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https://issues.apache.org/jira/browse/ACCUMULO-4782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith Turner resolved ACCUMULO-4782.
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Resolution: Fixed
> With many threads scanning seeing lock contention on SessionManager
> -------------------------------------------------------------------
>
> Key: ACCUMULO-4782
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4782
> Project: Accumulo
> Issue Type: Bug
> Affects Versions: 1.7.3, 1.8.1
> Reporter: Keith Turner
> Assignee: Keith Turner
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.9.0, 2.0.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> While profiling many threads doing small scans against accumulo, lock
> contention on the tablet servers SessionManager was high.
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