org.apache.hadoop.hbase.regionserver

Class MetricsRegionWrapperImpl

java.lang.Object

org.apache.hadoop.hbase.regionserver.MetricsRegionWrapperImpl

All Implemented Interfaces:

Closeable, AutoCloseable, MetricsRegionWrapper

@InterfaceAudience.Private
public class MetricsRegionWrapperImpl
extends Object
implements MetricsRegionWrapper, Closeable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	MetricsRegionWrapperImpl.HRegionMetricsWrapperRunnable

Field Summary

Fields

Modifier and Type	Field and Description
static int	PERIOD
static String	UNKNOWN

Constructor Summary

Constructors

Constructor and Description
MetricsRegionWrapperImpl(HRegion region)

Method Summary

Modifier and Type	Method and Description
void	close()
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.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PERIOD

public static final int PERIOD

See Also:

Constant Field Values

UNKNOWN

public static final String UNKNOWN

See Also:

Constant Field Values

Constructor Detail

MetricsRegionWrapperImpl

public MetricsRegionWrapperImpl(HRegion region)

Method Detail

getTableName

public String getTableName()

Description copied from interface: MetricsRegionWrapper

Get the name of the table the region belongs to.

Specified by:

getTableName in interface MetricsRegionWrapper

Returns:

The string version of the table name.

getNamespace

public String getNamespace()

Description copied from interface: MetricsRegionWrapper

Get the name of the namespace this table is in.

Specified by:

getNamespace in interface MetricsRegionWrapper

Returns:

String version of the namespace. Can't be empty.

getRegionName

public String getRegionName()

Description copied from interface: MetricsRegionWrapper

Get the name of the region.

Specified by:

getRegionName in interface MetricsRegionWrapper

Returns:

The encoded name of the region.

getNumStores

public long getNumStores()

Description copied from interface: MetricsRegionWrapper

Get the number of stores hosted on this region server.

Specified by:

getNumStores in interface MetricsRegionWrapper

getNumStoreFiles

public long getNumStoreFiles()

Description copied from interface: MetricsRegionWrapper

Get the number of store files hosted on this region server.

Specified by:

getNumStoreFiles in interface MetricsRegionWrapper

getMemStoreSize

public long getMemStoreSize()

Description copied from interface: MetricsRegionWrapper

Get the size of the memstore on this region server.

Specified by:

getMemStoreSize in interface MetricsRegionWrapper

getStoreFileSize

public long getStoreFileSize()

Description copied from interface: MetricsRegionWrapper

Get the total size of the store files this region server is serving from.

Specified by:

getStoreFileSize in interface MetricsRegionWrapper

getReadRequestCount

public long getReadRequestCount()

Description copied from interface: MetricsRegionWrapper

Get the total number of read requests that have been issued against this region

Specified by:

getReadRequestCount in interface MetricsRegionWrapper

getFilteredReadRequestCount

public long getFilteredReadRequestCount()

Description copied from interface: MetricsRegionWrapper

Get the total number of filtered read requests that have been issued against this region

Specified by:

getFilteredReadRequestCount in interface MetricsRegionWrapper

getWriteRequestCount

public long getWriteRequestCount()

Description copied from interface: MetricsRegionWrapper

Get the total number of mutations that have been issued against this region.

Specified by:

getWriteRequestCount in interface MetricsRegionWrapper

getNumFilesCompacted

public long getNumFilesCompacted()

Specified by:

getNumFilesCompacted in interface MetricsRegionWrapper

getNumBytesCompacted

public long getNumBytesCompacted()

Specified by:

getNumBytesCompacted in interface MetricsRegionWrapper

getNumCompactionsCompleted

public long getNumCompactionsCompleted()

Specified by:

getNumCompactionsCompleted in interface MetricsRegionWrapper

getLastMajorCompactionAge

public long getLastMajorCompactionAge()

Specified by:

getLastMajorCompactionAge in interface MetricsRegionWrapper

Returns:

Age of the last major compaction

getNumCompactionsFailed

public long getNumCompactionsFailed()

Description copied from interface: MetricsRegionWrapper

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().

Specified by:

getNumCompactionsFailed in interface MetricsRegionWrapper

getNumCompactionsQueued

public long getNumCompactionsQueued()

Specified by:

getNumCompactionsQueued in interface MetricsRegionWrapper

Returns:

the total number of compactions that are currently queued(or being executed) at point in time

getNumFlushesQueued

public long getNumFlushesQueued()

Specified by:

getNumFlushesQueued in interface MetricsRegionWrapper

Returns:

the total number of flushes currently queued(being executed) for this region at point in time

getMaxCompactionQueueSize

public long getMaxCompactionQueueSize()

Specified by:

getMaxCompactionQueueSize in interface MetricsRegionWrapper

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

public long getMaxFlushQueueSize()

Specified by:

getMaxFlushQueueSize in interface MetricsRegionWrapper

Returns:

the max number of flushes queued for this region Note that this metric is updated periodically and hence might miss some data points

getMaxStoreFileAge

public long getMaxStoreFileAge()

Specified by:

getMaxStoreFileAge in interface MetricsRegionWrapper

Returns:

Max age of store files under this region

getMinStoreFileAge

public long getMinStoreFileAge()

Specified by:

getMinStoreFileAge in interface MetricsRegionWrapper

Returns:

Min age of store files under this region

getAvgStoreFileAge

public long getAvgStoreFileAge()

Specified by:

getAvgStoreFileAge in interface MetricsRegionWrapper

Returns:

Average age of store files under this region

getNumReferenceFiles

public long getNumReferenceFiles()

Specified by:

getNumReferenceFiles in interface MetricsRegionWrapper

Returns:

Number of reference files under this region

getRegionHashCode

public int getRegionHashCode()

Specified by:

getRegionHashCode in interface MetricsRegionWrapper

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

getReplicaId

public int getReplicaId()

Get the replica id of this region.

Specified by:

getReplicaId in interface MetricsRegionWrapper