/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.discovery.zen.ping.multicast;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.cluster.node.DiscoveryNodes;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.common.settings.ImmutableSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.discovery.zen.ping.PingContextProvider;
import org.elasticsearch.discovery.zen.ping.ZenPing;
import org.elasticsearch.node.service.NodeService;
import org.elasticsearch.test.ElasticsearchTestCase;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import org.elasticsearch.transport.local.LocalTransport;
import org.junit.Test;
import java.net.DatagramPacket;
import java.net.InetAddress;
import java.net.MulticastSocket;
import static org.hamcrest.Matchers.equalTo;
/**
*
*/
public class MulticastZenPingTests extends ElasticsearchTestCase {
private Settings buildRandomMulticast(Settings settings) {
ImmutableSettings.Builder builder = ImmutableSettings.builder().put(settings);
builder.put("discovery.zen.ping.multicast.group", "224.2.3." + randomIntBetween(0, 255));
builder.put("discovery.zen.ping.multicast.port", randomIntBetween(55000, 56000));
if (randomBoolean()) {
builder.put("discovery.zen.ping.multicast.shared", randomBoolean());
}
return builder.build();
}
@Test
public void testSimplePings() throws InterruptedException {
Settings settings = ImmutableSettings.EMPTY;
settings = buildRandomMulticast(settings);
ThreadPool threadPool = new ThreadPool("testSimplePings");
final ClusterName clusterName = new ClusterName("test");
final TransportService transportServiceA = new TransportService(new LocalTransport(settings, threadPool, Version.CURRENT), threadPool).start();
final DiscoveryNode nodeA = new DiscoveryNode("A", transportServiceA.boundAddress().publishAddress(), Version.CURRENT);
final TransportService transportServiceB = new TransportService(new LocalTransport(settings, threadPool, Version.CURRENT), threadPool).start();
final DiscoveryNode nodeB = new DiscoveryNode("B", transportServiceB.boundAddress().publishAddress(), Version.CURRENT);
MulticastZenPing zenPingA = new MulticastZenPing(threadPool, transportServiceA, clusterName, Version.CURRENT);
zenPingA.setPingContextProvider(new PingContextProvider() {
@Override
public DiscoveryNodes nodes() {
return DiscoveryNodes.builder().put(nodeA).localNodeId("A").build();
}
@Override
public NodeService nodeService() {
return null;
}
@Override
public boolean nodeHasJoinedClusterOnce() {
return false;
}
});
zenPingA.start();
MulticastZenPing zenPingB = new MulticastZenPing(threadPool, transportServiceB, clusterName, Version.CURRENT);
zenPingB.setPingContextProvider(new PingContextProvider() {
@Override
public DiscoveryNodes nodes() {
return DiscoveryNodes.builder().put(nodeB).localNodeId("B").build();
}
@Override
public NodeService nodeService() {
return null;
}
@Override
public boolean nodeHasJoinedClusterOnce() {
return true;
}
});
zenPingB.start();
try {
logger.info("ping from A");
ZenPing.PingResponse[] pingResponses = zenPingA.pingAndWait(TimeValue.timeValueSeconds(1));
assertThat(pingResponses.length, equalTo(1));
assertThat(pingResponses[0].node().id(), equalTo("B"));
assertTrue(pingResponses[0].hasJoinedOnce());
logger.info("ping from B");
pingResponses = zenPingB.pingAndWait(TimeValue.timeValueSeconds(1));
assertThat(pingResponses.length, equalTo(1));
assertThat(pingResponses[0].node().id(), equalTo("A"));
assertFalse(pingResponses[0].hasJoinedOnce());
} finally {
zenPingA.close();
zenPingB.close();
transportServiceA.close();
transportServiceB.close();
terminate(threadPool);
}
}
@Test
public void testExternalPing() throws Exception {
Settings settings = ImmutableSettings.EMPTY;
settings = buildRandomMulticast(settings);
final ThreadPool threadPool = new ThreadPool("testExternalPing");
final ClusterName clusterName = new ClusterName("test");
final TransportService transportServiceA = new TransportService(new LocalTransport(settings, threadPool, Version.CURRENT), threadPool).start();
final DiscoveryNode nodeA = new DiscoveryNode("A", transportServiceA.boundAddress().publishAddress(), Version.CURRENT);
MulticastZenPing zenPingA = new MulticastZenPing(threadPool, transportServiceA, clusterName, Version.CURRENT);
zenPingA.setPingContextProvider(new PingContextProvider() {
@Override
public DiscoveryNodes nodes() {
return DiscoveryNodes.builder().put(nodeA).localNodeId("A").build();
}
@Override
public NodeService nodeService() {
return null;
}
@Override
public boolean nodeHasJoinedClusterOnce() {
return false;
}
});
zenPingA.start();
MulticastSocket multicastSocket = null;
try {
Loggers.getLogger(MulticastZenPing.class).setLevel("TRACE");
multicastSocket = new MulticastSocket(54328);
multicastSocket.setReceiveBufferSize(2048);
multicastSocket.setSendBufferSize(2048);
multicastSocket.setSoTimeout(60000);
DatagramPacket datagramPacket = new DatagramPacket(new byte[2048], 2048, InetAddress.getByName("224.2.2.4"), 54328);
XContentBuilder builder = XContentFactory.jsonBuilder().startObject().startObject("request").field("cluster_name", "test").endObject().endObject();
datagramPacket.setData(builder.bytes().toBytes());
multicastSocket.send(datagramPacket);
Thread.sleep(100);
} finally {
Loggers.getLogger(MulticastZenPing.class).setLevel("INFO");
if (multicastSocket != null) multicastSocket.close();
zenPingA.close();
terminate(threadPool);
}
}
}