[jira] [Updated] (IGNITE-3197) OverlappingFileLockException in marshaller context

["Valentin Kulichenko (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IGNITE-3197?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Valentin Kulichenko updated IGNITE-3197:
----------------------------------------
    Priority: Minor  (was: Major)

> OverlappingFileLockException in marshaller context
> --------------------------------------------------
>
>                 Key: IGNITE-3197
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3197
>             Project: Ignite
>          Issue Type: Bug
>          Components: general
>    Affects Versions: 1.6
>            Reporter: Valentin Kulichenko
>            Priority: Minor
>              Labels: important
>             Fix For: 1.7
>
>
> {{MarshallerContextImpl}} uses static locks to avoid writing to the same file concurrently. But if Ignite is running embedded in managed environment (e.g., application server), it's possible that there will be two clients loaded by different  class loaders. In this case they will not share these static locks and therefore they can try to acquire the file lock for the same file, causing the {{OverlappingFileLockException}}:
> {noformat}
> [#|2016-05-17T08:02:21.950+0100|SEVERE|glassfish3.1.2|javax.enterprise.system.std.com.sun.enterprise.server.logging|_ThreadID=291;_ThreadName=Thread-2;|java.nio.channels.OverlappingFileLockException
>  at sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255)
>  at sun.nio.ch.SharedFileLockTable.add(FileLockTable.java:152)
>  at sun.nio.ch.FileChannelImpl.lock(FileChannelImpl.java:1011)
>  at org.apache.ignite.internal.MarshallerContextImpl$ContinuousQueryListener.onUpdated(MarshallerContextImpl.java:239)
>  at org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.notifyCallback(CacheContinuousQueryHandler.java:655)
>  at org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.processNotification(GridContinuousProcessor.java:967)
>  at org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.access$1900(GridContinuousProcessor.java:94)
>  at org.apache.ignite.internal.processors.continuous.GridContinuousProcessor$8.onMessage(GridContinuousProcessor.java:612)
>  at org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1058)
>  at org.apache.ignite.internal.managers.communication.GridIoManager.access$1600(GridIoManager.java:104)
>  at org.apache.ignite.internal.managers.communication.GridIoManager$GridCommunicationMessageSet.unwind(GridIoManager.java:2295)
>  at org.apache.ignite.internal.managers.communication.GridIoManager.unwindMessageSet(GridIoManager.java:1018)
>  at org.apache.ignite.internal.managers.communication.GridIoManager.access$1900(GridIoManager.java:104)
>  at org.apache.ignite.internal.managers.communication.GridIoManager$6.run(GridIoManager.java:987)
>  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>  at java.lang.Thread.run(Thread.java:745)
> |#]
> {noformat}
> It's actually harmless, but the logs are flooded with the errors.



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