Package org.apache.iotdb.db.mpp.execution.fragment

Class FragmentInstanceManager

java.lang.Object

org.apache.iotdb.db.mpp.execution.fragment.FragmentInstanceManager

public class FragmentInstanceManager
extends java.lang.Object

Method Summary

Modifier and Type	Method	Description
FragmentInstanceInfo	abortFragmentInstance(FragmentInstanceId fragmentInstanceId)	Aborts a FragmentInstance.
FragmentInstanceInfo	cancelTask(FragmentInstanceId instanceId)	Cancels a FragmentInstance.
FragmentInstanceInfo	execDataQueryFragmentInstance(FragmentInstance instance, DataRegion dataRegion)
FragmentInstanceInfo	execSchemaQueryFragmentInstance(FragmentInstance instance, ISchemaRegion schemaRegion)
io.airlift.stats.CounterStat	getFailedInstances()
static FragmentInstanceManager	getInstance()
FragmentInstanceInfo	getInstanceInfo(FragmentInstanceId instanceId)	Gets the info for the specified fragment instance.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static FragmentInstanceManager getInstance()

execDataQueryFragmentInstance

public FragmentInstanceInfo execDataQueryFragmentInstance(FragmentInstance instance,
                                                          DataRegion dataRegion)

execSchemaQueryFragmentInstance

public FragmentInstanceInfo execSchemaQueryFragmentInstance(FragmentInstance instance,
                                                            ISchemaRegion schemaRegion)

abortFragmentInstance

public FragmentInstanceInfo abortFragmentInstance(FragmentInstanceId fragmentInstanceId)

Aborts a FragmentInstance. keep FragmentInstanceContext for later state tracking

cancelTask

public FragmentInstanceInfo cancelTask(FragmentInstanceId instanceId)

Cancels a FragmentInstance.

getInstanceInfo

public FragmentInstanceInfo getInstanceInfo(FragmentInstanceId instanceId)

Gets the info for the specified fragment instance.

NOTE: this design assumes that only fragment instances that will eventually exist are queried.

getFailedInstances

public io.airlift.stats.CounterStat getFailedInstances()