 	at org.apache.hadoop.hbase.regionserver.RSRpcServices.multi(RSRpcServices.java:2056)
> 	at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:32303)
> 	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2141)
> 	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:112)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:187)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:167)
> 2016-12-05 05:53:05,087 WARN  [RpcServer.FifoWFPBQ.default.handler=29,queue=2,port=16020]
regionserver.HRegion: Batch mutation had a row that does not belong to this region
> org.apache.hadoop.hbase.regionserver.WrongRegionException: Requested row out of range
for doMiniBatchMutation on HRegion IntegrationTestReplicationSinkRestart,L\xCC\xCC\xCC\xCC\xCC\xCC\xC8,1480916713541.caab3310166699287b54b72b35b29431.,
startKey='L\xCC\xCC\xCC\xCC\xCC\xCC\xC8', getEndKey()='Y\x99\x99\x99\x99\x99\x99\x94', row='\x16-\xFC\x99\xF5c\x08\xFA\x1D\x84\x86\xD2\x18\xB1\x03q'
> 	at org.apache.hadoop.hbase.regionserver.HRegion.checkRow(HRegion.java:5211)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.checkAndPrepareMutation(HRegion.java:3879)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchMutation(HRegion.java:3040)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2933)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:2875)
> 	at org.apache.hadoop.hbase.regionserver.RSRpcServices.doBatchOp(RSRpcServices.java:717)
> 	at org.apache.hadoop.hbase.regionserver.RSRpcServices.doNonAtomicRegionMutation(RSRpcServices.java:679)
> 	at org.apache.hadoop.hbase.regionserver.RSRpcServices.multi(RSRpcServices.java:2056)
> 	at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:32303)
> 	at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2141)
> 	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:112)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:187)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:167)
> {noformat}
> With adequate replication traffic that is delayed or just slow, you can have a batch
of 64MB of updates to a Region which are all on a different RegionServer by the time the RS
processes it.
> In a run of IntegrationTestReplication that is particularly "slow"/oversaturated, I saw
1.591M log lines taken up with this message out of a total number of line of 1.597M lines
(99.6% of the log). I propose that after the first WrongRegionException we see in {{doMiniBatchMutation}},
we stop printing out the rest of the stacktrace (save on 13 lines for every occurrence).



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