alluxio.worker

Class JobWorkerIdRegistry

java.lang.Object

alluxio.worker.JobWorkerIdRegistry

@NotThreadSafe
public final class JobWorkerIdRegistry
extends java.lang.Object

The single place to get, set, and update job worker id. This class should be the only source of job worker id within the same job worker process.

Field Summary

Fields

Modifier and Type	Field and Description
static long	INVALID_WORKER_ID The default value to initialize job worker id, the job worker id generated by job master will never be the same as this value.

Method Summary

Modifier and Type	Method and Description
static java.lang.Long	getWorkerId()
static void	registerWorker(JobMasterClient jobMasterClient, WorkerNetAddress workerAddress) Registers with JobMaster to get a new job worker id.

Methods inherited from class java.lang.Object

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

Field Detail

INVALID_WORKER_ID

public static final long INVALID_WORKER_ID

The default value to initialize job worker id, the job worker id generated by job master will never be the same as this value.

See Also:

Constant Field Values

Method Detail

registerWorker

public static void registerWorker(JobMasterClient jobMasterClient,
                                  WorkerNetAddress workerAddress)
                           throws java.io.IOException,
                                  ConnectionFailedException

Registers with JobMaster to get a new job worker id.

Parameters:

jobMasterClient - the job master client to be used for RPC

workerAddress - current worker address

Throws:

java.io.IOException - when fails to get a new worker id

ConnectionFailedException - if network connection failed

getWorkerId

public static java.lang.Long getWorkerId()

Returns:

job worker id, 0 is invalid job worker id, representing that the job worker hasn't been registered with job master