org.apache.flink.runtime.query.KvStateServer Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
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*/
package org.apache.flink.runtime.query;
import java.net.InetSocketAddress;
/**
* An interface for the Queryable State Server running on each Task Manager in the cluster.
* This server is responsible for serving requests coming from the {@link KvStateClientProxy
* Queryable State Proxy} and requesting locally stored state.
*/
public interface KvStateServer {
/**
* Returns the {@link InetSocketAddress address} the server is listening to.
* @return Server address.
*/
InetSocketAddress getServerAddress();
/** Starts the server. */
void start() throws Throwable;
/** Shuts down the server and all related thread pools. */
void shutdown();
}