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* the Apache License, Version 2.0 (the "License"); you may
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* 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
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package org.elasticsearch.client.transport;
import com.google.common.base.Predicate;
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.ImmutableSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.TransportAddress;
import org.elasticsearch.plugins.PluginsService;
import org.elasticsearch.test.ElasticsearchIntegrationTest;
import org.elasticsearch.test.InternalTestCluster;
import org.elasticsearch.transport.TransportService;
import org.junit.Test;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import static org.elasticsearch.common.settings.ImmutableSettings.settingsBuilder;
import static org.elasticsearch.test.ElasticsearchIntegrationTest.ClusterScope;
import static org.elasticsearch.test.ElasticsearchIntegrationTest.Scope;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.Matchers.greaterThanOrEqualTo;
@ClusterScope(scope = Scope.TEST, numClientNodes = 0)
public class TransportClientRetryTests extends ElasticsearchIntegrationTest {
@Test
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();
}
ImmutableSettings.Builder builder = settingsBuilder().put("client.transport.nodes_sampler_interval", "1s")
.put("name", "transport_client_retry_test")
.put("node.mode", InternalTestCluster.nodeMode())
.put("plugins." + PluginsService.LOAD_PLUGIN_FROM_CLASSPATH, false)
.put(ClusterName.SETTING, internalCluster().getClusterName())
.put("config.ignore_system_properties", true);
try (TransportClient transportClient = new TransportClient(builder.build())) {
transportClient.addTransportAddresses(addresses);
assertThat(transportClient.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(new Predicate<Settings>() {
@Override
public boolean apply(Settings input) {
return true;
}
});
ClusterStateRequest clusterStateRequest = Requests.clusterStateRequest().local(true);
ClusterState clusterState;
//use both variants of execute method: with and without listener
if (randomBoolean()) {
clusterState = transportClient.admin().cluster().state(clusterStateRequest).get().getState();
} else {
PlainListenableActionFuture<ClusterStateResponse> future = new PlainListenableActionFuture<>(clusterStateRequest.listenerThreaded(), transportClient.threadPool());
transportClient.admin().cluster().state(clusterStateRequest, future);
clusterState = future.get().getState();
}
assertThat(clusterState.nodes().size(), greaterThanOrEqualTo(size - j));
assertThat(transportClient.connectedNodes().size(), greaterThanOrEqualTo(size - j));
}
}
}
}