[jira] [Updated] (HBASE-6116) Allow parallel HDFS writes for HLogs.

["Lars Hofhansl (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-6116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lars Hofhansl updated HBASE-6116:
---------------------------------

    Attachment: 6116-v1.txt

Initial patch, which includes HBASE-5954.
This also fixes building HBase trunk with Hadoop trunk (3.0.0-SNAPSHOT).

In order to test, HDFS-1783 needs to be applied to Hadoop (trunk) first.
Then build Hadoop with:
mvn -Pnative -Pdist -Dtar -DskipTests install
And then HBase with:
mvn -DskipTests -Dhadoop.profile=3.0 ...

Parallel writes can be enable in hbase-site.xml with:
    hbase.regionserver.wal.parallel.writes

Since this patch include HBASE-5954, durable sync can also be enabled:
    hbase.regionserver.wal.durable.sync
    hbase.regionserver.hfile.durable.sync

(all options can be set to "true")

@Andy: If your offer to do a quick test in EC2 still stands that'd be awesome!

                
> Allow parallel HDFS writes for HLogs.
> -------------------------------------
>
>                 Key: HBASE-6116
>                 URL: https://issues.apache.org/jira/browse/HBASE-6116
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>         Attachments: 6116-v1.txt
>
>
> In HDFS-1783 I adapted Dhrubas changes to be used in Hadoop trunk.
> This issue will include the necessary reflection changes to optionally enable this for the WALs in HBase.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira