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* Licensed to ElasticSearch and Shay Banon under one
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* 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
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* KIND, either express or implied. See the License for the
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* under the License.
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package org.elasticsearch.test.unit.cluster.routing.allocation;
import com.google.common.collect.ImmutableMap;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.routing.RoutingTable;
import org.elasticsearch.cluster.routing.ShardRoutingState;
import org.elasticsearch.cluster.routing.allocation.AllocationService;
import org.elasticsearch.common.logging.ESLogger;
import org.elasticsearch.common.logging.Loggers;
import org.testng.annotations.Test;
import static org.elasticsearch.cluster.ClusterState.newClusterStateBuilder;
import static org.elasticsearch.cluster.metadata.IndexMetaData.newIndexMetaDataBuilder;
import static org.elasticsearch.cluster.metadata.MetaData.newMetaDataBuilder;
import static org.elasticsearch.cluster.node.DiscoveryNodes.newNodesBuilder;
import static org.elasticsearch.cluster.routing.RoutingBuilders.routingTable;
import static org.elasticsearch.cluster.routing.ShardRoutingState.*;
import static org.elasticsearch.common.settings.ImmutableSettings.settingsBuilder;
import static org.elasticsearch.test.unit.cluster.routing.allocation.RoutingAllocationTests.newNode;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.*;
/**
*/
@Test
public class AwarenessAllocationTests {
private final ESLogger logger = Loggers.getLogger(AwarenessAllocationTests.class);
@Test
public void moveShardOnceNewNodeWithAttributeAdded1() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.concurrent_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.put("cluster.routing.allocation.awareness.attributes", "rack_id")
.build());
logger.info("Building initial routing table");
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test").numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding two nodes on same rack and do rerouting");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder()
.put(newNode("node1", ImmutableMap.of("rack_id", "1")))
.put(newNode("node2", ImmutableMap.of("rack_id", "1")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
logger.info("--> start the shards (primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
logger.info("--> start the shards (replicas)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(2));
logger.info("--> add a new node with a new rack and reroute");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3", ImmutableMap.of("rack_id", "2")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).get(0).relocatingNodeId(), equalTo("node3"));
logger.info("--> complete relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(2));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
logger.info("--> add another node with a new rack, make sure nothing moves");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node4", ImmutableMap.of("rack_id", "3")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
assertThat(routingTable, sameInstance(clusterState.routingTable()));
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(2));
}
@Test
public void moveShardOnceNewNodeWithAttributeAdded2() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.concurrent_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.put("cluster.routing.allocation.awareness.attributes", "rack_id")
.build());
logger.info("Building initial routing table");
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test").numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding two nodes on same rack and do rerouting");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder()
.put(newNode("node1", ImmutableMap.of("rack_id", "1")))
.put(newNode("node2", ImmutableMap.of("rack_id", "1")))
.put(newNode("node3", ImmutableMap.of("rack_id", "1")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
logger.info("--> start the shards (primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
logger.info("--> start the shards (replicas)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(2));
logger.info("--> add a new node with a new rack and reroute");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node4", ImmutableMap.of("rack_id", "2")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).get(0).relocatingNodeId(), equalTo("node4"));
logger.info("--> complete relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(2));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
logger.info("--> add another node with a new rack, make sure nothing moves");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node5", ImmutableMap.of("rack_id", "3")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
assertThat(routingTable, sameInstance(clusterState.routingTable()));
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(2));
}
@Test
public void moveShardOnceNewNodeWithAttributeAdded3() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.node_concurrent_recoveries", 10)
.put("cluster.routing.allocation.node_initial_primaries_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.put("cluster.routing.allocation.cluster_concurrent_rebalance", -1)
.put("cluster.routing.allocation.awareness.attributes", "rack_id")
.build());
logger.info("Building initial routing table");
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test").numberOfShards(5).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding two nodes on same rack and do rerouting");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder()
.put(newNode("node1", ImmutableMap.of("rack_id", "1")))
.put(newNode("node2", ImmutableMap.of("rack_id", "1")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(5));
logger.info("--> start the shards (primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
logger.info("--> start the shards (replicas)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(10));
logger.info("--> add a new node with a new rack and reroute");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3", ImmutableMap.of("rack_id", "2")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(5));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).size(), equalTo(5));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).size(), equalTo(5));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).get(0).relocatingNodeId(), equalTo("node3"));
