org.apache.hadoop.hbase
Class ClusterStatus

java.lang.Object
  org.apache.hadoop.io.VersionedWritable
      org.apache.hadoop.hbase.ClusterStatus

All Implemented Interfaces:

org.apache.hadoop.io.Writable

public class ClusterStatus
extends org.apache.hadoop.io.VersionedWritable

Status information on the HBase cluster.

ClusterStatus provides clients with information such as:

• The count and names of region servers in the cluster.
• The count and names of dead region servers in the cluster.
• The average cluster load.
• The number of regions deployed on the cluster.
• The number of requests since last report.
• Detailed region server loading and resource usage information, per server and per region.
• Regions in transition at master

Constructor Summary

ClusterStatus()
Constructor, for Writable

Method Summary

boolean	equals(java.lang.Object o)
double	getAverageLoad()
java.util.Collection<java.lang.String>	getDeadServerNames()
int	getDeadServers()
java.lang.String	getHBaseVersion()
int	getRegionsCount()
java.util.Map<java.lang.String,AssignmentManager.RegionState>	getRegionsInTransition()
int	getRequestsCount()
java.util.Collection<HServerInfo>	getServerInfo() Returns detailed region server information: A list of HServerInfo, containing server load and resource usage statistics as HServerLoad, containing per-region statistics as HServerLoad.RegionLoad.
int	getServers()
byte	getVersion()
int	hashCode()
void	readFields(java.io.DataInput in)
void	setDeadServers(java.util.Collection<java.lang.String> deadServers)
void	setHBaseVersion(java.lang.String version)
void	setRegionsInTransition(java.util.Map<java.lang.String,AssignmentManager.RegionState> m)
void	setServerInfo(java.util.Collection<HServerInfo> serverInfo)
void	write(java.io.DataOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

ClusterStatus

public ClusterStatus()

Constructor, for Writable

Method Detail

getDeadServerNames

public java.util.Collection<java.lang.String> getDeadServerNames()

Returns:

the names of region servers on the dead list

getServers

public int getServers()

Returns:

the number of region servers in the cluster

getDeadServers

public int getDeadServers()

Returns:

the number of dead region servers in the cluster

getAverageLoad

public double getAverageLoad()

Returns:

the average cluster load

getRegionsCount

public int getRegionsCount()

Returns:

the number of regions deployed on the cluster

getRequestsCount

public int getRequestsCount()

Returns:

the number of requests since last report

getHBaseVersion

public java.lang.String getHBaseVersion()

Returns:

the HBase version string as reported by the HMaster

setHBaseVersion

public void setHBaseVersion(java.lang.String version)

Parameters:

version - the HBase version string

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

See Also:

Object.equals(java.lang.Object)

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

See Also:

Object.hashCode()

getVersion

public byte getVersion()

Specified by:

getVersion in class org.apache.hadoop.io.VersionedWritable

Returns:

the object version number

getServerInfo

public java.util.Collection<HServerInfo> getServerInfo()

Returns detailed region server information: A list of HServerInfo, containing server load and resource usage statistics as HServerLoad, containing per-region statistics as HServerLoad.RegionLoad.

Returns:

region server information

setServerInfo

public void setServerInfo(java.util.Collection<HServerInfo> serverInfo)

setDeadServers

public void setDeadServers(java.util.Collection<java.lang.String> deadServers)

getRegionsInTransition

public java.util.Map<java.lang.String,AssignmentManager.RegionState> getRegionsInTransition()

setRegionsInTransition

public void setRegionsInTransition(java.util.Map<java.lang.String,AssignmentManager.RegionState> m)

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Overrides:

write in class org.apache.hadoop.io.VersionedWritable

Throws:

java.io.IOException

readFields

public void readFields(java.io.DataInput in)
                throws java.io.IOException

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Overrides:

readFields in class org.apache.hadoop.io.VersionedWritable

Throws:

java.io.IOException