RegionMetrics (Apache HBase 2.3.0 API)

All Known Implementing Classes:

RegionLoad, RegionMetricsBuilder.RegionMetricsImpl
```
@InterfaceAudience.Public
public interface RegionMetrics
```
Encapsulates per-region load metrics.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`Size`	`getBloomFilterSize()`
`long`	`getCompactedCellCount()`
`long`	`getCompactingCellCount()`
`long`	`getCompletedSequenceId()` This does not really belong inside RegionLoad but its being done in the name of expediency.
`float`	`getDataLocality()`
`long`	`getFilteredReadRequestCount()`
`long`	`getLastMajorCompactionTimestamp()`
`int`	`getMaxCompactedStoreFileRefCount()`
`Size`	`getMemStoreSize()`
`default String`	`getNameAsString()`
`long`	`getReadRequestCount()`
`byte[]`	`getRegionName()`
`default long`	`getRequestCount()`
`int`	`getStoreCount()`
`int`	`getStoreFileCount()`
`Size`	`getStoreFileIndexSize()` TODO: why we pass the same value to different counters? Currently, the value from getStoreFileIndexSize() is same with getStoreFileRootLevelIndexSize() see HRegionServer#createRegionLoad.
`Size`	`getStoreFileRootLevelIndexSize()`
`Size`	`getStoreFileSize()`
`Size`	`getStoreFileUncompressedDataIndexSize()`
`int`	`getStoreRefCount()`
`Map<byte[],Long>`	`getStoreSequenceId()`
`Size`	`getUncompressedStoreFileSize()`
`long`	`getWriteRequestCount()`

- Method Detail
  - getRegionName
```
byte[] getRegionName()
```
    Returns:
    
    the region name
  - getStoreCount
```
int getStoreCount()
```
    Returns:
    
    the number of stores
  - getStoreFileCount
```
int getStoreFileCount()
```
    Returns:
    
    the number of storefiles
  - getStoreFileSize
```
Size getStoreFileSize()
```
    Returns:
    
    the total size of the storefiles
  - getMemStoreSize
```
Size getMemStoreSize()
```
    Returns:
    
    the memstore size
  - getReadRequestCount
```
long getReadRequestCount()
```
    Returns:
    
    the number of read requests made to region
  - getWriteRequestCount
```
long getWriteRequestCount()
```
    Returns:
    
    the number of write requests made to region
  - getRequestCount
```
default long getRequestCount()
```
    Returns:
    
    the number of write requests and read requests made to region
  - getNameAsString
```
default String getNameAsString()
```
    Returns:
    
    the region name as a string
  - getFilteredReadRequestCount
```
long getFilteredReadRequestCount()
```
    Returns:
    
    the number of filtered read requests made to region
  - getStoreFileIndexSize
```
Size getStoreFileIndexSize()
```
    TODO: why we pass the same value to different counters? Currently, the value from getStoreFileIndexSize() is same with getStoreFileRootLevelIndexSize() see HRegionServer#createRegionLoad.
    
    Returns:
    
    The current total size of root-level indexes for the region
  - getStoreFileRootLevelIndexSize
```
Size getStoreFileRootLevelIndexSize()
```
    Returns:
    
    The current total size of root-level indexes for the region
  - getStoreFileUncompressedDataIndexSize
```
Size getStoreFileUncompressedDataIndexSize()
```
    Returns:
    
    The total size of all index blocks, not just the root level
  - getBloomFilterSize
```
Size getBloomFilterSize()
```
    Returns:
    
    The total size of all Bloom filter blocks, not just loaded into the block cache
  - getCompactingCellCount
```
long getCompactingCellCount()
```
    Returns:
    
    the total number of cells in current compaction
  - getCompactedCellCount
```
long getCompactedCellCount()
```
    Returns:
    
    the number of already compacted kvs in current compaction
  - getCompletedSequenceId
```
long getCompletedSequenceId()
```
    This does not really belong inside RegionLoad but its being done in the name of expediency.
    
    Returns:
    
    the completed sequence Id for the region
  - getStoreSequenceId
```
Map<byte[],Long> getStoreSequenceId()
```
    Returns:
    
    completed sequence id per store.
  - getUncompressedStoreFileSize
```
Size getUncompressedStoreFileSize()
```
    Returns:
    
    the uncompressed size of the storefiles
  - getDataLocality
```
float getDataLocality()
```
    Returns:
    
    the data locality of region in the regionserver.
  - getLastMajorCompactionTimestamp
```
long getLastMajorCompactionTimestamp()
```
    Returns:
    
    the timestamp of the oldest hfile for any store of this region.
  - getStoreRefCount
```
int getStoreRefCount()
```
    Returns:
    
    the reference count for the stores of this region
  - getMaxCompactedStoreFileRefCount
```
int getMaxCompactedStoreFileRefCount()
```
    Returns:
    
    the max reference count for any store file among all compacted stores files of this region

Interface RegionMetrics

Method Summary

Method Detail

getRegionName

getStoreCount

getStoreFileCount

getStoreFileSize

getMemStoreSize

getReadRequestCount

getWriteRequestCount

getRequestCount

getNameAsString

getFilteredReadRequestCount

getStoreFileIndexSize

getStoreFileRootLevelIndexSize

getStoreFileUncompressedDataIndexSize

getBloomFilterSize

getCompactingCellCount

getCompactedCellCount

getCompletedSequenceId

getStoreSequenceId

getUncompressedStoreFileSize

getDataLocality

getLastMajorCompactionTimestamp

getStoreRefCount

getMaxCompactedStoreFileRefCount