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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13989) Threshold for combined MemStore and BlockCache percentages is not checked
Date Mon, 29 Jun 2015 21:27:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14606442#comment-14606442
] 

Ted Yu commented on HBASE-13989:
--------------------------------

{code}
fht https://builds.apache.org/job/PreCommit-HBASE-Build/14605/consoleFull
Fetching the console output from the URL
Printing hanging tests
Printing Failing tests
Failing test : org.apache.hadoop.hbase.master.TestDistributedLogSplitting
{code}
The above test failure was observed elsewhere - not related to the patch.

Will commit soon if there is no further review.

> Threshold for combined MemStore and BlockCache percentages is not checked
> -------------------------------------------------------------------------
>
>                 Key: HBASE-13989
>                 URL: https://issues.apache.org/jira/browse/HBASE-13989
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>         Attachments: 13989-v1.txt, 13989-v2.txt
>
>
> In HeapMemoryManager#doInit():
> {code}
>     globalMemStorePercentMinRange = conf.getFloat(MEMSTORE_SIZE_MIN_RANGE_KEY,
>         globalMemStorePercent);
>     globalMemStorePercentMaxRange = conf.getFloat(MEMSTORE_SIZE_MAX_RANGE_KEY,
>         globalMemStorePercent);
> ...
>     if (globalMemStorePercent == globalMemStorePercentMinRange
>         && globalMemStorePercent == globalMemStorePercentMaxRange) {
>       return false;
>     }
> {code}
> If memory tuning is not specified, globalMemStorePercentMinRange and globalMemStorePercentMaxRange
would carry the value of globalMemStorePercent.
> This would make doInit() exit before checking the threshold for combined MemStore and
BlockCache percentages.



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