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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4224) Need a flush by regionserver rather than by table option
Date Thu, 18 Aug 2011 07:04:27 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13086843#comment-13086843
] 

stack commented on HBASE-4224:
------------------------------

We need by regionserver because doing it by table, its not possible to control how much flush
is done.  Imagine cluster has one table only.  If you flush it, then all regionservers all
flush at same time killing any other server going on concurrently because of the i/o load
on hdfs.  If you could do it by regionserver, you'd have some means of doing other than a
big-bang flush, and so on.

> Need a flush by regionserver rather than by table option
> --------------------------------------------------------
>
>                 Key: HBASE-4224
>                 URL: https://issues.apache.org/jira/browse/HBASE-4224
>             Project: HBase
>          Issue Type: Bug
>          Components: shell
>            Reporter: stack
>
> This evening needed to clean out logs on the cluster.  logs are by regionserver.  to
let go of logs, we need to have all edits emptied from memory.  only flush is by table or
region.  We need to be able to flush the regionserver.  Need to add this.

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