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From "Vladimir Rodionov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14951) Make hbase.regionserver.maxlogs obsolete
Date Mon, 14 Dec 2015 19:01:46 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15056473#comment-15056473
] 

Vladimir Rodionov commented on HBASE-14951:
-------------------------------------------

{quote}
Where the *2 come from in the formula?
{quote}

Just to make sure that we do not trigger memstore flushes only because we reached the max
wal files limit. 

> Make hbase.regionserver.maxlogs obsolete
> ----------------------------------------
>
>                 Key: HBASE-14951
>                 URL: https://issues.apache.org/jira/browse/HBASE-14951
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>            Priority: Minor
>             Fix For: 2.0.0
>
>         Attachments: HBASE-14951-v1.patch, HBASE-14951-v2.patch
>
>
> There was a discussion in HBASE-14388 related to maximum number of log files. It was
an agreement that we should calculate this number in a code but still need to honor user's
setting. 
> Maximum number of log files now is calculated as following:
>  maxLogs = HEAP_SIZE * memstoreRatio * 2/ LogRollSize



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