[ https://issues.apache.org/jira/browse/HBASE-18409?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ronald Macmaster updated HBASE-18409: ------------------------------------- Issue Type: Test (was: Bug) > Migrate Client Metrics from codahale to hbase-metrics > ----------------------------------------------------- > > Key: HBASE-18409 > URL: https://issues.apache.org/jira/browse/HBASE-18409 > Project: HBase > Issue Type: Test > Components: Client, java, metrics > Affects Versions: 2.0.0-alpha-1 > Reporter: Ronald Macmaster > Labels: newbie > Original Estimate: 168h > Remaining Estimate: 168h > > Currently, the metrics for hbase-client are tailored for reporting via a > client-side JMX server. > The MetricsConnection handles the metrics management and reporting via the > metrics platform from codahale. > This approach worked well for hbase-1.3.1 when the metrics platform was still > relatively young, but it could be improved by using the new > hbase-metrics-api. > Now that we have an actual hbase-metrics-api that master, regionserver, > zookeeper, and other daemons use, it would be good to also allow the client > to leverage the metrics-api. > Then, the client could also report its metrics via Hadoop's metrics2 if > desired or through another platform that utilizes the hbase-metrics-api. > If left alone, client metrics will continue to be only barely visible through > a client-side JMX server. > The migration to the new metrics-api could be done by simply changing the > Metrics data types from codahale types to hbase-metrics types without > changing the metrics signatures of MetricsConnection unless completely > necessary. > The codahale MetricsRegistry would also have to be exchanged for a > hbase-metrics MetricsRegistry. > I found this to be a necessary change after attempting to implement my own > Reporter to use within the MetricsConnection class. > I was attempting to create a HadoopMetrics2Reporter that extends the codahale > ScheduledReporter and reports the MetricsConnection metrics to Hadoop's > metrics2 system. > The already existing infrastructure in the hbase-metrics and > hbase-metrics-api projects could be easily leveraged for a cleaner solution. > If completed successfully, users could instead access their client-side > metrics through the hbase-metrics-api. -- This message was sent by Atlassian JIRA (v6.4.14#64029)