logger.info("--> complete initializing");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
logger.info("--> run it again, since we still might have relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(10));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
logger.info("--> add another node with a new rack, some more relocation should happen");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node4", ImmutableMap.of("rack_id", "3")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(RELOCATING).size(), greaterThan(0));
logger.info("--> complete relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(10));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
}
@Test
public void moveShardOnceNewNodeWithAttributeAdded4() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.node_concurrent_recoveries", 10)
.put("cluster.routing.allocation.node_initial_primaries_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.put("cluster.routing.allocation.cluster_concurrent_rebalance", -1)
.put("cluster.routing.allocation.awareness.attributes", "rack_id")
.build());
logger.info("Building initial routing table");
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test1").numberOfShards(5).numberOfReplicas(1))
.put(newIndexMetaDataBuilder("test2").numberOfShards(5).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.addAsNew(metaData.index("test1"))
.addAsNew(metaData.index("test2"))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding two nodes on same rack and do rerouting");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder()
.put(newNode("node1", ImmutableMap.of("rack_id", "1")))
.put(newNode("node2", ImmutableMap.of("rack_id", "1")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(10));
logger.info("--> start the shards (primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
logger.info("--> start the shards (replicas)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(20));
logger.info("--> add a new node with a new rack and reroute");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3", ImmutableMap.of("rack_id", "2")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(10));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).size(), equalTo(10));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).size(), equalTo(10));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).get(0).relocatingNodeId(), equalTo("node3"));
logger.info("--> complete initializing");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
logger.info("--> run it again, since we still might have relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(20));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
logger.info("--> add another node with a new rack, some more relocation should happen");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node4", ImmutableMap.of("rack_id", "3")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(RELOCATING).size(), greaterThan(0));
logger.info("--> complete relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(20));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
}
@Test
public void moveShardOnceNewNodeWithAttributeAdded5() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.concurrent_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.put("cluster.routing.allocation.awareness.attributes", "rack_id")
.build());
logger.info("Building initial routing table");
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test").numberOfShards(1).numberOfReplicas(2))
.build();
RoutingTable routingTable = routingTable()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding two nodes on same rack and do rerouting");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder()
.put(newNode("node1", ImmutableMap.of("rack_id", "1")))
.put(newNode("node2", ImmutableMap.of("rack_id", "1")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
logger.info("--> start the shards (primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
logger.info("--> start the shards (replicas)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(2));
logger.info("--> add a new node with a new rack and reroute");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3", ImmutableMap.of("rack_id", "2")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(2));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).get(0).currentNodeId(), equalTo("node3"));
logger.info("--> complete relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(3));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
logger.info("--> add another node with a new rack, we will have another relocation");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node4", ImmutableMap.of("rack_id", "3")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(2));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).get(0).relocatingNodeId(), equalTo("node4"));
logger.info("--> complete relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(3));
logger.info("--> make sure another reroute does not move things");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
}
@Test
public void moveShardOnceNewNodeWithAttributeAdded6() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.concurrent_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.put("cluster.routing.allocation.awareness.attributes", "rack_id")
.build());
logger.info("Building initial routing table");
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test").numberOfShards(1).numberOfReplicas(3))
.build();
RoutingTable routingTable = routingTable()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding two nodes on same rack and do rerouting");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder()
.put(newNode("node1", ImmutableMap.of("rack_id", "1")))
.put(newNode("node2", ImmutableMap.of("rack_id", "1")))
.put(newNode("node3", ImmutableMap.of("rack_id", "1")))
.put(newNode("node4", ImmutableMap.of("rack_id", "1")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
logger.info("--> start the shards (primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
logger.info("--> start the shards (replicas)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(4));
logger.info("--> add a new node with a new rack and reroute");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node5", ImmutableMap.of("rack_id", "2")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(3));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).get(0).relocatingNodeId(), equalTo("node5"));
logger.info("--> complete relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(4));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
