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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.routing.allocation;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.cluster.node.DiscoveryNodes;
import org.elasticsearch.cluster.routing.RoutingTable;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.cluster.routing.ShardRoutingState;
import org.elasticsearch.common.logging.ESLogger;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.test.ESAllocationTestCase;
import org.hamcrest.Matchers;
import java.util.List;
import static java.util.Collections.singletonMap;
import static org.elasticsearch.cluster.routing.ShardRoutingState.INITIALIZING;
import static org.elasticsearch.cluster.routing.ShardRoutingState.STARTED;
import static org.hamcrest.Matchers.equalTo;
/**
*/
public class FilterRoutingTests extends ESAllocationTestCase {
private final ESLogger logger = Loggers.getLogger(FilterRoutingTests.class);
public void testClusterFilters() {
AllocationService strategy = createAllocationService(Settings.builder()
.put("cluster.routing.allocation.include.tag1", "value1,value2")
.put("cluster.routing.allocation.exclude.tag1", "value3,value4")
.build());
logger.info("Building initial routing table");
MetaData metaData = MetaData.builder()
.put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(2).numberOfReplicas(1))
.build();
RoutingTable routingTable = RoutingTable.builder()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding four nodes and performing rerouting");
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder()
.add(newNode("node1", singletonMap("tag1", "value1")))
.add(newNode("node2", singletonMap("tag1", "value2")))
.add(newNode("node3", singletonMap("tag1", "value3")))
.add(newNode("node4", singletonMap("tag1", "value4")))
).build();
routingTable = strategy.reroute(clusterState, "reroute").routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(2));
logger.info("--> start the shards (primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
logger.info("--> start the shards (replicas)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
logger.info("--> make sure shards are only allocated on tag1 with value1 and value2");
List<ShardRouting> startedShards = clusterState.getRoutingNodes().shardsWithState(ShardRoutingState.STARTED);
assertThat(startedShards.size(), equalTo(4));
for (ShardRouting startedShard : startedShards) {
assertThat(startedShard.currentNodeId(), Matchers.anyOf(equalTo("node1"), equalTo("node2")));
}
}
public void testIndexFilters() {
AllocationService strategy = createAllocationService(Settings.builder()
.build());
logger.info("Building initial routing table");
MetaData metaData = MetaData.builder()
.put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)
.put("index.number_of_shards", 2)
.put("index.number_of_replicas", 1)
.put("index.routing.allocation.include.tag1", "value1,value2")
.put("index.routing.allocation.exclude.tag1", "value3,value4")
.build()))
.build();
RoutingTable routingTable = RoutingTable.builder()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding two nodes and performing rerouting");
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder()
.add(newNode("node1", singletonMap("tag1", "value1")))
.add(newNode("node2", singletonMap("tag1", "value2")))
.add(newNode("node3", singletonMap("tag1", "value3")))
.add(newNode("node4", singletonMap("tag1", "value4")))
).build();
routingTable = strategy.reroute(clusterState, "reroute").routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
assertThat(clusterState.getRoutingNodes().shardsWithState(INITIALIZING).size(), equalTo(2));
logger.info("--> start the shards (primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
logger.info("--> start the shards (replicas)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
logger.info("--> make sure shards are only allocated on tag1 with value1 and value2");
List<ShardRouting> startedShards = clusterState.getRoutingNodes().shardsWithState(ShardRoutingState.STARTED);
assertThat(startedShards.size(), equalTo(4));
for (ShardRouting startedShard : startedShards) {
assertThat(startedShard.currentNodeId(), Matchers.anyOf(equalTo("node1"), equalTo("node2")));
}
logger.info("--> switch between value2 and value4, shards should be relocating");
metaData = MetaData.builder()
.put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)
