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https://issues.apache.org/jira/browse/ACCUMULO-4458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15491763#comment-15491763
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Josh Elser commented on ACCUMULO-4458:
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Maybe related to ACCUMULO-3033 too?
> lock contention around configuration settings impacts tablet server
> performance
> -------------------------------------------------------------------------------
>
> Key: ACCUMULO-4458
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4458
> Project: Accumulo
> Issue Type: Bug
> Components: tserver
> Affects Versions: 1.7.1, 1.8.0
> Reporter: Sean Busbey
> Assignee: Sean Busbey
> Priority: Critical
> Fix For: 1.7.3, 1.8.1, 2.0.0
>
>
> While investigating a pretty severe performance regression comparing YCSB
> against 1.6 and 1.7, I found a fair bit of lock contention around getting
> configuration values. This was improved by ACCUMULO-4388, but various threads
> eventually all started contending on the configuration values expected from
> the site xml files.
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