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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-6912) SSTableReader.isReplaced does not allow for safe resource cleanup
Date Wed, 26 Mar 2014 14:03:18 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13947921#comment-13947921
] 

Jonathan Ellis edited comment on CASSANDRA-6912 at 3/26/14 2:02 PM:
--------------------------------------------------------------------

[~thobbs]] to review


was (Author: jbellis):
[~krummas] to review

> SSTableReader.isReplaced does not allow for safe resource cleanup
> -----------------------------------------------------------------
>
>                 Key: CASSANDRA-6912
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6912
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Benedict
>            Assignee: Benedict
>             Fix For: 2.1 beta2
>
>
> There are a number of possible race conditions on resource cleanup from the use of cloneWithNewSummarySamplingLevel,
because the replacement sstable can be itself replaced/obsoleted while the prior sstable is
still referenced (this is actually quite easy with compaction, but can happen in other circumstances
less commonly).



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