hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Nicolas Liochon <nkey...@gmail.com>
Subject Re: client timeout
Date Fri, 05 Dec 2014 08:41:15 GMT
fwiw "CallerDisconnectedException: Aborting call multi" means that:
- the query was under execution on the server
- the client reached its timeout and disconnected
- the server saw that and stopped the execution of the query.

So it's the consequence of a slow execution, not the cause.
It would worth checking how much time these queries usually take, plus all
the usual cause for slowness (disks issues? data locality?. May be the
multi are too big? A lot of hfiles to read? caches misses? and so on).




On Fri, Dec 5, 2014 at 1:05 AM, Ted Tuttle <ted@mentacapital.com> wrote:

> Sort of :(
>
> The server-side errors below started showing up on node5.  We took node5
> down and then they started on node7.  Then we brought back node5  and were
> still seeing the errors on node7.  So we bounced node7.  The errors went
> back to node5.  We bounced node5 a second time and that cleared the problem.
>
> We are back in working order now.
>
> And working hard on upgrading to v0.98
>
> From: lars hofhansl [mailto:larsh@apache.org]
> Sent: Thursday, December 04, 2014 3:42 PM
> To: user@hbase.apache.org
> Cc: Development
> Subject: Re: client timeout
>
> Only on that one region server? Weird. Does this persist when you bounce
> it?
>
>
>
> ________________________________
> From: Ted Tuttle <ted@mentacapital.com<mailto:ted@mentacapital.com>>
> To: lars hofhansl <larsh@apache.org<mailto:larsh@apache.org>>; "
> user@hbase.apache.org<mailto:user@hbase.apache.org>" <
> user@hbase.apache.org<mailto:user@hbase.apache.org>>
> Cc: Development <Development@mentacapital.com<mailto:
> Development@mentacapital.com>>
> Sent: Wednesday, December 3, 2014 1:21 PM
> Subject: RE: client timeout
>
> Still on v0.94.16
>
> We are seeing loads of these:
>
> 2014-12-03 12:28:32,696 ERROR
> org.apache.hadoop.hbase.regionserver.HRegionServer:
> org.apache.hadoop.hbase.ipc.CallerDisconnectedException: Aborting call
> multi(org.apache.hadoop.hbase.client.MultiAction@55428f05<mailto:
> org.apache.hadoop.hbase.client.MultiAction@55428f05><mailto:
> org.apache.hadoop.hbase.client.MultiAction@55428f05<mailto:
> org.apache.hadoop.hbase.client.MultiAction@55428f05>>), rpc version=1,
> client version=29, methodsFingerPrint=-540141542 from <ip>:<port>after
> 131914 ms, since caller disconnected
>         at
> org.apache.hadoop.hbase.ipc.HBaseServer$Call.throwExceptionIfCallerDisconnected(HBaseServer.java:436)
>         at
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextInternal(HRegion.java:3944)
>         at
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:3854)
>         at
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.next(HRegion.java:3835)
>         at
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.next(HRegion.java:3878)
>         at
> org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4804)
>         at
> org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:4777)
>         at
> org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:2194)
>         at
> org.apache.hadoop.hbase.regionserver.HRegionServer.multi(HRegionServer.java:3754)
>         at sun.reflect.GeneratedMethodAccessor36.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:606)
>         at
> org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:320)
>         at
> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1426)
>
>
> From: lars hofhansl [mailto:larsh@apache.org<mailto:larsh@apache.org>]
> Sent: Wednesday, December 03, 2014 11:31 AM
> To: user@hbase.apache.org<mailto:user@hbase.apache.org>
> Cc: Development
> Subject: Re: client timeout
>
> Bad disk or network?
>
> Anything in the logs (HBase, HDFS, and System logs)?
>
> HBase 0.94, still?
> The easiest way to just kill the region servers, the others will pick up
> the regions.
>
> -- Lars
>
> ________________________________
> From: Ted Tuttle <ted@mentacapital.com<mailto:ted@mentacapital.com
> ><mailto:ted@mentacapital.com<mailto:ted@mentacapital.com>>>
> To: "user@hbase.apache.org<mailto:user@hbase.apache.org><mailto:
> user@hbase.apache.org<mailto:user@hbase.apache.org>>" <
> user@hbase.apache.org<mailto:user@hbase.apache.org><mailto:
> user@hbase.apache.org<mailto:user@hbase.apache.org>>>
> Cc: Development <Development@mentacapital.com<mailto:
> Development@mentacapital.com><mailto:Development@mentacapital.com<mailto:
> Development@mentacapital.com>>>
>
>
> Sent: Wednesday, December 3, 2014 7:13 AM
> Subject: client timeout
>
> Hello-
>
> We are seeing recurring timeouts in communications with one our RSs.  The
> error we see in our logs is:
>
> Caused by: java.net.SocketTimeoutException: Call to <rs host>./<rs
> ip>:<port> failed on socket timeout exceptio\
> n: java.net.SocketTimeoutException: 120000 millis timeout while waiting
> for channel to be ready for read. ch : java.nio.channels.S\
> ocketChannel[connected local=/<client ip>:<port> remote=<rs host>./<rs
> ip>:<port>]
>         at
> org.apache.hadoop.hbase.ipc.HBaseClient.wrapException(HBaseClient.java:1043)
>         at
> org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:1016)
>         at
> org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:87)
>         at com.sun.proxy.$Proxy9.multi(Unknown Source)
>         at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3$1.call(HConnectionManager.java:1537)
>         at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3$1.call(HConnectionManager.java:1535)
>         at
> org.apache.hadoop.hbase.client.ServerCallable.withoutRetries(ServerCallable.java:229)
>         at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3.call(HConnectionManager.java:1544)
>         at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3.call(HConnectionManager.java:1532)
>         at
> java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:166)
>         at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>         at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>         at java.lang.Thread.run(Thread.java:724)
>
> Any ideas on what could be wrong w/ this RS?  The RS is not unusually busy.
>
> Thanks,
> Ted
>
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message