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Posted to dev@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2009/01/22 00:00:09 UTC

[jira] Updated: (HBASE-823) Concurrent "open mapfile reader" limit

     [ https://issues.apache.org/jira/browse/HBASE-823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack updated HBASE-823:
------------------------

         Priority: Blocker  (was: Major)
    Fix Version/s: 0.20.0

> Concurrent "open mapfile reader" limit
> --------------------------------------
>
>                 Key: HBASE-823
>                 URL: https://issues.apache.org/jira/browse/HBASE-823
>             Project: Hadoop HBase
>          Issue Type: Improvement
>            Reporter: stack
>            Priority: Blocker
>             Fix For: 0.20.0
>
>
> Over in HBASE-745, Luo Ning profiling found that the number of open Readers has direct impact on memory used.  This issue is about putting an upper bound on the number of open Readers doing something like a bounded pool w/ a LRU eviction policy.

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