Package org.apache.pinot.query.runtime

Class QueryRunner

java.lang.Object

org.apache.pinot.query.runtime.QueryRunner

public class QueryRunner
extends Object

QueryRunner accepts a DistributedStagePlan and runs it.

Constructor Summary

Constructors

Constructor	Description
QueryRunner()

Method Summary

Modifier and Type	Method	Description
void	cancel(long requestId)
ExecutorService	getExecutorService()
void	init(org.apache.pinot.spi.env.PinotConfiguration config, InstanceDataManager instanceDataManager, org.apache.helix.HelixManager helixManager, ServerMetrics serverMetrics)	Initializes the query executor.
void	processQuery(DistributedStagePlan distributedStagePlan, Map<String,String> requestMetadata)	Execute a DistributedStagePlan.
void	shutDown()
void	start()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryRunner

public QueryRunner()

Method Detail

init

public void init(org.apache.pinot.spi.env.PinotConfiguration config,
                 InstanceDataManager instanceDataManager,
                 org.apache.helix.HelixManager helixManager,
                 ServerMetrics serverMetrics)

Initializes the query executor.

Should be called only once and before calling any other method.

getExecutorService

public ExecutorService getExecutorService()

start

public void start()

shutDown

public void shutDown()

processQuery

public void processQuery(DistributedStagePlan distributedStagePlan,
                         Map<String,String> requestMetadata)

Execute a DistributedStagePlan.

This execution entry point should be asynchronously called by the request handler and caller should not wait for results/exceptions.

cancel

public void cancel(long requestId)