org.apache.solr.cloud.ConnectionManagerTest.java Source code

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Here is the source code for org.apache.solr.cloud.ConnectionManagerTest.java

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package org.apache.solr.cloud;

/*
 * 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.
 */

import java.io.File;

import org.apache.lucene.util.LuceneTestCase.Slow;
import org.apache.solr.SolrTestCaseJ4;
import org.apache.solr.common.cloud.ConnectionManager;
import org.apache.solr.common.cloud.SolrZkClient;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher.Event.EventType;
import org.apache.zookeeper.Watcher.Event.KeeperState;
import org.junit.Ignore;

@Slow
public class ConnectionManagerTest extends SolrTestCaseJ4 {

    static final int TIMEOUT = 3000;

    @Ignore
    public void testConnectionManager() throws Exception {

        // setup a SolrZkClient to do some getBaseUrlForNodeName testing
        String zkDir = createTempDir("zkData").getAbsolutePath();

        ZkTestServer server = new ZkTestServer(zkDir);
        try {
            server.run();

            AbstractZkTestCase.tryCleanSolrZkNode(server.getZkHost());
            AbstractZkTestCase.makeSolrZkNode(server.getZkHost());

            SolrZkClient zkClient = new SolrZkClient(server.getZkAddress(), TIMEOUT);
            ConnectionManager cm = zkClient.getConnectionManager();
            try {
                System.err.println("ISEXPIRED:" + cm.isLikelyExpired());
                assertFalse(cm.isLikelyExpired());

                zkClient.getSolrZooKeeper().pauseCnxn(TIMEOUT);

                long sessionId = zkClient.getSolrZooKeeper().getSessionId();
                server.expire(sessionId);
                Thread.sleep(TIMEOUT);

                assertTrue(cm.isLikelyExpired());
            } finally {
                cm.close();
                zkClient.close();
            }
        } finally {
            server.shutdown();
        }
    }

    public void testLikelyExpired() throws Exception {

        // setup a SolrZkClient to do some getBaseUrlForNodeName testing
        String zkDir = createTempDir("zkData").getAbsolutePath();

        ZkTestServer server = new ZkTestServer(zkDir);
        try {
            server.run();

            AbstractZkTestCase.tryCleanSolrZkNode(server.getZkHost());
            AbstractZkTestCase.makeSolrZkNode(server.getZkHost());

            SolrZkClient zkClient = new SolrZkClient(server.getZkAddress(), TIMEOUT);
            ConnectionManager cm = zkClient.getConnectionManager();
            try {
                assertFalse(cm.isLikelyExpired());
                assertTrue(cm.isConnected());
                cm.process(new WatchedEvent(EventType.None, KeeperState.Disconnected, ""));
                // disconnect shouldn't immediately set likelyExpired
                assertFalse(cm.isConnected());
                assertFalse(cm.isLikelyExpired());

                // but it should after the timeout
                Thread.sleep((long) (zkClient.getZkClientTimeout() * 1.5));
                assertFalse(cm.isConnected());
                assertTrue(cm.isLikelyExpired());

                // even if we disconnect immediately again
                cm.process(new WatchedEvent(EventType.None, KeeperState.Disconnected, ""));
                assertFalse(cm.isConnected());
                assertTrue(cm.isLikelyExpired());

                // reconnect -- should no longer be likely expired
                cm.process(new WatchedEvent(EventType.None, KeeperState.SyncConnected, ""));
                assertFalse(cm.isLikelyExpired());
                assertTrue(cm.isConnected());
            } finally {
                cm.close();
                zkClient.close();
            }
        } finally {
            server.shutdown();
        }
    }
}