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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-3008) Memstore.updateColumnValue passes wrong flag to heapSizeChange
Date Sat, 18 Sep 2010 15:58:33 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12911036#action_12911036
] 

stack commented on HBASE-3008:
------------------------------

+1

> Memstore.updateColumnValue passes wrong flag to heapSizeChange
> --------------------------------------------------------------
>
>                 Key: HBASE-3008
>                 URL: https://issues.apache.org/jira/browse/HBASE-3008
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>             Fix For: 0.90.0
>
>         Attachments: HBASE-3008.patch
>
>
> Memstore.updateColumnValue passes the wrong flag to heapSizeChange, making it so that
the size keeps growing while the actual size is probably the same. For example, in our production
environment we see tables that only take ICVs doing flushes of a few KBs when it thinks there's
64MB in:
> {noformat}
> Started memstore flush for region somecountingtable,,1248719998664.121282795. Current
region memstore size 64.0
> Added hdfs://borg9:9000/hbase/somecountingtable/121282795/counter/3564459650504019443,
entries=905, sequenceid=72504291507, 
> memsize=183.3k, filesize=18.5k to somecountingtable,,1248719998664.121282795
> {noformat}

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