[
https://issues.apache.org/jira/browse/HBASE-6116?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13400801#comment-13400801
]
Andrew Purtell commented on HBASE-6116:
---------------------------------------
bq. I'm going to do this again tomorrow on cluster compute instances. The
results should be cleaner.
I should have realized this earlier, but CC instances don't support instance
store volumes, only EBS. EBS is IMO a crappy storage subsystem, in my
experience instance store is about 2x slower than real hardware, but EBS can be
10x+ slower and highly variable. So this completes what I can do with EC2.
> 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, pipelined-vs-parallel-comparison.zip
>
>
> 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
