CommitLogMetrics (apache-cassandra API)

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	Description
`com.codahale.metrics.Gauge<java.lang.Long>`	`completedTasks`	Number of completed tasks
`static MetricNameFactory`	`factory`
`com.codahale.metrics.Meter`	`oversizedMutations`	Number and rate of oversized mutations
`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`	`waitingOnFlush`	Time spent actually flushing the contents of a buffer to disk
`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 Description

CommitLogMetrics()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

void attach(AbstractCommitLogService service, AbstractCommitLogSegmentManager segmentManager)
- 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
- waitingOnFlush
```
public final com.codahale.metrics.Timer waitingOnFlush
```
  Time spent actually flushing the contents of a buffer to disk
- oversizedMutations
```
public final com.codahale.metrics.Meter oversizedMutations
```
  Number and rate of oversized mutations

Constructor Detail
- CommitLogMetrics
```
public CommitLogMetrics()
```

Method Detail

attach

public void attach(AbstractCommitLogService service,
                   AbstractCommitLogSegmentManager segmentManager)