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https://issues.apache.org/jira/browse/ACCUMULO-1085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13599308#comment-13599308
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Keith Turner commented on ACCUMULO-1085:
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bq. I'm thinking of putting this in 1.5. Someone talk me out of it.
When walogs are recovered, they are immediately compacted. This is done to
keep from running out of memory, in the case where multiple large in memory
maps need to be recovered. Having multiple threads doing log recovery could
possibly exhaust memory. The code that does recovery would need to defend
against this in some way.
> make the number of threads for assignment configurable
> ------------------------------------------------------
>
> Key: ACCUMULO-1085
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1085
> Project: Accumulo
> Issue Type: Improvement
> Components: tserver
> Reporter: Eric Newton
> Assignee: Keith Turner
> Fix For: 1.6.0
>
> Attachments: ACCUMULO-1085.patch
>
>
> Log recoveries from sorted logs take considerable time: run them in parallel
> with more assignment threads.
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