[infinispan-issues] [JBoss JIRA] Resolved: (ISPN-488) add a retry to hotrod operations

[Mircea Markus (JIRA)]

     [ https://jira.jboss.org/browse/ISPN-488?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mircea Markus resolved ISPN-488.
--------------------------------

    Resolution: Done


solved, unit test added as well (see retry package).

> add a retry to hotrod operations 
> ---------------------------------
>
>                 Key: ISPN-488
>                 URL: https://jira.jboss.org/browse/ISPN-488
>             Project: Infinispan
>          Issue Type: Feature Request
>          Components: Cache Server
>    Affects Versions: 4.1.0.BETA1, 4.1.0.BETA2
>            Reporter: Mircea Markus
>            Assignee: Mircea Markus
>             Fix For: 4.1.0.CR1
>
>
> From an email from Galder:
> Hi Mircea,
> I'm playing around with Hot Rod client/server for JUDCon demo and I've
> found this. The demo consists of:
> 1. Start a server
> 2. Connect with client and do a put
> 3. Make several get calls on that server
> 4. Start a new node, clustered with replication and state transfer
> on.
> 5. Make several calls, the calls are being load balanced in round
> robin fashion.
> 6. Shutdown the first node and make a get call. This throws:
> Exception in thread "main" HotRodServerException{messageId=0,
> errorStatusCode=0}
> org.infinispan.client.hotrod.exceptions.TransportException:
> java.io.IOException: Broken pipe
> 	at
> org.infinispan.client.hotrod.impl.transport.VHelper.writeVLong(VHelper.java:48)
> 	at
> org.infinispan.client.hotrod.impl.transport.tcp.TcpTransport.writeVLong(TcpTransport.java:57)
> 	at
> org.infinispan.client.hotrod.impl.protocol.HotRodOperationsHelper.writeHeader(HotRodOperationsHelper.java:30)
> 	at
> org.infinispan.client.hotrod.impl.protocol.HotRodOperationsImpl.sendKeyOperation(HotRodOperationsImpl.java:256)
> 	at
> org.infinispan.client.hotrod.impl.protocol.HotRodOperationsImpl.get(HotRodOperationsImpl.java:39)
> 	at
> org.infinispan.client.hotrod.impl.RemoteCacheImpl.get(RemoteCacheImpl.java:276)
> 	at replication.GetOnReadLoop$.main(GetOnReadLoop.scala:19)
> 	at replication.GetOnReadLoop.main(GetOnReadLoop.scala)
> Caused by: java.io.IOException: Broken pipe
> 	at sun.nio.ch.FileDispatcher.write0(Native Method)
> 	at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:29)
> 	at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:104)
> 	at sun.nio.ch.IOUtil.write(IOUtil.java:75)
> 	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:334)
> 	at java.nio.channels.Channels.write(Channels.java:60)
> 	at java.nio.channels.Channels.access$000(Channels.java:47)
> 	at java.nio.channels.Channels$1.write(Channels.java:134)
> 	at java.io.OutputStream.write(OutputStream.java:58)
> 	at java.nio.channels.Channels$1.write(Channels.java:115)
> 	at
> org.infinispan.io.UnsignedNumeric.writeUnsignedLong(UnsignedNumeric.java:134)
> 	at
> org.infinispan.client.hotrod.impl.transport.VHelper.writeVLong(VHelper.java:46)
> 	... 7 more
> Shouldn't have this been swallowed by the client and shouldn't have it
> tried on the other node?
> This happens if a server shuts down. After a failure the connection is cleaned.
> A workaround for this should be "testOnBorrow" which would first test the connection when fetching it from the server. 

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