Package org.apache.iotdb.db.mpp.plan.scheduler

Class ClusterScheduler

java.lang.Object

org.apache.iotdb.db.mpp.plan.scheduler.ClusterScheduler

All Implemented Interfaces:

IScheduler

public class ClusterScheduler
extends java.lang.Object
implements IScheduler

QueryScheduler is used to dispatch the fragment instances of a query to target nodes. And it will continue to collect and monitor the query execution before the query is finished.

Later, we can add more control logic for a QueryExecution such as retry, kill and so on by this scheduler.

Constructor Summary

Constructors

Constructor

Description

ClusterScheduler(MPPQueryContext queryContext, QueryStateMachine stateMachine, java.util.List<FragmentInstance> instances, QueryType queryType, java.util.concurrent.ExecutorService executor, java.util.concurrent.ExecutorService writeOperationExecutor, java.util.concurrent.ScheduledExecutorService scheduledExecutor, org.apache.iotdb.commons.client.IClientManager<org.apache.iotdb.common.rpc.thrift.TEndPoint,org.apache.iotdb.commons.client.sync.SyncDataNodeInternalServiceClient> internalServiceClientManager)

Method Summary

Modifier and Type	Method	Description
void	abortFragmentInstance(FragmentInstanceId instanceId, java.lang.Throwable failureCause)
void	cancelFragment(PlanFragmentId planFragmentId)
FragmentInfo	getFragmentInfo()
io.airlift.units.Duration	getTotalCpuTime()
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

ClusterScheduler

public ClusterScheduler(MPPQueryContext queryContext,
                        QueryStateMachine stateMachine,
                        java.util.List<FragmentInstance> instances,
                        QueryType queryType,
                        java.util.concurrent.ExecutorService executor,
                        java.util.concurrent.ExecutorService writeOperationExecutor,
                        java.util.concurrent.ScheduledExecutorService scheduledExecutor,
                        org.apache.iotdb.commons.client.IClientManager<org.apache.iotdb.common.rpc.thrift.TEndPoint,org.apache.iotdb.commons.client.sync.SyncDataNodeInternalServiceClient> internalServiceClientManager)

Method Detail

start

public void start()

Specified by:

start in interface IScheduler

stop

public void stop()

Specified by:

stop in interface IScheduler

getTotalCpuTime

public io.airlift.units.Duration getTotalCpuTime()

Specified by:

getTotalCpuTime in interface IScheduler

getFragmentInfo

public FragmentInfo getFragmentInfo()

Specified by:

getFragmentInfo in interface IScheduler

abortFragmentInstance

public void abortFragmentInstance(FragmentInstanceId instanceId,
                                  java.lang.Throwable failureCause)

Specified by:

abortFragmentInstance in interface IScheduler

cancelFragment

public void cancelFragment(PlanFragmentId planFragmentId)

Specified by:

cancelFragment in interface IScheduler