org.apache.hadoop.hbase.ipc
Class HBaseRpcMetrics

java.lang.Object
  extended by org.apache.hadoop.hbase.ipc.HBaseRpcMetrics
All Implemented Interfaces:
org.apache.hadoop.metrics.Updater

public class HBaseRpcMetrics
extends Object
implements org.apache.hadoop.metrics.Updater

This class is for maintaining the various RPC statistics and publishing them through the metrics interfaces. This also registers the JMX MBean for RPC.

This class has a number of metrics variables that are publicly accessible; these variables (objects) have methods to update their values; for example:

rpcQueueTime.inc(time)


Field Summary
 Map<String,org.apache.hadoop.metrics.util.MetricsTimeVaryingRate> metricsList
           
 org.apache.hadoop.metrics.util.MetricsTimeVaryingRate rpcProcessingTime
           
 org.apache.hadoop.metrics.util.MetricsTimeVaryingRate rpcQueueTime
          The metrics variables are public: - they can be set directly by calling their set/inc methods -they can also be read directly - e.g.
 
Constructor Summary
HBaseRpcMetrics(String hostName, String port, HBaseServer server)
           
 
Method Summary
 void doUpdates(org.apache.hadoop.metrics.MetricsContext context)
          Push the metrics to the monitoring subsystem on doUpdate() call.
 void shutdown()
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

rpcQueueTime

public org.apache.hadoop.metrics.util.MetricsTimeVaryingRate rpcQueueTime
The metrics variables are public: - they can be set directly by calling their set/inc methods -they can also be read directly - e.g. JMX does this.


rpcProcessingTime

public org.apache.hadoop.metrics.util.MetricsTimeVaryingRate rpcProcessingTime

metricsList

public Map<String,org.apache.hadoop.metrics.util.MetricsTimeVaryingRate> metricsList
Constructor Detail

HBaseRpcMetrics

public HBaseRpcMetrics(String hostName,
                       String port,
                       HBaseServer server)
Method Detail

doUpdates

public void doUpdates(org.apache.hadoop.metrics.MetricsContext context)
Push the metrics to the monitoring subsystem on doUpdate() call.

Specified by:
doUpdates in interface org.apache.hadoop.metrics.Updater

shutdown

public void shutdown()


Copyright © 2008 The Apache Software Foundation