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Posted to issues@ignite.apache.org by "Lev Agafonov (Jira)" <ji...@apache.org> on 2019/09/10 12:14:00 UTC
[jira] [Issue Comment Deleted] (IGNITE-12032) Server node prints
exception when ODBC driver disconnects
[ https://issues.apache.org/jira/browse/IGNITE-12032?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lev Agafonov updated IGNITE-12032:
----------------------------------
Comment: was deleted
(was: Hello!
I'd like to work on this ticket. Could you please assign it to me?)
> Server node prints exception when ODBC driver disconnects
> ---------------------------------------------------------
>
> Key: IGNITE-12032
> URL: https://issues.apache.org/jira/browse/IGNITE-12032
> Project: Ignite
> Issue Type: Bug
> Components: odbc
> Affects Versions: 2.7.5
> Reporter: Evgenii Zhuravlev
> Priority: Major
> Labels: newbie, usability
> Fix For: 2.8
>
>
> Whenever a process using ODBC clients is finished, it's printing in the
> node logs this exception:
> {code:java}
> *[07:45:19,559][SEVERE][grid-nio-worker-client-listener-1-#30][ClientListenerProcessor]
> Failed to process selector key [s
> es=GridSelectorNioSessionImpl [worker=ByteBufferNioClientWorker
> [readBuf=java.nio.HeapByteBuffer[pos=0 lim=8192 cap=8192
> ], super=AbstractNioClientWorker [idx=1, bytesRcvd=0, bytesSent=0,
> bytesRcvd0=0, bytesSent0=0, select=true, super=GridWo
> rker [name=grid-nio-worker-client-listener-1, igniteInstanceName=null,
> finished=false, heartbeatTs=1564289118230, hashCo
> de=1829856117, interrupted=false,
> runner=grid-nio-worker-client-listener-1-#30]]], writeBuf=null,
> readBuf=null, inRecove
> ry=null, outRecovery=null, super=GridNioSessionImpl
> [locAddr=/0:0:0:0:0:0:0:1:10800, rmtAddr=/0:0:0:0:0:0:0:1:63697, cre
> ateTime=1564289116225, closeTime=0, bytesSent=1346, bytesRcvd=588,
> bytesSent0=0, bytesRcvd0=0, sndSchedTime=156428911623
> 5, lastSndTime=1564289116235, lastRcvTime=1564289116235, readsPaused=false,
> filterChain=FilterChain[filters=[GridNioAsyn
> cNotifyFilter, GridNioCodecFilter [parser=ClientListenerBufferedParser,
> directMode=false]], accepted=true, markedForClos
> e=false]]]
> java.io.IOException: An existing connection was forcibly closed by the
> remote host
> at sun.nio.ch.SocketDispatcher.read0(Native Method)
> at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43)
> at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
> at sun.nio.ch.IOUtil.read(IOUtil.java:197)
> at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$ByteBufferNioClientWorker.processRead(GridNioServer.java:11
> 04)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.processSelectedKeysOptimized(GridNi
> oServer.java:2389)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:215
> 6)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1797)
> at
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120)
> at java.lang.Thread.run(Thread.java:748)*
> {code}
> It's absolutely normal behavior when ODBC client disconnects from the node, so, we shouldn't print exception in the log. We should replace it with something like INFO message about ODBC client disconnection.
> Thread from user list: http://apache-ignite-users.70518.x6.nabble.com/exceptions-in-Ignite-node-when-a-thin-client-process-ends-td28970.html
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