.put("index.number_of_shards", 2)
.put("index.number_of_replicas", 1)
.put("index.routing.allocation.include.tag1", "value1,value4")
.put("index.routing.allocation.exclude.tag1", "value2,value3")
.build()))
.build();
clusterState = ClusterState.builder(clusterState).metaData(metaData).build();
routingTable = strategy.reroute(clusterState, "reroute").routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
assertThat(clusterState.getRoutingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(2));
assertThat(clusterState.getRoutingNodes().shardsWithState(ShardRoutingState.RELOCATING).size(), equalTo(2));
assertThat(clusterState.getRoutingNodes().shardsWithState(ShardRoutingState.INITIALIZING).size(), equalTo(2));
logger.info("--> finish relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
startedShards = clusterState.getRoutingNodes().shardsWithState(ShardRoutingState.STARTED);
assertThat(startedShards.size(), equalTo(4));
for (ShardRouting startedShard : startedShards) {
assertThat(startedShard.currentNodeId(), Matchers.anyOf(equalTo("node1"), equalTo("node4")));
}
}
public void testConcurrentRecoveriesAfterShardsCannotRemainOnNode() {
AllocationService strategy = createAllocationService(Settings.builder().build());
logger.info("Building initial routing table");
MetaData metaData = MetaData.builder()
.put(IndexMetaData.builder("test1").settings(settings(Version.CURRENT)).numberOfShards(2).numberOfReplicas(0))
.put(IndexMetaData.builder("test2").settings(settings(Version.CURRENT)).numberOfShards(2).numberOfReplicas(0))
.build();
RoutingTable routingTable = RoutingTable.builder()
.addAsNew(metaData.index("test1"))
.addAsNew(metaData.index("test2"))
.build();
ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding two nodes and performing rerouting");
DiscoveryNode node1 = newNode("node1", singletonMap("tag1", "value1"));
DiscoveryNode node2 = newNode("node2", singletonMap("tag1", "value2"));
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(node1).add(node2)).build();
routingTable = strategy.reroute(clusterState, "reroute").routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
assertThat(clusterState.getRoutingNodes().node(node1.getId()).numberOfShardsWithState(INITIALIZING), equalTo(2));
assertThat(clusterState.getRoutingNodes().node(node2.getId()).numberOfShardsWithState(INITIALIZING), equalTo(2));
logger.info("--> start the shards (only primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
logger.info("--> make sure all shards are started");
assertThat(clusterState.getRoutingNodes().shardsWithState(STARTED).size(), equalTo(4));
logger.info("--> disable allocation for node1 and reroute");
strategy = createAllocationService(Settings.builder()
.put("cluster.routing.allocation.node_concurrent_recoveries", "1")
.put("cluster.routing.allocation.exclude.tag1", "value1")
.build());
logger.info("--> move shards from node1 to node2");
routingTable = strategy.reroute(clusterState, "reroute").routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
logger.info("--> check that concurrent recoveries only allows 1 shard to move");
assertThat(clusterState.getRoutingNodes().node(node1.getId()).numberOfShardsWithState(STARTED), equalTo(1));
assertThat(clusterState.getRoutingNodes().node(node2.getId()).numberOfShardsWithState(INITIALIZING), equalTo(1));
assertThat(clusterState.getRoutingNodes().node(node2.getId()).numberOfShardsWithState(STARTED), equalTo(2));
logger.info("--> start the shards (only primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
logger.info("--> move second shard from node1 to node2");
routingTable = strategy.reroute(clusterState, "reroute").routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
assertThat(clusterState.getRoutingNodes().node(node2.getId()).numberOfShardsWithState(INITIALIZING), equalTo(1));
assertThat(clusterState.getRoutingNodes().node(node2.getId()).numberOfShardsWithState(STARTED), equalTo(3));
logger.info("--> start the shards (only primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
routingTable = strategy.reroute(clusterState, "reroute").routingTable();
clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
assertThat(clusterState.getRoutingNodes().node(node2.getId()).numberOfShardsWithState(STARTED), equalTo(4));
}
}
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