logger.info("--> add another node with a new rack, we will have another relocation");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node6", ImmutableMap.of("rack_id", "3")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(3));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.RELOCATING).get(0).relocatingNodeId(), equalTo("node6"));
logger.info("--> complete relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(4));
logger.info("--> make sure another reroute does not move things");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
}
@Test
public void fullAwareness1() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.concurrent_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.put("cluster.routing.allocation.awareness.force.rack_id.values", "1,2")
.put("cluster.routing.allocation.awareness.attributes", "rack_id")
.build());
logger.info("Building initial routing table");
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test").numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding two nodes on same rack and do rerouting");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder()
.put(newNode("node1", ImmutableMap.of("rack_id", "1")))
.put(newNode("node2", ImmutableMap.of("rack_id", "1")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
logger.info("--> start the shards (primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
logger.info("--> replica will not start because we have only one rack value");
assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(0));
logger.info("--> add a new node with a new rack and reroute");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3", ImmutableMap.of("rack_id", "2")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).get(0).currentNodeId(), equalTo("node3"));
logger.info("--> complete relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(2));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
logger.info("--> add another node with a new rack, make sure nothing moves");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node4", ImmutableMap.of("rack_id", "3")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
assertThat(routingTable, sameInstance(clusterState.routingTable()));
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(2));
}
@Test
public void fullAwareness2() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.concurrent_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.put("cluster.routing.allocation.awareness.force.rack_id.values", "1,2")
.put("cluster.routing.allocation.awareness.attributes", "rack_id")
.build());
logger.info("Building initial routing table");
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test").numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding two nodes on same rack and do rerouting");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder()
.put(newNode("node1", ImmutableMap.of("rack_id", "1")))
.put(newNode("node2", ImmutableMap.of("rack_id", "1")))
.put(newNode("node3", ImmutableMap.of("rack_id", "1")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(1));
logger.info("--> start the shards (primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
logger.info("--> replica will not start because we have only one rack value");
assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(0));
logger.info("--> add a new node with a new rack and reroute");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node4", ImmutableMap.of("rack_id", "2")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).size(), equalTo(1));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).get(0).currentNodeId(), equalTo("node4"));
logger.info("--> complete relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(2));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
logger.info("--> add another node with a new rack, make sure nothing moves");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node5", ImmutableMap.of("rack_id", "3")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
assertThat(routingTable, sameInstance(clusterState.routingTable()));
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(STARTED).size(), equalTo(2));
}
@Test
public void fullAwareness3() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.node_concurrent_recoveries", 10)
.put("cluster.routing.allocation.node_initial_primaries_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.put("cluster.routing.allocation.cluster_concurrent_rebalance", -1)
.put("cluster.routing.allocation.awareness.force.rack_id.values", "1,2")
.put("cluster.routing.allocation.awareness.attributes", "rack_id")
.build());
logger.info("Building initial routing table");
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test1").numberOfShards(5).numberOfReplicas(1))
.put(newIndexMetaDataBuilder("test2").numberOfShards(5).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.addAsNew(metaData.index("test1"))
.addAsNew(metaData.index("test2"))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding two nodes on same rack and do rerouting");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder()
.put(newNode("node1", ImmutableMap.of("rack_id", "1")))
.put(newNode("node2", ImmutableMap.of("rack_id", "1")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(10));
logger.info("--> start the shards (primaries)");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(10));
logger.info("--> add a new node with a new rack and reroute");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3", ImmutableMap.of("rack_id", "2")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(10));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).size(), equalTo(10));
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.INITIALIZING).get(0).currentNodeId(), equalTo("node3"));
logger.info("--> complete initializing");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
logger.info("--> run it again, since we still might have relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(20));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
logger.info("--> add another node with a new rack, some more relocation should happen");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node4", ImmutableMap.of("rack_id", "3")))
).build();
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(RELOCATING).size(), greaterThan(0));
logger.info("--> complete relocation");
routingTable = strategy.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(clusterState.routingNodes().shardsWithState(ShardRoutingState.STARTED).size(), equalTo(20));
logger.info("--> do another reroute, make sure nothing moves");
assertThat(strategy.reroute(clusterState).routingTable(), sameInstance(clusterState.routingTable()));
}
}