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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7515) Store.loadStoreFiles should close opened files if there's an exception
Date Tue, 08 Jan 2013 23:18:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13547392#comment-13547392
] 

Ted Yu commented on HBASE-7515:
-------------------------------

I looked at storeFile.createReader call. My understanding is that the exception from the Callable
would be delivered when get() is called.
Please take a look at the example in:
http://docs.oracle.com/javase/1.5.0/docs/api/java/util/concurrent/ExecutorCompletionService.html
                
> Store.loadStoreFiles should close opened files if there's an exception
> ----------------------------------------------------------------------
>
>                 Key: HBASE-7515
>                 URL: https://issues.apache.org/jira/browse/HBASE-7515
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.3
>            Reporter: Jean-Daniel Cryans
>            Assignee: Ted Yu
>             Fix For: 0.96.0, 0.94.5
>
>         Attachments: 7515.txt, 7515-v2.txt, 7515-v3.txt
>
>
> Related to HBASE-7513. If a RS is able to open a few store files in {{Store.loadStoreFiles}}
but one of them fails like in 7513, the opened files won't be closed and file descriptors
will remain in a CLOSED_WAIT state.
> The situation we encountered is that over the weekend one region was bounced between
>100 region servers and eventually they all started dying on "Too many open files".

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