Does git blame take you to an issue with any reasoning as to why master jmx is turned off Ashish? St.Ack
On Fri, Apr 24, 2015 at 9:47 AM, Ashish Singhi <[email protected]> wrote: > Hi devs. > > I see that in all other code branches other than 0.98 we do not load > JMXListener for masters. > Here is the below code snippet from JMXListener class. > > {code} > if (env instanceof MasterCoprocessorEnvironment) { > LOG.error("JMXListener should not be loaded in Master Environment!"); > } else if (env instanceof RegionServerCoprocessorEnvironment) { > // running on RegionServer --since 0.99 HMaster is also a > HRegionServer > rmiRegistryPort = > conf.getInt("regionserver" + RMI_REGISTRY_PORT_CONF_KEY, > defRMIRegistryPort); > rmiConnectorPort = > conf.getInt("regionserver" + RMI_CONNECTOR_PORT_CONF_KEY, > rmiRegistryPort); > LOG.info("RegionServer rmiRegistryPort:" + rmiRegistryPort > + ",RegionServer rmiConnectorPort:" + rmiConnectorPort); > > } else if (env instanceof RegionCoprocessorEnvironment) { > LOG.error("JMXListener should not be loaded in Region Environment!"); > } > {code} > > How can one retrieve master metrics from JMX client ? As we have a > system like OM(operation management) which monitors master metrics > using JMX client. We used to retrieve these metrics successfully from > 0.98 code branch as there JMListener is loaded in both Master and > RegionServer environments. > > -- > Ashish Singhi >
