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Andrew Purtell commented on HBASE-6116: --------------------------------------- In my experience there is little difference in variability run to run on the same instances as opposed to two parallel runs started around the same time. EC2 is not a great platform for this kind of testing so it should be run on real hardware to see if the results are replicated there. Or I could try the so called cluster compute instances. They are expensive but given the result confirming it with those could be justified > 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