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From "Keith Turner (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-1409) Make MiniAccumuloCluster support native maps
Date Sat, 20 Jul 2013 16:22:48 GMT


Keith Turner commented on ACCUMULO-1409:

bq. the only way I can guarantee the integration tests don't time out is if I enable the native
maps with "-P native".

Interesting, I wonder if this is because JavaGC is avoided and/or the native maps are faster
at sorting.  

So native map support has recently been added to MAC.   I have taken a quick look at the code,
but not recently.  It seems like native maps can be used when Accumulo itself uses MAC.  However
what about the case where an end user uses MAC?  Can this be supported?  It seems like supporting
this would require putting jars maven repos that contain the shared libs.
> Make MiniAccumuloCluster support native maps
> --------------------------------------------
>                 Key: ACCUMULO-1409
>                 URL:
>             Project: Accumulo
>          Issue Type: Sub-task
>            Reporter: Keith Turner
>            Assignee: Corey J. Nolet
>              Labels: proposal
>             Fix For: 1.6.0
> If a user sets up a single node accumulo instance and uses it for testing, then w/o native
maps the performance will not be as good as it could.  I did some testing of the new GC in
java 7, along the way I noticed a significant difference between the native map and java map.

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