org.apache.flink.runtime.taskexecutor

Interface JobLeaderListener

public interface JobLeaderListener

Listener for the JobLeaderService. The listener is notified whenever a job manager gained leadership for a registered job and the service could establish a connection to it. Furthermore, the listener is notified when a job manager loses leadership for a job. In case of an error, the handleError(Throwable)} is called.

Method Summary

Modifier and Type	Method and Description
void	handleError(Throwable throwable) Callback for errors which might occur in the JobLeaderService.
void	jobManagerGainedLeadership(org.apache.flink.api.common.JobID jobId, JobMasterGateway jobManagerGateway, JMTMRegistrationSuccess registrationMessage) Callback if a job manager has gained leadership for the job identified by the job id and a connection could be established to this job manager.
void	jobManagerLostLeadership(org.apache.flink.api.common.JobID jobId, JobMasterId jobMasterId) Callback if the job leader for the job with the given job id lost its leadership.
void	jobManagerRejectedRegistration(org.apache.flink.api.common.JobID jobId, String targetAddress, JMTMRegistrationRejection rejection) Callback if a job manager rejected the connection attempts of a task manager.

Method Detail

jobManagerGainedLeadership

void jobManagerGainedLeadership(org.apache.flink.api.common.JobID jobId,
                                JobMasterGateway jobManagerGateway,
                                JMTMRegistrationSuccess registrationMessage)

Callback if a job manager has gained leadership for the job identified by the job id and a connection could be established to this job manager.

Parameters:

jobId - identifying the job for which the job manager has gained leadership

jobManagerGateway - to the job leader

registrationMessage - containing further registration information

jobManagerLostLeadership

void jobManagerLostLeadership(org.apache.flink.api.common.JobID jobId,
                              JobMasterId jobMasterId)

Callback if the job leader for the job with the given job id lost its leadership.

Parameters:

jobId - identifying the job whose leader has lost leadership

jobMasterId - old JobMasterId

handleError

void handleError(Throwable throwable)

Callback for errors which might occur in the JobLeaderService.

Parameters:

throwable - cause

jobManagerRejectedRegistration

void jobManagerRejectedRegistration(org.apache.flink.api.common.JobID jobId,
                                    String targetAddress,
                                    JMTMRegistrationRejection rejection)

Callback if a job manager rejected the connection attempts of a task manager.

Parameters:

jobId - jobId identifying the job to connect to

targetAddress - targetAddress of the responsible job manager

rejection - rejection containing more information about the rejection