MetricsSink (Apache HBase 1.2.12 API)

All Classes

Summary:
Nested |
Field |
Constr |
Method

Detail:
Field |
Constr |
Method

java.lang.Object
- org.apache.hadoop.hbase.replication.regionserver.MetricsSink

```
@InterfaceAudience.Private
public class MetricsSink
extends Object
```
This class is for maintaining the various replication statistics for a sink and publishing them through the metrics interfaces.

Field Summary

Fields
Modifier and Type Field and Description

private long lastTimestampForAge

private MetricsReplicationSinkSource mss

Constructor Summary

Constructors
Constructor and Description

MetricsSink()

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`applyBatch(long batchSize)` Convience method to change metrics when a batch of operations are applied.
`long`	`getAgeOfLastAppliedOp()` Get the Age of Last Applied Op
`long`	`getTimeStampOfLastAppliedOp()` Get the TimeStampOfLastAppliedOp.
`long`	`refreshAgeOfLastAppliedOp()` Refreshing the age makes sure the value returned is the actual one and not the one set a replication time
`long`	`setAgeOfLastAppliedOp(long timestamp)` Set the age of the last applied operation

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - lastTimestampForAge
```
private long lastTimestampForAge
```
  - mss
```
private final MetricsReplicationSinkSource mss
```
- Constructor Detail
  - MetricsSink
```
public MetricsSink()
```
- Method Detail
  - setAgeOfLastAppliedOp
```
public long setAgeOfLastAppliedOp(long timestamp)
```
    Set the age of the last applied operation
    
    Parameters:
    timestamp - The timestamp of the last operation applied.
    
    Returns:
    the age that was set
  - refreshAgeOfLastAppliedOp
```
public long refreshAgeOfLastAppliedOp()
```
    Refreshing the age makes sure the value returned is the actual one and not the one set a replication time
    
    Returns:
    refreshed age
  - applyBatch
```
public void applyBatch(long batchSize)
```
    Convience method to change metrics when a batch of operations are applied.
    
    Parameters:
    batchSize -
  - getAgeOfLastAppliedOp
```
public long getAgeOfLastAppliedOp()
```
    Get the Age of Last Applied Op
    
    Returns:
    ageOfLastAppliedOp
  - getTimeStampOfLastAppliedOp
```
public long getTimeStampOfLastAppliedOp()
```
    Get the TimeStampOfLastAppliedOp. If no replication Op applied yet, the value is the timestamp at which hbase instance starts
    
    Returns:
    timeStampsOfLastAppliedOp;

All Classes

Summary:
Nested |
Field |
Constr |
Method

Detail:
Field |
Constr |
Method

Copyright © 2007–2019 The Apache Software Foundation. All rights reserved.