Package org.apache.hadoop.hdfs.server.namenode.metrics

Interface ECBlockGroupsMBean

All Known Implementing Classes:

FSNamesystem

@Private
public interface ECBlockGroupsMBean

This interface defines the methods to get status pertaining to blocks of type BlockType.STRIPED in FSNamesystem of a NameNode. It is also used for publishing via JMX.

Aggregated status of all blocks is reported in

See Also:

• Name Node runtime activity statistic info is reported in
• NameNodeMetrics

Method Summary

Modifier and Type	Method	Description
long	getBytesInFutureECBlockGroups()	Return total bytes of erasure coded future block groups.
long	getCorruptECBlockGroups()	Return count of erasure coded block groups that are corrupt.
String	getEnabledEcPolicies()
long	getLowRedundancyECBlockGroups()	Return count of erasure coded block groups with low redundancy.
long	getMissingECBlockGroups()	Return count of erasure coded block groups that are missing.
long	getPendingDeletionECBlocks()	Return count of erasure coded blocks that are pending deletion.
long	getTotalECBlockGroups()	Return total number of erasure coded block groups.

Method Details

getLowRedundancyECBlockGroups

long getLowRedundancyECBlockGroups()

Return count of erasure coded block groups with low redundancy.

getCorruptECBlockGroups

long getCorruptECBlockGroups()

Return count of erasure coded block groups that are corrupt.

getMissingECBlockGroups

long getMissingECBlockGroups()

Return count of erasure coded block groups that are missing.

getBytesInFutureECBlockGroups

long getBytesInFutureECBlockGroups()

Return total bytes of erasure coded future block groups.

getPendingDeletionECBlocks

long getPendingDeletionECBlocks()

Return count of erasure coded blocks that are pending deletion.

getTotalECBlockGroups

long getTotalECBlockGroups()

Return total number of erasure coded block groups.

getEnabledEcPolicies

String getEnabledEcPolicies()

Returns:

the enabled erasure coding policies separated with comma.