Canary.RegionTask (Apache HBase 1.2.12 API)

java.lang.Object
- org.apache.hadoop.hbase.tool.Canary.RegionTask

All Implemented Interfaces:

Callable<Void>

Enclosing class:

Canary
```
static class Canary.RegionTask
extends Object
implements Callable<Void>
```
For each column family of the region tries to get one row and outputs the latency, or the failure.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class Canary.RegionTask.TaskType

Nested Classes
Modifier and Type	Class and Description
`static class`	`Canary.RegionTask.TaskType`

Field Summary

Fields
Modifier and Type Field and Description

private Connection connection

private HRegionInfo region

private Canary.Sink sink

private Canary.RegionTask.TaskType taskType

Fields
Modifier and Type	Field and Description
`private Connection`	`connection`
`private HRegionInfo`	`region`
`private Canary.Sink`	`sink`
`private Canary.RegionTask.TaskType`	`taskType`

Constructor Summary

Constructors
Constructor and Description
`Canary.RegionTask(Connection connection, HRegionInfo region, Canary.Sink sink, Canary.RegionTask.TaskType taskType)`

Method Summary

Methods
Modifier and Type Method and Description

Void call()

Void read()

private Void write()
Check writes for the canary table
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods
Modifier and Type	Method and Description
`Void`	`call()`
`Void`	`read()`
`private Void`	`write()` Check writes for the canary table

Field Detail

connection
```
private Connection connection
```

region
```
private HRegionInfo region
```

sink
```
private Canary.Sink sink
```

taskType

private Canary.RegionTask.TaskType taskType

Constructor Detail

Canary.RegionTask

Canary.RegionTask(Connection connection,
                 HRegionInfo region,
                 Canary.Sink sink,
                 Canary.RegionTask.TaskType taskType)

Method Detail
- call
```
public Void call()
```
  Specified by:
  
  call in interface Callable<Void>
- read
```
public Void read()
```
- write
```
private Void write()
```
  Check writes for the canary table
  
  Returns:

Class Canary.RegionTask

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

connection

region

sink

taskType

Constructor Detail

Canary.RegionTask

Method Detail

call

read

write