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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.action.admin.cluster.stats;
import org.elasticsearch.Version;
import org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse;
import org.elasticsearch.cluster.health.ClusterHealthStatus;
import org.elasticsearch.client.Requests;
import org.elasticsearch.common.Priority;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.util.concurrent.EsExecutors;
import org.elasticsearch.index.store.Store;
import org.elasticsearch.test.ESIntegTestCase;
import org.elasticsearch.test.ESIntegTestCase.ClusterScope;
import org.elasticsearch.test.ESIntegTestCase.Scope;
import org.hamcrest.Matchers;
import java.io.IOException;
import static org.elasticsearch.common.settings.Settings.settingsBuilder;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
@ClusterScope(scope = Scope.SUITE, numDataNodes = 1, numClientNodes = 0)
public class ClusterStatsIT extends ESIntegTestCase {
private void assertCounts(ClusterStatsNodes.Counts counts, int total, int masterOnly, int dataOnly, int masterData, int client) {
assertThat(counts.getTotal(), Matchers.equalTo(total));
assertThat(counts.getMasterOnly(), Matchers.equalTo(masterOnly));
assertThat(counts.getDataOnly(), Matchers.equalTo(dataOnly));
assertThat(counts.getMasterData(), Matchers.equalTo(masterData));
assertThat(counts.getClient(), Matchers.equalTo(client));
}
private void waitForNodes(int numNodes) {
ClusterHealthResponse actionGet = client().admin().cluster()
.health(Requests.clusterHealthRequest().waitForEvents(Priority.LANGUID).waitForNodes(Integer.toString(numNodes))).actionGet();
assertThat(actionGet.isTimedOut(), is(false));
}
public void testNodeCounts() {
ClusterStatsResponse response = client().admin().cluster().prepareClusterStats().get();
assertCounts(response.getNodesStats().getCounts(), 1, 0, 0, 1, 0);
internalCluster().startNode(Settings.builder().put("node.data", false));
waitForNodes(2);
response = client().admin().cluster().prepareClusterStats().get();
assertCounts(response.getNodesStats().getCounts(), 2, 1, 0, 1, 0);
internalCluster().startNode(Settings.builder().put("node.master", false));
waitForNodes(3);
response = client().admin().cluster().prepareClusterStats().get();
assertCounts(response.getNodesStats().getCounts(), 3, 1, 1, 1, 0);
internalCluster().startNode(Settings.builder().put("node.client", true));
waitForNodes(4);
response = client().admin().cluster().prepareClusterStats().get();
assertCounts(response.getNodesStats().getCounts(), 4, 1, 1, 1, 1);
}
private void assertShardStats(ClusterStatsIndices.ShardStats stats, int indices, int total, int primaries, double replicationFactor) {
assertThat(stats.getIndices(), Matchers.equalTo(indices));
assertThat(stats.getTotal(), Matchers.equalTo(total));
assertThat(stats.getPrimaries(), Matchers.equalTo(primaries));
assertThat(stats.getReplication(), Matchers.equalTo(replicationFactor));
}
public void testIndicesShardStats() {
ClusterStatsResponse response = client().admin().cluster().prepareClusterStats().get();
assertThat(response.getStatus(), Matchers.equalTo(ClusterHealthStatus.GREEN));
prepareCreate("test1").setSettings("number_of_shards", 2, "number_of_replicas", 1).get();
ensureYellow();
response = client().admin().cluster().prepareClusterStats().get();
assertThat(response.getStatus(), Matchers.equalTo(ClusterHealthStatus.YELLOW));
assertThat(response.indicesStats.getDocs().getCount(), Matchers.equalTo(0l));
assertThat(response.indicesStats.getIndexCount(), Matchers.equalTo(1));
assertShardStats(response.getIndicesStats().getShards(), 1, 2, 2, 0.0);
// add another node, replicas should get assigned
internalCluster().startNode();
ensureGreen();
index("test1", "type", "1", "f", "f");
refresh(); // make the doc visible
response = client().admin().cluster().prepareClusterStats().get();
assertThat(response.getStatus(), Matchers.equalTo(ClusterHealthStatus.GREEN));
assertThat(response.indicesStats.getDocs().getCount(), Matchers.equalTo(1l));
assertShardStats(response.getIndicesStats().getShards(), 1, 4, 2, 1.0);
prepareCreate("test2").setSettings("number_of_shards", 3, "number_of_replicas", 0).get();
