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https://issues.apache.org/jira/browse/HBASE-25735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17316857#comment-17316857
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Michael Stack commented on HBASE-25735:
---------------------------------------
Shout if you want me to do something on this end [~apurtell]
> Add target Region to connection exceptions
> ------------------------------------------
>
> Key: HBASE-25735
> URL: https://issues.apache.org/jira/browse/HBASE-25735
> Project: HBase
> Issue Type: Bug
> Components: rpc
> Reporter: Michael Stack
> Assignee: Michael Stack
> Priority: Major
> Fix For: 3.0.0-alpha-1, 2.5.0, 2.4.3
>
>
> We spent a bit of time making it so exceptions included the remote host name.
> Looks like we can add the target Region name too with a bit of manipulation;
> will help figuring hot-spotting or problem Region on serverside. For
> example, here is what I was seeing recently on client-side when a RS was was
> timing out requests:
> {code}
> 2021-04-06T02:18:23.533Z, RpcRetryingCaller{globalStartTime=1617675482894,
> pause=100, maxAttempts=4}, org.apache.hadoop.hbase.ipc.CallTimeoutException:
> Call to ps0989.example.org/1.1.1.1:16020 failed on local exception:
> org.apache.hadoop.hbase.ipc.CallTimeoutException:
> Call[id=88369369,methodName=Get], waitTime=5006, rpcTimeout=5000
> at
> org.apache.hadoop.hbase.client.RpcRetryingCallerImpl.callWithRetries(RpcRetryingCallerImpl.java:145)
> at org.apache.hadoop.hbase.client.HTable.get(HTable.java:383)
> at org.apache.hadoop.hbase.client.HTable.get(HTable.java:357)
> ...
> Caused by: org.apache.hadoop.hbase.ipc.CallTimeoutException: Call to
> ps0989.bot.parsec.apple.com/17.58.114.206:16020 failed on local exception:
> org.apache.hadoop.hbase.ipc.CallTimeoutException:
> Call[id=88369369,methodName=Get], waitTime=5006, rpcTimeout=5000
> at org.apache.hadoop.hbase.ipc.IPCUtil.wrapException(IPCUtil.java:209)
> at
> org.apache.hadoop.hbase.ipc.AbstractRpcClient.onCallFinished(AbstractRpcClient.java:378)
> at
> org.apache.hadoop.hbase.ipc.AbstractRpcClient.access$100(AbstractRpcClient.java:89)
> at
> org.apache.hadoop.hbase.ipc.AbstractRpcClient$3.run(AbstractRpcClient.java:409)
> at
> org.apache.hadoop.hbase.ipc.AbstractRpcClient$3.run(AbstractRpcClient.java:405)
> at org.apache.hadoop.hbase.ipc.Call.setTimeout(Call.java:110)
> at
> org.apache.hadoop.hbase.ipc.RpcConnection$1.run(RpcConnection.java:136)
> at
> org.apache.hbase.thirdparty.io.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:672)
> at
> org.apache.hbase.thirdparty.io.netty.util.HashedWheelTimer$HashedWheelBucket.expireTimeouts(HashedWheelTimer.java:747)
> at
> org.apache.hbase.thirdparty.io.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:472)
> ... 1 more
> Caused by: org.apache.hadoop.hbase.ipc.CallTimeoutException:
> Call[id=88369369,methodName=Get], waitTime=5006, rpcTimeout=5000
> at
> org.apache.hadoop.hbase.ipc.RpcConnection$1.run(RpcConnection.java:137)
> ... 4 more
> {code}
> I wanted the region it was hitting. I wanted to know if it was a server
> problem or a Region issue. If clients only having issue w/ one Region, then I
> could focus on it.
> After the PR the exception (from another context) looks like this:
> {code}
> org.apache.hadoop.hbase.ipc.CallTimeoutException: Call to
> address=127.0.0.1:12345, regionInfo=hbase:meta,,1.1588230740 failed on local
> exception: org.apache.hadoop.hbase.ipc.CallTimeoutException: error
> ....
> {code}
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