org.apache.drill.exec.work

Class WorkManager.WorkerBee

java.lang.Object

org.apache.drill.exec.work.WorkManager.WorkerBee

Enclosing class:

WorkManager

public class WorkManager.WorkerBee
extends Object

Narrowed interface to WorkManager that is made available to tasks it is managing.

Constructor Summary

Constructors

Constructor and Description
WorkManager.WorkerBee()

Method Summary

Methods

Modifier and Type	Method and Description
void	addFragmentRunner(FragmentExecutor fragmentExecutor) Currently used to start a root fragment that is not blocked on data, and leaf fragments.
void	addNewForeman(Foreman foreman)
void	addNewWork(Runnable runnable) Add a self contained runnable work to executor service.
DrillbitContext	getContext()
Foreman	getForemanForQueryId(UserBitShared.QueryId queryId)
FragmentExecutor	getFragmentRunner(ExecProtos.FragmentHandle handle)
void	retireForeman(Foreman foreman) Remove the given Foreman from the running query list.
void	startFragmentPendingRemote(FragmentManager fragmentManager) Currently used to start a root fragment that is blocked on data, and intermediate fragments.

Methods inherited from class java.lang.Object

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

Constructor Detail

WorkManager.WorkerBee

public WorkManager.WorkerBee()

Method Detail

addNewForeman

public void addNewForeman(Foreman foreman)

addNewWork

public void addNewWork(Runnable runnable)

Add a self contained runnable work to executor service.

Parameters:

runnable -

retireForeman

public void retireForeman(Foreman foreman)

Remove the given Foreman from the running query list.

The running query list is a bit of a misnomer, because it doesn't necessarily mean that Foreman.run() is executing. That only lasts for the duration of query setup, after which the Foreman instance survives as a state machine that reacts to events from the local root fragment as well as RPC responses from remote Drillbits.

Parameters:

foreman - the Foreman to retire

getForemanForQueryId

public Foreman getForemanForQueryId(UserBitShared.QueryId queryId)

getContext

public DrillbitContext getContext()

addFragmentRunner

public void addFragmentRunner(FragmentExecutor fragmentExecutor)

Currently used to start a root fragment that is not blocked on data, and leaf fragments.

Parameters:

fragmentExecutor - the executor to run

startFragmentPendingRemote

public void startFragmentPendingRemote(FragmentManager fragmentManager)

Currently used to start a root fragment that is blocked on data, and intermediate fragments. This method is called, when the first batch arrives.

Parameters:

fragmentManager - the manager for the fragment

getFragmentRunner

public FragmentExecutor getFragmentRunner(ExecProtos.FragmentHandle handle)