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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-1220) Don't reopen file if already open when updating readers underneath scanners
Date Mon, 09 Mar 2009 23:50:50 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-1220:
-------------------------

    Attachment: 1220.patch

Pass sequenceid to registered updateReaders so they can be selective about what new Readers
to open.

> Don't reopen file if already open when updating readers underneath scanners
> ---------------------------------------------------------------------------
>
>                 Key: HBASE-1220
>                 URL: https://issues.apache.org/jira/browse/HBASE-1220
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>             Fix For: 0.19.1, 0.20.0
>
>         Attachments: 1220.patch
>
>
> Doing this is costly in scenario where where many scanners and many concurrent updates.

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