ensureGreen();
response = client().admin().cluster().prepareClusterStats().get();
assertThat(response.getStatus(), Matchers.equalTo(ClusterHealthStatus.GREEN));
assertThat(response.indicesStats.getIndexCount(), Matchers.equalTo(2));
assertShardStats(response.getIndicesStats().getShards(), 2, 7, 5, 2.0 / 5);
assertThat(response.getIndicesStats().getShards().getAvgIndexPrimaryShards(), Matchers.equalTo(2.5));
assertThat(response.getIndicesStats().getShards().getMinIndexPrimaryShards(), Matchers.equalTo(2));
assertThat(response.getIndicesStats().getShards().getMaxIndexPrimaryShards(), Matchers.equalTo(3));
assertThat(response.getIndicesStats().getShards().getAvgIndexShards(), Matchers.equalTo(3.5));
assertThat(response.getIndicesStats().getShards().getMinIndexShards(), Matchers.equalTo(3));
assertThat(response.getIndicesStats().getShards().getMaxIndexShards(), Matchers.equalTo(4));
assertThat(response.getIndicesStats().getShards().getAvgIndexReplication(), Matchers.equalTo(0.5));
assertThat(response.getIndicesStats().getShards().getMinIndexReplication(), Matchers.equalTo(0.0));
assertThat(response.getIndicesStats().getShards().getMaxIndexReplication(), Matchers.equalTo(1.0));
}
public void testValuesSmokeScreen() throws IOException {
internalCluster().ensureAtMostNumDataNodes(5);
internalCluster().ensureAtLeastNumDataNodes(1);
assertAcked(prepareCreate("test1").setSettings(settingsBuilder().put(Store.INDEX_STORE_STATS_REFRESH_INTERVAL, 0).build()));
index("test1", "type", "1", "f", "f");
/*
* Ensure at least one shard is allocated otherwise the FS stats might
* return 0. This happens if the File#getTotalSpace() and friends is called
* on a directory that doesn't exist or has not yet been created.
*/
ensureYellow("test1");
ClusterStatsResponse response = client().admin().cluster().prepareClusterStats().get();
String msg = response.toString();
assertThat(msg, response.getTimestamp(), Matchers.greaterThan(946681200000l)); // 1 Jan 2000
assertThat(msg, response.indicesStats.getStore().getSizeInBytes(), Matchers.greaterThan(0l));
assertThat(msg, response.nodesStats.getFs().getTotal().bytes(), Matchers.greaterThan(0l));
assertThat(msg, response.nodesStats.getJvm().getVersions().size(), Matchers.greaterThan(0));
assertThat(msg, response.nodesStats.getVersions().size(), Matchers.greaterThan(0));
assertThat(msg, response.nodesStats.getVersions().contains(Version.CURRENT), Matchers.equalTo(true));
assertThat(msg, response.nodesStats.getPlugins().size(), Matchers.greaterThanOrEqualTo(0));
assertThat(msg, response.nodesStats.getProcess().count, Matchers.greaterThan(0));
// 0 happens when not supported on platform
assertThat(msg, response.nodesStats.getProcess().getAvgOpenFileDescriptors(), Matchers.greaterThanOrEqualTo(0L));
// these can be -1 if not supported on platform
assertThat(msg, response.nodesStats.getProcess().getMinOpenFileDescriptors(), Matchers.greaterThanOrEqualTo(-1L));
assertThat(msg, response.nodesStats.getProcess().getMaxOpenFileDescriptors(), Matchers.greaterThanOrEqualTo(-1L));
}
public void testAllocatedProcessors() throws Exception {
// stop all other nodes
internalCluster().ensureAtMostNumDataNodes(0);
// start one node with 7 processors.
internalCluster().startNodesAsync(Settings.builder().put(EsExecutors.PROCESSORS, 7).build()).get();
waitForNodes(1);
ClusterStatsResponse response = client().admin().cluster().prepareClusterStats().get();
assertThat(response.getNodesStats().getOs().getAllocatedProcessors(), equalTo(7));
}
public void testClusterStatusWhenStateNotRecovered() throws Exception {
// stop all other nodes
internalCluster().ensureAtMostNumDataNodes(0);
internalCluster().startNode(Settings.builder().put("gateway.recover_after_nodes", 2).build());
ClusterStatsResponse response = client().admin().cluster().prepareClusterStats().get();
assertThat(response.getStatus(), equalTo(ClusterHealthStatus.RED));
internalCluster().ensureAtLeastNumDataNodes(3);
// wait for the cluster status to settle
ensureGreen();
response = client().admin().cluster().prepareClusterStats().get();
assertThat(response.getStatus(), equalTo(ClusterHealthStatus.GREEN));
}
}
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