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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.cluster.ack;
import org.elasticsearch.action.admin.cluster.node.info.NodeInfo;
import org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse;
import org.elasticsearch.action.admin.cluster.settings.ClusterUpdateSettingsResponse;
import org.elasticsearch.client.Client;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.routing.IndexRoutingTable;
import org.elasticsearch.cluster.routing.IndexShardRoutingTable;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.cluster.routing.allocation.decider.ThrottlingAllocationDecider;
import org.elasticsearch.common.settings.ImmutableSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.discovery.DiscoverySettings;
import org.elasticsearch.test.ElasticsearchIntegrationTest;
import org.junit.Test;
import static org.elasticsearch.common.settings.ImmutableSettings.settingsBuilder;
import static org.elasticsearch.test.ElasticsearchIntegrationTest.ClusterScope;
import static org.elasticsearch.test.ElasticsearchIntegrationTest.Scope.TEST;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked;
import static org.hamcrest.Matchers.equalTo;
@ClusterScope(scope = TEST)
public class AckClusterUpdateSettingsTests extends ElasticsearchIntegrationTest {
@Override
protected Settings nodeSettings(int nodeOrdinal) {
return ImmutableSettings.builder()
.put(super.nodeSettings(nodeOrdinal))
//make sure that enough concurrent reroutes can happen at the same time
//we have a minimum of 2 nodes, and a maximum of 10 shards, thus 5 should be enough
.put(ThrottlingAllocationDecider.CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_RECOVERIES, 5)
.build();
}
@Override
protected int minimumNumberOfShards() {
return cluster().numDataNodes();
}
@Override
protected int numberOfReplicas() {
return 0;
}
private void removePublishTimeout() {
//to test that the acknowledgement mechanism is working we better disable the wait for publish
//otherwise the operation is most likely acknowledged even if it doesn't support ack
assertAcked(client().admin().cluster().prepareUpdateSettings().setTransientSettings(ImmutableSettings.builder().put(DiscoverySettings.PUBLISH_TIMEOUT, "0")));
}
@Test
public void testClusterUpdateSettingsAcknowledgement() {
createIndex("test");
ensureGreen();
// now that the cluster is stable, remove timeout
removePublishTimeout();
NodesInfoResponse nodesInfo = client().admin().cluster().prepareNodesInfo().get();
String excludedNodeId = null;
for (NodeInfo nodeInfo : nodesInfo) {
if (nodeInfo.getNode().isDataNode()) {
excludedNodeId = nodeInfo.getNode().id();
break;
}
}
assertNotNull(excludedNodeId);
ClusterUpdateSettingsResponse clusterUpdateSettingsResponse = client().admin().cluster().prepareUpdateSettings()
.setTransientSettings(settingsBuilder().put("cluster.routing.allocation.exclude._id", excludedNodeId)).get();
assertAcked(clusterUpdateSettingsResponse);
assertThat(clusterUpdateSettingsResponse.getTransientSettings().get("cluster.routing.allocation.exclude._id"), equalTo(excludedNodeId));
for (Client client : clients()) {
ClusterState clusterState = getLocalClusterState(client);
assertThat(clusterState.routingNodes().metaData().transientSettings().get("cluster.routing.allocation.exclude._id"), equalTo(excludedNodeId));
for (IndexRoutingTable indexRoutingTable : clusterState.routingTable()) {
for (IndexShardRoutingTable indexShardRoutingTable : indexRoutingTable) {
for (ShardRouting shardRouting : indexShardRoutingTable) {
if (clusterState.nodes().get(shardRouting.currentNodeId()).id().equals(excludedNodeId)) {
//if the shard is still there it must be relocating and all nodes need to know, since the request was acknowledged
//reroute happens as part of the update settings and we made sure no throttling comes into the picture via settings
assertThat(shardRouting.relocating(), equalTo(true));
}
}
}
}
}
}
@Test
public void testClusterUpdateSettingsNoAcknowledgement() {
client().admin().indices().prepareCreate("test")
.setSettings(settingsBuilder()
.put("number_of_shards", between(cluster().numDataNodes(), DEFAULT_MAX_NUM_SHARDS))
.put("number_of_replicas", 0)).get();
ensureGreen();
// now that the cluster is stable, remove timeout
removePublishTimeout();
NodesInfoResponse nodesInfo = client().admin().cluster().prepareNodesInfo().get();
String excludedNodeId = null;
for (NodeInfo nodeInfo : nodesInfo) {
if (nodeInfo.getNode().isDataNode()) {
excludedNodeId = nodeInfo.getNode().id();
break;
}
}
assertNotNull(excludedNodeId);
ClusterUpdateSettingsResponse clusterUpdateSettingsResponse = client().admin().cluster().prepareUpdateSettings().setTimeout("0s")
.setTransientSettings(settingsBuilder().put("cluster.routing.allocation.exclude._id", excludedNodeId)).get();
assertThat(clusterUpdateSettingsResponse.isAcknowledged(), equalTo(false));
assertThat(clusterUpdateSettingsResponse.getTransientSettings().get("cluster.routing.allocation.exclude._id"), equalTo(excludedNodeId));
}
private static ClusterState getLocalClusterState(Client client) {
return client.admin().cluster().prepareState().setLocal(true).get().getState();
}
}