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Posted to issues@hbase.apache.org by "dhruba borthakur (JIRA)" <ji...@apache.org> on 2010/05/04 19:18:56 UTC
[jira] Commented: (HBASE-2467) Concurrent flushers in HLog sync
using HDFS-895
[ https://issues.apache.org/jira/browse/HBASE-2467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12863898#action_12863898 ]
dhruba borthakur commented on HBASE-2467:
-----------------------------------------
I would not support putting this on 0.20.5, especially because this is a performance fix. Isn't it posible to defer this to a new major release?
> Concurrent flushers in HLog sync using HDFS-895
> -----------------------------------------------
>
> Key: HBASE-2467
> URL: https://issues.apache.org/jira/browse/HBASE-2467
> Project: Hadoop HBase
> Issue Type: Improvement
> Components: regionserver
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.20.5, 0.21.0
>
> Attachments: hbase-2467.txt
>
>
> HDFS-895 changes hflush() to be able to run concurrently from multiple threads, where flushes can be concurrent with further writes to the same file.
> We need to rip out/amend the group commit code a bit to take advantage of this.
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