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https://issues.apache.org/jira/browse/ACCUMULO-4805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16357765#comment-16357765
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Keith Turner edited comment on ACCUMULO-4805 at 2/15/18 4:55 PM:
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The changes I made in #380 do not completely remove the contention, they just
lessened the amount of time spent doing work while the lock is still held.
was (Author: kturner):
The changes I made in #380 do not completely remove the contention, they just
lessened the amount of content.
> Seeing thread contention on FileManager
> ---------------------------------------
>
> Key: ACCUMULO-4805
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4805
> Project: Accumulo
> Issue Type: Bug
> Reporter: Keith Turner
> Assignee: Keith Turner
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.9.0, 2.0.0
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> Accumulo has a tablet server wide cache of open files. Accessing this cache
> obtains a global lock. In profiling, I am seeing contention on this lock.
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