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https://issues.apache.org/jira/browse/ACCUMULO-4798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith Turner reassigned ACCUMULO-4798:
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Assignee: Keith Turner
> Copying Stat in ZooCache is slow
> --------------------------------
>
> Key: ACCUMULO-4798
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4798
> Project: Accumulo
> Issue Type: Improvement
> 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 40m
> Remaining Estimate: 0h
>
> The ZooKeeper cache code caches Zookeeper stats. When a stat is requested
> from the cache it copies it. The ZK stat class offers no good way to copy
> other than serialize and deserialize. The code currently does this and its
> slow. All code in Accumulo only uses one field from stat, so it would be
> much better to create a simple class that has this one field and can quickly
> copy.
>
> The stat is used very frequently in the metadata cache code to check if a
> tserver still holds its lock.
>
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