org.apache.flink.runtime.dispatcher

Class MiniDispatcher

java.lang.Object

org.apache.flink.runtime.rpc.RpcEndpoint

org.apache.flink.runtime.rpc.FencedRpcEndpoint<F>

org.apache.flink.runtime.rpc.PermanentlyFencedRpcEndpoint<DispatcherId>

org.apache.flink.runtime.dispatcher.Dispatcher

org.apache.flink.runtime.dispatcher.MiniDispatcher

All Implemented Interfaces:

AutoCloseable, DispatcherGateway, FencedRpcGateway<DispatcherId>, RpcGateway, RestfulGateway, org.apache.flink.util.AutoCloseableAsync

public class MiniDispatcher
extends Dispatcher

Mini Dispatcher which is instantiated as the dispatcher component by the JobClusterEntrypoint.

The mini dispatcher is initialized with a single JobGraph which it runs.

Depending on the ClusterEntrypoint.ExecutionMode, the mini dispatcher will directly terminate after job completion if its execution mode is ClusterEntrypoint.ExecutionMode#DETACHED.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.runtime.rpc.RpcEndpoint

RpcEndpoint.MainThreadExecutor

Field Summary

Fields inherited from class org.apache.flink.runtime.dispatcher.Dispatcher

DISPATCHER_NAME, shutDownFuture

Fields inherited from class org.apache.flink.runtime.rpc.RpcEndpoint

log, rpcServer

Constructor Summary

Constructors

Constructor and Description
MiniDispatcher(RpcService rpcService, String endpointId, DispatcherId fencingToken, DispatcherServices dispatcherServices, JobGraph jobGraph, ClusterEntrypoint.ExecutionMode executionMode)

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Acknowledge>	cancelJob(org.apache.flink.api.common.JobID jobId, org.apache.flink.api.common.time.Time timeout) Cancel the given job.
protected void	jobNotFinished(org.apache.flink.api.common.JobID jobId)
protected void	jobReachedGloballyTerminalState(ArchivedExecutionGraph archivedExecutionGraph)
CompletableFuture<JobResult>	requestJobResult(org.apache.flink.api.common.JobID jobId, org.apache.flink.api.common.time.Time timeout) Requests the JobResult of a job specified by the given jobId.
CompletableFuture<Acknowledge>	submitJob(JobGraph jobGraph, org.apache.flink.api.common.time.Time timeout) Submit a job to the dispatcher.

Methods inherited from class org.apache.flink.runtime.dispatcher.Dispatcher

disposeSavepoint, getBlobServerPort, getShutDownFuture, listJobs, onFatalError, onRemovedJobGraph, onStart, onStop, requestClusterOverview, requestJob, requestJobStatus, requestMetricQueryServiceAddresses, requestMultipleJobDetails, requestOperatorBackPressureStats, requestTaskManagerMetricQueryServiceAddresses, shutDownCluster, stopWithSavepoint, triggerSavepoint

Methods inherited from class org.apache.flink.runtime.rpc.PermanentlyFencedRpcEndpoint

setFencingToken

Methods inherited from class org.apache.flink.runtime.rpc.FencedRpcEndpoint

callAsyncWithoutFencing, getFencingToken, getMainThreadExecutor, getUnfencedMainThreadExecutor, runAsyncWithoutFencing

Methods inherited from class org.apache.flink.runtime.rpc.RpcEndpoint

callAsync, closeAsync, getAddress, getEndpointId, getHostname, getRpcService, getSelfGateway, getTerminationFuture, internalCallOnStart, internalCallOnStop, isRunning, runAsync, scheduleRunAsync, scheduleRunAsync, start, stop, validateRunsInMainThread

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.runtime.rpc.FencedRpcGateway

getFencingToken

Methods inherited from interface org.apache.flink.runtime.rpc.RpcGateway

getAddress, getHostname

Methods inherited from interface org.apache.flink.util.AutoCloseableAsync

close

Constructor Detail

MiniDispatcher

public MiniDispatcher(RpcService rpcService,
                      String endpointId,
                      DispatcherId fencingToken,
                      DispatcherServices dispatcherServices,
                      JobGraph jobGraph,
                      ClusterEntrypoint.ExecutionMode executionMode)
               throws Exception

Throws:

Exception

Method Detail

submitJob

public CompletableFuture<Acknowledge> submitJob(JobGraph jobGraph,
                                                org.apache.flink.api.common.time.Time timeout)

Description copied from interface: DispatcherGateway

Submit a job to the dispatcher.

Specified by:

submitJob in interface DispatcherGateway

Overrides:

submitJob in class Dispatcher

Parameters:

jobGraph - JobGraph to submit

timeout - RPC timeout

Returns:

A future acknowledge if the submission succeeded

requestJobResult

public CompletableFuture<JobResult> requestJobResult(org.apache.flink.api.common.JobID jobId,
                                                     org.apache.flink.api.common.time.Time timeout)

Description copied from interface: RestfulGateway

Requests the JobResult of a job specified by the given jobId.

Specified by:

requestJobResult in interface RestfulGateway

Overrides:

requestJobResult in class Dispatcher

Parameters:

jobId - identifying the job for which to retrieve the JobResult.

timeout - for the asynchronous operation

Returns:

Future which is completed with the job's JobResult once the job has finished

cancelJob

public CompletableFuture<Acknowledge> cancelJob(org.apache.flink.api.common.JobID jobId,
                                                org.apache.flink.api.common.time.Time timeout)

Description copied from interface: RestfulGateway

Cancel the given job.

Specified by:

cancelJob in interface RestfulGateway

Overrides:

cancelJob in class Dispatcher

Parameters:

jobId - identifying the job to cancel

timeout - of the operation

Returns:

A future acknowledge if the cancellation succeeded

jobReachedGloballyTerminalState

protected void jobReachedGloballyTerminalState(ArchivedExecutionGraph archivedExecutionGraph)

Overrides:

jobReachedGloballyTerminalState in class Dispatcher

jobNotFinished

protected void jobNotFinished(org.apache.flink.api.common.JobID jobId)

Overrides:

jobNotFinished in class Dispatcher