Apache ZooKeeper is an open-source server which enables highly reliable distributed coordination.

Apache ZooKeeper Server Source Code files are provided in the source packge (apache-zookeeper-3.7.0.tar.gz). You can download it at Apache ZooKeeper Website.

You can also browse Apache ZooKeeper Server Source Code below:

⏎ org/apache/zookeeper/server/quorum/ObserverMXBean.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.quorum;

import org.apache.zookeeper.server.ZooKeeperServerMXBean;

/**
 * Observer MX Bean interface, implemented by ObserverBean
 *
 */
public interface ObserverMXBean extends ZooKeeperServerMXBean {

    /**
     * @return count of pending revalidations
     */
    int getPendingRevalidationCount();

    /**
     * @return socket address
     */
    String getQuorumAddress();

    /**
     * @return address of the current learner master
     */
    String getLearnerMaster();

    /**
     * requests the Observer switch to a new learner master
     *
     * @param learnerMaster address of the desired learner master
     */
    void setLearnerMaster(String learnerMaster);

}

⏎ org/apache/zookeeper/server/quorum/ObserverMXBean.java

 

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