ASF GitHub Bot updated ACCUMULO-4798:
    Labels: pull-request-available  (was: )

> 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
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.9.0, 2.0.0
> 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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