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

Class FederationRPCPerformanceMonitor

java.lang.Object

org.apache.hadoop.hdfs.server.federation.metrics.FederationRPCPerformanceMonitor

All Implemented Interfaces:

RouterRpcMonitor

public class FederationRPCPerformanceMonitor
extends java.lang.Object
implements RouterRpcMonitor

Customizable RPC performance monitor. Receives events from the RPC server and aggregates them via JMX.

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	CONCURRENT

Constructor Summary

Constructors

Constructor	Description
FederationRPCPerformanceMonitor()

Method Summary

Modifier and Type	Method	Description
void	close()	Close the monitor.
FederationRPCMetrics	getRPCMetrics()	Get Router RPC metrics info.
void	init(org.apache.hadoop.conf.Configuration configuration, RouterRpcServer rpcServer, StateStoreService stateStore)	Initialize the monitor.
long	proxyOp()	Start proxying an operation to the Namenode.
void	proxyOpComplete(boolean success, java.lang.String nsId, FederationNamenodeServiceState state)	Mark a proxy operation as completed.
void	proxyOpFailureClientOverloaded()	Failed to proxy an operation to a Namenode because the client was overloaded.
void	proxyOpFailureCommunicate(java.lang.String nsId)	Failed to proxy an operation to a namenode because of an unexpected exception.
void	proxyOpFailureStandby(java.lang.String nsId)	Failed to proxy an operation to a namenode because it was in standby.
void	proxyOpNoNamenodes(java.lang.String nsId)	Failed to proxy an operation because of no namenodes available.
void	proxyOpNotImplemented()	Failed to proxy an operation because it is not implemented.
void	proxyOpPermitAccepted(java.lang.String nsId)	Accepted to proxy an operation to a namenode.
void	proxyOpPermitRejected(java.lang.String nsId)	Rejected to proxy an operation to a namenode.
void	proxyOpRetries()	Retry to proxy an operation to a Namenode because of an unexpected exception.
void	resetPerfCounters()	Resets all RPC service performance counters to their defaults.
void	routerFailureLocked()	If a path is locked.
void	routerFailureReadOnly()	If a path is in a read only mount point.
void	routerFailureSafemode()	If the Router is in safe mode.
void	routerFailureStateStore()	If the Router cannot contact the State Store in an operation.
void	startOp()	Start processing an operation on the Router.

Methods inherited from class java.lang.Object

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

Field Detail

CONCURRENT

public static final java.lang.String CONCURRENT

See Also:

Constant Field Values

Constructor Detail

FederationRPCPerformanceMonitor

public FederationRPCPerformanceMonitor()

Method Detail

init

public void init(org.apache.hadoop.conf.Configuration configuration,
                 RouterRpcServer rpcServer,
                 StateStoreService stateStore)

Description copied from interface: RouterRpcMonitor

Initialize the monitor.

Specified by:

init in interface RouterRpcMonitor

Parameters:

configuration - Configuration for the monitor.

rpcServer - RPC server.

stateStore - State Store.

close

public void close()

Description copied from interface: RouterRpcMonitor

Close the monitor.

Specified by:

close in interface RouterRpcMonitor

resetPerfCounters

public void resetPerfCounters()

Resets all RPC service performance counters to their defaults.

startOp

public void startOp()

Description copied from interface: RouterRpcMonitor

Start processing an operation on the Router.

Specified by:

startOp in interface RouterRpcMonitor

proxyOp

public long proxyOp()

Description copied from interface: RouterRpcMonitor

Start proxying an operation to the Namenode.

Specified by:

proxyOp in interface RouterRpcMonitor

Returns:

id of the thread doing the proxying.

proxyOpComplete

public void proxyOpComplete(boolean success,
                            java.lang.String nsId,
                            FederationNamenodeServiceState state)

Description copied from interface: RouterRpcMonitor

Mark a proxy operation as completed.

Specified by:

proxyOpComplete in interface RouterRpcMonitor

Parameters:

success - if the operation was successful.

nsId - nameservice id.

state - namenode state in the federation.

proxyOpFailureStandby

public void proxyOpFailureStandby(java.lang.String nsId)

Description copied from interface: RouterRpcMonitor

Failed to proxy an operation to a namenode because it was in standby.

Specified by:

proxyOpFailureStandby in interface RouterRpcMonitor

Parameters:

nsId - nameservice id.

proxyOpFailureCommunicate

public void proxyOpFailureCommunicate(java.lang.String nsId)

Description copied from interface: RouterRpcMonitor

Failed to proxy an operation to a namenode because of an unexpected exception.

Specified by:

proxyOpFailureCommunicate in interface RouterRpcMonitor

Parameters:

nsId - nameservice id.

proxyOpPermitRejected

public void proxyOpPermitRejected(java.lang.String nsId)

Description copied from interface: RouterRpcMonitor

Rejected to proxy an operation to a namenode.

Specified by:

proxyOpPermitRejected in interface RouterRpcMonitor

Parameters:

nsId - nameservice id.

proxyOpPermitAccepted

public void proxyOpPermitAccepted(java.lang.String nsId)

Description copied from interface: RouterRpcMonitor

Accepted to proxy an operation to a namenode.

Specified by:

proxyOpPermitAccepted in interface RouterRpcMonitor

Parameters:

nsId - nameservice id.

proxyOpFailureClientOverloaded

public void proxyOpFailureClientOverloaded()

Description copied from interface: RouterRpcMonitor

Failed to proxy an operation to a Namenode because the client was overloaded.

Specified by:

proxyOpFailureClientOverloaded in interface RouterRpcMonitor

proxyOpNotImplemented

public void proxyOpNotImplemented()

Description copied from interface: RouterRpcMonitor

Failed to proxy an operation because it is not implemented.

Specified by:

proxyOpNotImplemented in interface RouterRpcMonitor

proxyOpRetries

public void proxyOpRetries()

Description copied from interface: RouterRpcMonitor

Retry to proxy an operation to a Namenode because of an unexpected exception.

Specified by:

proxyOpRetries in interface RouterRpcMonitor

proxyOpNoNamenodes

public void proxyOpNoNamenodes(java.lang.String nsId)

Description copied from interface: RouterRpcMonitor

Failed to proxy an operation because of no namenodes available.

Specified by:

proxyOpNoNamenodes in interface RouterRpcMonitor

Parameters:

nsId - nameservice id.

routerFailureStateStore

public void routerFailureStateStore()

Description copied from interface: RouterRpcMonitor

If the Router cannot contact the State Store in an operation.

Specified by:

routerFailureStateStore in interface RouterRpcMonitor

routerFailureSafemode

public void routerFailureSafemode()

Description copied from interface: RouterRpcMonitor

If the Router is in safe mode.

Specified by:

routerFailureSafemode in interface RouterRpcMonitor

routerFailureReadOnly

public void routerFailureReadOnly()

Description copied from interface: RouterRpcMonitor

If a path is in a read only mount point.

Specified by:

routerFailureReadOnly in interface RouterRpcMonitor

routerFailureLocked

public void routerFailureLocked()

Description copied from interface: RouterRpcMonitor

If a path is locked.

Specified by:

routerFailureLocked in interface RouterRpcMonitor

getRPCMetrics

public FederationRPCMetrics getRPCMetrics()

Description copied from interface: RouterRpcMonitor

Get Router RPC metrics info.

Specified by:

getRPCMetrics in interface RouterRpcMonitor

Returns:

The instance of FederationRPCMetrics.