Thanks for the response, Jon. One more detail: the metrics2 classes in hadoop 1.0 and hadoop 2.0 are different. Alex is working on a shim layer to make the difference transparent. If we were to keep 0.96 metric (1) compatible, we would be maintaining 2.5 metric systems.
Cheers On Mon, Jul 9, 2012 at 9:28 AM, Jonathan Hsieh <[email protected]> wrote: > I'm ok if we moved solely to metrics2 in 0.96 and if we deprecated in 0.94. > > Jon. > > On Sat, Jul 7, 2012 at 7:23 AM, Ted Yu <[email protected]> wrote: > > > Hi, > > See the following comment for background: > > > > > https://issues.apache.org/jira/browse/HBASE-4050?focusedCommentId=13408679&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13408679 > > > > metrics2 framework is in both hadoop 1.0 and hadoop 2.0 > > We would like to migrate to metrics2 framework. But maintaining two > metrics > > frameworks in HBase is costly and results in lower readability. > > > > However, if you have cluster monitoring tool that depends on (old) > metrics > > framework, we want to give you smooth migration experience. > > > > Please provide your opinions on whether (old) metrics framework should be > > deprecated in 0.94 or in 0.96. > > > > Thanks > > > > > > -- > // Jonathan Hsieh (shay) > // Software Engineer, Cloudera > // [email protected] >
