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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.cluster.allocation;
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.logging.ESLogger;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.test.ESIntegTestCase;
import org.elasticsearch.test.ESIntegTestCase.ClusterScope;
import org.elasticsearch.test.ESIntegTestCase.Scope;
import java.util.List;
import static org.elasticsearch.common.settings.Settings.settingsBuilder;
import static org.hamcrest.Matchers.equalTo;
@ClusterScope(scope= Scope.TEST, numDataNodes =0)
public class FilteringAllocationIT extends ESIntegTestCase {
private final ESLogger logger = Loggers.getLogger(FilteringAllocationIT.class);
public void testDecommissionNodeNoReplicas() throws Exception {
logger.info("--> starting 2 nodes");
List<String> nodesIds = internalCluster().startNodesAsync(2).get();
final String node_0 = nodesIds.get(0);
final String node_1 = nodesIds.get(1);
assertThat(cluster().size(), equalTo(2));
logger.info("--> creating an index with no replicas");
client().admin().indices().prepareCreate("test")
.setSettings(settingsBuilder().put("index.number_of_replicas", 0))
.execute().actionGet();
ensureGreen();
logger.info("--> index some data");
for (int i = 0; i < 100; i++) {
client().prepareIndex("test", "type", Integer.toString(i)).setSource("field", "value" + i).execute().actionGet();
}
client().admin().indices().prepareRefresh().execute().actionGet();
assertThat(client().prepareSearch().setSize(0).setQuery(QueryBuilders.matchAllQuery()).execute().actionGet().getHits().totalHits(), equalTo(100L));
logger.info("--> decommission the second node");
client().admin().cluster().prepareUpdateSettings()
.setTransientSettings(settingsBuilder().put("cluster.routing.allocation.exclude._name", node_1))
.execute().actionGet();
waitForRelocation();
logger.info("--> verify all are allocated on node1 now");
ClusterState clusterState = client().admin().cluster().prepareState().execute().actionGet().getState();
for (IndexRoutingTable indexRoutingTable : clusterState.routingTable()) {
for (IndexShardRoutingTable indexShardRoutingTable : indexRoutingTable) {
for (ShardRouting shardRouting : indexShardRoutingTable) {
assertThat(clusterState.nodes().get(shardRouting.currentNodeId()).name(), equalTo(node_0));
}
}
}
client().admin().indices().prepareRefresh().execute().actionGet();
assertThat(client().prepareSearch().setSize(0).setQuery(QueryBuilders.matchAllQuery()).execute().actionGet().getHits().totalHits(), equalTo(100L));
}
public void testDisablingAllocationFiltering() throws Exception {
logger.info("--> starting 2 nodes");
List<String> nodesIds = internalCluster().startNodesAsync(2).get();
final String node_0 = nodesIds.get(0);
final String node_1 = nodesIds.get(1);
assertThat(cluster().size(), equalTo(2));
logger.info("--> creating an index with no replicas");
client().admin().indices().prepareCreate("test")
.setSettings(settingsBuilder().put("index.number_of_replicas", 0))
.execute().actionGet();
ensureGreen();
logger.info("--> index some data");
for (int i = 0; i < 100; i++) {
client().prepareIndex("test", "type", Integer.toString(i)).setSource("field", "value" + i).execute().actionGet();
}
client().admin().indices().prepareRefresh().execute().actionGet();
assertThat(client().prepareSearch().setSize(0).setQuery(QueryBuilders.matchAllQuery()).execute().actionGet().getHits().totalHits(), equalTo(100L));
ClusterState clusterState = client().admin().cluster().prepareState().execute().actionGet().getState();
IndexRoutingTable indexRoutingTable = clusterState.routingTable().index("test");
int numShardsOnNode1 = 0;
for (IndexShardRoutingTable indexShardRoutingTable : indexRoutingTable) {
for (ShardRouting shardRouting : indexShardRoutingTable) {
if ("node1".equals(clusterState.nodes().get(shardRouting.currentNodeId()).name())) {
numShardsOnNode1++;
}
}
}
if (numShardsOnNode1 > ThrottlingAllocationDecider.DEFAULT_CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_RECOVERIES) {
client().admin().cluster().prepareUpdateSettings()
.setTransientSettings(settingsBuilder().put("cluster.routing.allocation.node_concurrent_recoveries", numShardsOnNode1)).execute().actionGet();
// make sure we can recover all the nodes at once otherwise we might run into a state where one of the shards has not yet started relocating
// but we already fired up the request to wait for 0 relocating shards.
}
logger.info("--> remove index from the first node");
client().admin().indices().prepareUpdateSettings("test")
.setSettings(settingsBuilder().put("index.routing.allocation.exclude._name", node_0))
.execute().actionGet();
client().admin().cluster().prepareReroute().get();
ensureGreen();
logger.info("--> verify all shards are allocated on node_1 now");
clusterState = client().admin().cluster().prepareState().execute().actionGet().getState();
indexRoutingTable = clusterState.routingTable().index("test");
for (IndexShardRoutingTable indexShardRoutingTable : indexRoutingTable) {
for (ShardRouting shardRouting : indexShardRoutingTable) {
assertThat(clusterState.nodes().get(shardRouting.currentNodeId()).name(), equalTo(node_1));
}
}
logger.info("--> disable allocation filtering ");
client().admin().indices().prepareUpdateSettings("test")
.setSettings(settingsBuilder().put("index.routing.allocation.exclude._name", ""))
.execute().actionGet();
client().admin().cluster().prepareReroute().get();
ensureGreen();
logger.info("--> verify that there are shards allocated on both nodes now");
clusterState = client().admin().cluster().prepareState().execute().actionGet().getState();
assertThat(clusterState.routingTable().index("test").numberOfNodesShardsAreAllocatedOn(), equalTo(2));
}
}
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