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From "Matthias J. Sax (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KAFKA-3619) State lock file handle leaks
Date Wed, 22 Feb 2017 01:02:44 GMT

     [ https://issues.apache.org/jira/browse/KAFKA-3619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matthias J. Sax updated KAFKA-3619:
-----------------------------------
    Affects Version/s:     (was: 0.10.0.0)

> State lock file handle leaks
> ----------------------------
>
>                 Key: KAFKA-3619
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3619
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>            Reporter: Greg Fodor
>            Assignee: Greg Fodor
>            Priority: Critical
>             Fix For: 0.10.0.0
>
>
> The .lock files in the state store directories do not seem to be having their file handles
freed (despite the locks being freed), so on a complex job the number of file handles in use
goes up rapidly as the locks are taken for the cleanup routine at the end of the thread run
loop.  Running lsof shows the number of open filehandles on the .lock file increasing rapidly
over time. In a separate test project, I reproduced the issue and determined that in order
for the filehandle to be relinquished the FileChannel instance must be properly closed. 
> PR:
> https://github.com/apache/kafka/pull/1267



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