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/*
* 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.client.transport;
import org.elasticsearch.action.admin.cluster.state.ClusterStateRequest;
import org.elasticsearch.action.admin.cluster.state.ClusterStateResponse;
import org.elasticsearch.action.support.PlainListenableActionFuture;
import org.elasticsearch.client.Requests;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.TransportAddress;
import org.elasticsearch.env.Environment;
import org.elasticsearch.node.Node;
import org.elasticsearch.node.internal.InternalSettingsPreparer;
import org.elasticsearch.test.ESIntegTestCase;
import org.elasticsearch.test.ESIntegTestCase.ClusterScope;
import org.elasticsearch.test.ESIntegTestCase.Scope;
import org.elasticsearch.transport.TransportService;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.Matchers.greaterThanOrEqualTo;
@ClusterScope(scope = Scope.TEST, numClientNodes = 0)
public class TransportClientRetryIT extends ESIntegTestCase {
public void testRetry() throws IOException, ExecutionException, InterruptedException {
Iterable<TransportService> instances = internalCluster().getInstances(TransportService.class);
TransportAddress[] addresses = new TransportAddress[internalCluster().size()];
int i = 0;
for (TransportService instance : instances) {
addresses[i++] = instance.boundAddress().publishAddress();
}
Settings.Builder builder = Settings.builder().put("client.transport.nodes_sampler_interval", "1s")
.put("node.name", "transport_client_retry_test")
.put(Node.NODE_MODE_SETTING.getKey(), internalCluster().getNodeMode())
.put(ClusterName.CLUSTER_NAME_SETTING.getKey(), internalCluster().getClusterName())
.put(Environment.PATH_HOME_SETTING.getKey(), createTempDir());
try (TransportClient client = TransportClient.builder().settings(builder.build()).build()) {
client.addTransportAddresses(addresses);
assertThat(client.connectedNodes().size(), equalTo(internalCluster().size()));
int size = cluster().size();
//kill all nodes one by one, leaving a single master/data node at the end of the loop
for (int j = 1; j < size; j++) {
internalCluster().stopRandomNode(input -> true);
ClusterStateRequest clusterStateRequest = Requests.clusterStateRequest().local(true);
ClusterState clusterState;
//use both variants of execute method: with and without listener
if (randomBoolean()) {
clusterState = client.admin().cluster().state(clusterStateRequest).get().getState();
} else {
PlainListenableActionFuture<ClusterStateResponse> future = new PlainListenableActionFuture<>(client.threadPool());
client.admin().cluster().state(clusterStateRequest, future);
clusterState = future.get().getState();
}
assertThat(clusterState.nodes().getSize(), greaterThanOrEqualTo(size - j));
assertThat(client.connectedNodes().size(), greaterThanOrEqualTo(size - j));
}
}
}
}
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