MetricsRegionWrapper (Apache HBase 2.1.0-cdh6.3.2 API)

All Known Implementing Classes:

MetricsRegionWrapperImpl
```
@InterfaceAudience.Private
public interface MetricsRegionWrapper
```
Interface of class that will wrap an HRegion and export numbers so they can be used in MetricsRegionSource

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`long`	`getAvgStoreFileAge()`
`long`	`getFilteredReadRequestCount()` Get the total number of filtered read requests that have been issued against this region
`long`	`getLastMajorCompactionAge()`
`long`	`getMaxCompactionQueueSize()`
`long`	`getMaxFlushQueueSize()`
`long`	`getMaxStoreFileAge()`
`long`	`getMemStoreSize()` Get the size of the memstore on this region server.
`long`	`getMinStoreFileAge()`
`String`	`getNamespace()` Get the name of the namespace this table is in.
`long`	`getNumBytesCompacted()`
`long`	`getNumCompactionsCompleted()`
`long`	`getNumCompactionsFailed()` Returns the total number of compactions that have been reported as failed on this region.
`long`	`getNumCompactionsQueued()`
`long`	`getNumFilesCompacted()`
`long`	`getNumFlushesQueued()`
`long`	`getNumReferenceFiles()`
`long`	`getNumStoreFiles()` Get the number of store files hosted on this region server.
`long`	`getNumStores()` Get the number of stores hosted on this region server.
`long`	`getReadRequestCount()` Get the total number of read requests that have been issued against this region
`int`	`getRegionHashCode()`
`String`	`getRegionName()` Get the name of the region.
`int`	`getReplicaId()` Get the replica id of this region.
`long`	`getStoreFileSize()` Get the total size of the store files this region server is serving from.
`String`	`getTableName()` Get the name of the table the region belongs to.
`long`	`getWriteRequestCount()` Get the total number of mutations that have been issued against this region.

- Method Detail
  - getTableName
```
String getTableName()
```
    Get the name of the table the region belongs to.
    
    Returns:
    
    The string version of the table name.
  - getNamespace
```
String getNamespace()
```
    Get the name of the namespace this table is in.
    
    Returns:
    
    String version of the namespace. Can't be empty.
  - getRegionName
```
String getRegionName()
```
    Get the name of the region.
    
    Returns:
    
    The encoded name of the region.
  - getNumStores
```
long getNumStores()
```
    Get the number of stores hosted on this region server.
  - getNumStoreFiles
```
long getNumStoreFiles()
```
    Get the number of store files hosted on this region server.
  - getMemStoreSize
```
long getMemStoreSize()
```
    Get the size of the memstore on this region server.
  - getStoreFileSize
```
long getStoreFileSize()
```
    Get the total size of the store files this region server is serving from.
  - getReadRequestCount
```
long getReadRequestCount()
```
    Get the total number of read requests that have been issued against this region
  - getFilteredReadRequestCount
```
long getFilteredReadRequestCount()
```
    Get the total number of filtered read requests that have been issued against this region
  - getMaxStoreFileAge
```
long getMaxStoreFileAge()
```
    Returns:
    
    Max age of store files under this region
  - getMinStoreFileAge
```
long getMinStoreFileAge()
```
    Returns:
    
    Min age of store files under this region
  - getAvgStoreFileAge
```
long getAvgStoreFileAge()
```
    Returns:
    
    Average age of store files under this region
  - getNumReferenceFiles
```
long getNumReferenceFiles()
```
    Returns:
    
    Number of reference files under this region
  - getWriteRequestCount
```
long getWriteRequestCount()
```
    Get the total number of mutations that have been issued against this region.
  - getNumFilesCompacted
```
long getNumFilesCompacted()
```
  - getNumBytesCompacted
```
long getNumBytesCompacted()
```
  - getNumCompactionsCompleted
```
long getNumCompactionsCompleted()
```
  - getLastMajorCompactionAge
```
long getLastMajorCompactionAge()
```
    Returns:
    
    Age of the last major compaction
  - getNumCompactionsFailed
```
long getNumCompactionsFailed()
```
    Returns the total number of compactions that have been reported as failed on this region. Note that a given compaction can be reported as both completed and failed if an exception is thrown in the processing after HRegion.compact().
  - getNumCompactionsQueued
```
long getNumCompactionsQueued()
```
    Returns:
    
    the total number of compactions that are currently queued(or being executed) at point in time
  - getNumFlushesQueued
```
long getNumFlushesQueued()
```
    Returns:
    
    the total number of flushes currently queued(being executed) for this region at point in time
  - getMaxCompactionQueueSize
```
long getMaxCompactionQueueSize()
```
    Returns:
    
    the max number of compactions queued for this region Note that this metric is updated periodically and hence might miss some data points
  - getMaxFlushQueueSize
```
long getMaxFlushQueueSize()
```
    Returns:
    
    the max number of flushes queued for this region Note that this metric is updated periodically and hence might miss some data points
  - getRegionHashCode
```
int getRegionHashCode()
```
  - getReplicaId
```
int getReplicaId()
```
    Get the replica id of this region.

Interface MetricsRegionWrapper

Method Summary

Method Detail

getTableName

getNamespace

getRegionName

getNumStores

getNumStoreFiles

getMemStoreSize

getStoreFileSize

getReadRequestCount

getFilteredReadRequestCount

getMaxStoreFileAge

getMinStoreFileAge

getAvgStoreFileAge

getNumReferenceFiles

getWriteRequestCount

getNumFilesCompacted

getNumBytesCompacted

getNumCompactionsCompleted

getLastMajorCompactionAge

getNumCompactionsFailed

getNumCompactionsQueued

getNumFlushesQueued

getMaxCompactionQueueSize

getMaxFlushQueueSize

getRegionHashCode

getReplicaId