org.apache.cassandra.metrics

Class CommitLogMetrics

java.lang.Object

org.apache.cassandra.metrics.CommitLogMetrics

public class CommitLogMetrics
extends java.lang.Object

Metrics for commit log

Field Summary

Fields

Modifier and Type	Field and Description
com.codahale.metrics.Gauge<java.lang.Long>	completedTasks Number of completed tasks
static MetricNameFactory	factory
com.codahale.metrics.Gauge<java.lang.Long>	pendingTasks Number of pending tasks
com.codahale.metrics.Gauge<java.lang.Long>	totalCommitLogSize Current size used by all the commit log segments
com.codahale.metrics.Timer	waitingOnCommit The time spent waiting on CL sync; for Periodic this is only occurs when the sync is lagging its sync interval
com.codahale.metrics.Timer	waitingOnSegmentAllocation Time spent waiting for a CLS to be allocated - under normal conditions this should be zero

Constructor Summary

Constructors

Constructor and Description
CommitLogMetrics()

Method Summary

Methods

Modifier and Type	Method and Description
void	attach(AbstractCommitLogService service, CommitLogSegmentManager allocator)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

factory

public static final MetricNameFactory factory

completedTasks

public com.codahale.metrics.Gauge<java.lang.Long> completedTasks

Number of completed tasks

pendingTasks

public com.codahale.metrics.Gauge<java.lang.Long> pendingTasks

Number of pending tasks

totalCommitLogSize

public com.codahale.metrics.Gauge<java.lang.Long> totalCommitLogSize

Current size used by all the commit log segments

waitingOnSegmentAllocation

public final com.codahale.metrics.Timer waitingOnSegmentAllocation

Time spent waiting for a CLS to be allocated - under normal conditions this should be zero

waitingOnCommit

public final com.codahale.metrics.Timer waitingOnCommit

The time spent waiting on CL sync; for Periodic this is only occurs when the sync is lagging its sync interval

Constructor Detail

CommitLogMetrics

public CommitLogMetrics()

Method Detail

attach

public void attach(AbstractCommitLogService service,
          CommitLogSegmentManager allocator)