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https://issues.apache.org/jira/browse/OAK-1530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13939383#comment-13939383
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Jukka Zitting commented on OAK-1530:
------------------------------------
OK, thanks for the info, such external access seems like the best explanation
for these warnings. I guess we should catch such exceptions and retry the
{{force()}} call a bit later.
> TarMK thread logs warning
> -------------------------
>
> Key: OAK-1530
> URL: https://issues.apache.org/jira/browse/OAK-1530
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: core, segmentmk
> Affects Versions: 0.18
> Environment: Windows 7, JDK 1.7.0_51 64 Bit
> Reporter: Marcel Reutegger
> Priority: Minor
>
> From time to time I see warnings from the TarMK flush thread. I'm not sure if
> this is caused by my environment. In any case it would be good to at least
> know why it happens and then fix or document it.
> {noformat}
> 12.03.2014 10:54:45.752 *WARN* [TarMK flush thread: repository]
> org.apache.jackrabbit.oak.plugins.segment.file.FileStore
> Failed to flush the TarMK at repository
> java.io.IOException: The process cannot access the file because another
> process has locked a portion of the file
> at java.nio.MappedByteBuffer.force0(Native Method)
> at java.nio.MappedByteBuffer.force(MappedByteBuffer.java:203)
> at
> org.apache.jackrabbit.oak.plugins.segment.file.MappedAccess.flush(MappedAccess.java:73)
> at
> org.apache.jackrabbit.oak.plugins.segment.file.TarFile.flush(TarFile.java:181)
> at
> org.apache.jackrabbit.oak.plugins.segment.file.FileStore.flush(FileStore.java:225)
> at
> org.apache.jackrabbit.oak.plugins.segment.file.FileStore$1.run(FileStore.java:196)
> at java.lang.Thread.run(Thread.java:744)
> {noformat}
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