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Kannan Muthukkaruppan commented on HBASE-6981: ---------------------------------------------- Ted: You are right. It is pretty much the same. Liyin is planning to take a look at this issue. > multiple commit logs per region server > -------------------------------------- > > Key: HBASE-6981 > URL: https://issues.apache.org/jira/browse/HBASE-6981 > Project: HBase > Issue Type: New Feature > Reporter: Kannan Muthukkaruppan > Assignee: Kannan Muthukkaruppan > > For write dominated workloads, the fact that we have only 1 commit log per > server artificially limits the aggregate throughput to that of one disk > (this is especially true if we do true FS level syncs on each datanode, or > even frequent intermittent FS level syncs as data is being written to each > block). > We could consider allowing a configurable number of commit logs per server > (perhaps something close to or slightly less than the number of disks per > server), and we could shard regions on the server, by maybe just a simple > modulo scheme, into those commit logs. > [A quick way to experiment with the same might be to run multiple region > server instances per server; but might be better operationally to package the > feature into a single region server.] -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira