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Apache ZooKeeper Server Source Code
Apache ZooKeeper is an open-source server which enables highly reliable distributed coordination.
Apache ZooKeeper Server Source Code files are provided in the source package file, apache-zookeeper-3.8.0.tar.gz.
You can download apache-zookeeper-3.8.0.tar.gz as described in the previous tutorial and go to the "zookeeper-server" sub-folder to view Apache ZooKeeper Server Source Code files.
You can also browse Apache ZooKeeper Server Source Code below:
✍: FYIcenter.com
⏎ org/apache/zookeeper/server/controller/ControllableConnectionFactory.java
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * 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 * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.zookeeper.server.controller; import edu.umd.cs.findbugs.annotations.SuppressFBWarnings; import java.io.IOException; import java.nio.channels.SelectionKey; import java.nio.channels.SocketChannel; import org.apache.zookeeper.server.NIOServerCnxn; import org.apache.zookeeper.server.NIOServerCnxnFactory; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Extension of NIOServerCnxnFactory which can inject changes per controller commands. * Similar extensions can implement on top of NettyServerCnxnFactory as well. */ @SuppressFBWarnings(value = "SWL_SLEEP_WITH_LOCK_HELD", justification = "no dead lock") public class ControllableConnectionFactory extends NIOServerCnxnFactory { private static final Logger LOG = LoggerFactory.getLogger(ControllableConnectionFactory.class); private long responseDelayInMs = 0; private long remainingRequestsToFail = 0; private long remainingResponsesToHold = 0; public ControllableConnectionFactory() { } @Override protected NIOServerCnxn createConnection(SocketChannel sock, SelectionKey sk, SelectorThread selectorThread) throws IOException { return new ControllableConnection(zkServer, sock, sk, this, selectorThread); } /** * Called by the connection to delay processing requests from the client. */ public synchronized void delayRequestIfNeeded() { try { if (responseDelayInMs > 0) { Thread.sleep(responseDelayInMs); } } catch (InterruptedException ex) { LOG.warn("Interrupted while delaying requests", ex); } } /** * Check if we should fail the next incoming request. * If so, decrement the remaining requests to fail. */ public synchronized boolean shouldFailNextRequest() { if (remainingRequestsToFail == 0) { return false; } // Value < 0 indicates fail all requests. if (remainingRequestsToFail > 0) { remainingRequestsToFail--; } return true; } /** * Check if we should send a response to the latest processed request (true), * or eat the response to mess with the client (false). * If so, decrement the remaining requests to eat. */ public synchronized boolean shouldSendResponse() { if (remainingResponsesToHold == 0) { return true; } // Value < 0 indicates hold all the responses. if (remainingResponsesToHold > 0) { remainingResponsesToHold--; } return false; } public synchronized void delayResponses(long delayInMs) { if (delayInMs < 0) { throw new IllegalArgumentException("delay must be non-negative"); } responseDelayInMs = delayInMs; } public synchronized void resetBadBehavior() { responseDelayInMs = 0; remainingRequestsToFail = 0; remainingResponsesToHold = 0; } public synchronized void failAllFutureRequests() { this.remainingRequestsToFail = -1; } public synchronized void failFutureRequests(long requestsToFail) { this.remainingRequestsToFail = requestsToFail; } public synchronized void holdAllFutureResponses() { this.remainingResponsesToHold = -1; } public synchronized void holdFutureResponses(long requestsToHold) { this.remainingResponsesToHold = requestsToHold; } }
⏎ org/apache/zookeeper/server/controller/ControllableConnectionFactory.java
Or download all of them as a single archive file:
File name: zookeeper-server-3.8.0-fyi.zip File size: 885581 bytes Release date: 2022-02-25 Download
⇒ Apache ZooKeeper Jute Source Code
⇐ Download and Install Apache ZooKeeper Source Package
2022-11-16, 13111👍, 0💬
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