Lars: Do you think 0.96 should only support metrics2 framework ? Cheers
On Mon, Jul 9, 2012 at 4:47 PM, lars hofhansl <[email protected]> wrote: > Let's not deprecate until the replacement is ready (including docs). > > -0 > > > -- Lars > > > ----- Original Message ----- > From: Elliott Clark <[email protected]> > To: [email protected] > Cc: > Sent: Monday, July 9, 2012 2:34 PM > Subject: Re: deprecating (old) metrics in favor of metrics2 framework > > HBASE-6323 has the first Metrics2 implementation that I've gotten to. We > will have to add lots of documentation around hadoop-metrics2.properties > and the jmx locations are not consistent, however Metrics2 is much nicer to > use for dynamic metrics. > > On Mon, Jul 9, 2012 at 12:28 PM, Ted Yu <[email protected]> wrote: > > > If I don't get objection by Friday the 13th @ mid night (PST), I will > > create a JIRA that marks HBase metric classes that depend on > > org.apache.hadoop.metrics.* deprecated. > > > > Thanks > > > > On Mon, Jul 9, 2012 at 9:35 AM, Ted Yu <[email protected]> wrote: > > > > > 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] > > >> > > > > > > > > > >
