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https://issues.apache.org/jira/browse/ACCUMULO-1923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13858928#comment-13858928
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Josh Elser commented on ACCUMULO-1923:
--------------------------------------
This appears to be an issue across a couple of different places and I don't
want it to get missed
> Ensure ZK instances closed correctly
> ------------------------------------
>
> Key: ACCUMULO-1923
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1923
> Project: Accumulo
> Issue Type: Bug
> Components: client
> Environment: development single node, hadoop 2.2,
> Reporter: Eric Newton
> Assignee: Bill Havanki
> Priority: Critical
> Fix For: 1.4.5, 1.5.1, 1.6.0
>
>
> Was: "warning at the end of a MapReduce job"
> Ensure that ZK instances are closed where opened across the Accumulo
> codebase. This is an expansion of the original ticket scope, whose
> description is below.
> Original Description:
> While running the randomwalk tests I saw this at the end of a map/reduce job:
> {noformat}
> 22 16:56:30,583 [client.ZooKeeperInstance] WARN : ZooKeeperInstance being
> cleaned up without being closed. Please remember to call close() before
> dereferencing to clean up threads.
> {noformat}
> This came just after the warning:
> {noformat}
> 22 16:56:31,742 [sequential.MapRedVerify] DEBUG: Dropping table:
> sequential_hostname_1385157013877_MR
> {noformat}
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