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* Licensed to Elastic Search and Shay Banon under one
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* distributed with this work for additional information
* regarding copyright ownership. Elastic Search 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
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* Unless required by applicable law or agreed to in writing,
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* KIND, either express or implied. See the License for the
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package org.elasticsearch.cluster.routing.allocation;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.routing.RoutingNodes;
import org.elasticsearch.cluster.routing.RoutingTable;
import org.elasticsearch.common.logging.ESLogger;
import org.elasticsearch.common.logging.Loggers;
import org.testng.annotations.Test;
import static org.elasticsearch.cluster.ClusterState.*;
import static org.elasticsearch.cluster.metadata.IndexMetaData.*;
import static org.elasticsearch.cluster.metadata.MetaData.*;
import static org.elasticsearch.cluster.node.DiscoveryNodes.*;
import static org.elasticsearch.cluster.routing.RoutingBuilders.*;
import static org.elasticsearch.cluster.routing.ShardRoutingState.*;
import static org.elasticsearch.cluster.routing.allocation.RoutingAllocationTests.*;
import static org.elasticsearch.common.settings.ImmutableSettings.*;
import static org.hamcrest.MatcherAssert.*;
import static org.hamcrest.Matchers.*;
@Test
public class ClusterRebalanceRoutingTests {
private final ESLogger logger = Loggers.getLogger(ClusterRebalanceRoutingTests.class);
@Test public void testAlways() {
ShardsAllocation strategy = new ShardsAllocation(settingsBuilder().put("cluster.routing.allocation.allow_rebalance", ClusterRebalanceNodeAllocation.ClusterRebalanceType.ALWAYS.toString()).build());
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test1").numberOfShards(1).numberOfReplicas(1))
.put(newIndexMetaDataBuilder("test2").numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
.add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("start two nodes");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2"))).build();
RoutingTable prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start all the primary shards for test1, replicas will start initializing");
RoutingNodes routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start the test1 replica shards");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("now, start 1 more node, check that rebalancing will happen (for test1) because we set it to always");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3")))
.build();
prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
assertThat(routingNodes.node("node3").shards().size(), equalTo(1));
assertThat(routingNodes.node("node3").shards().get(0).shardId().index().name(), equalTo("test1"));
}
@Test public void testClusterPrimariesActive1() {
ShardsAllocation strategy = new ShardsAllocation(settingsBuilder().put("cluster.routing.allocation.allow_rebalance", ClusterRebalanceNodeAllocation.ClusterRebalanceType.INDICES_PRIMARIES_ACTIVE.toString()).build());
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test1").numberOfShards(1).numberOfReplicas(1))
.put(newIndexMetaDataBuilder("test2").numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
.add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("start two nodes");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2"))).build();
RoutingTable prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start all the primary shards for test1, replicas will start initializing");
RoutingNodes routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start the test1 replica shards");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start all the primary shards for test2, replicas will start initializing");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test2", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
}
logger.info("now, start 1 more node, check that rebalancing happen (for test1) because we set it to primaries_active");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3")))
.build();
prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
assertThat(routingNodes.node("node3").shards().size(), equalTo(1));
assertThat(routingNodes.node("node3").shards().get(0).shardId().index().name(), equalTo("test1"));
}
@Test public void testClusterPrimariesActive2() {
ShardsAllocation strategy = new ShardsAllocation(settingsBuilder().put("cluster.routing.allocation.allow_rebalance", ClusterRebalanceNodeAllocation.ClusterRebalanceType.INDICES_PRIMARIES_ACTIVE.toString()).build());
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test1").numberOfShards(1).numberOfReplicas(1))
.put(newIndexMetaDataBuilder("test2").numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
.add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("start two nodes");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2"))).build();
RoutingTable prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start all the primary shards for test1, replicas will start initializing");
RoutingNodes routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start the test1 replica shards");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("now, start 1 more node, check that rebalancing will not happen (for test1) because we set it to primaries_active");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3")))
.build();
prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
assertThat(routingNodes.node("node3"), nullValue());
}
@Test public void testClusterAllActive1() {
ShardsAllocation strategy = new ShardsAllocation(settingsBuilder().put("cluster.routing.allocation.allow_rebalance", ClusterRebalanceNodeAllocation.ClusterRebalanceType.INDICES_ALL_ACTIVE.toString()).build());
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test1").numberOfShards(1).numberOfReplicas(1))
.put(newIndexMetaDataBuilder("test2").numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
.add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("start two nodes");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2"))).build();
RoutingTable prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start all the primary shards for test1, replicas will start initializing");
RoutingNodes routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start the test1 replica shards");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start all the primary shards for test2, replicas will start initializing");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test2", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
}
logger.info("start the test2 replica shards");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test2", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
}
logger.info("now, start 1 more node, check that rebalancing happen (for test1) because we set it to all_active");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3")))
.build();
prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
assertThat(routingNodes.node("node3").shards().size(), equalTo(1));
assertThat(routingNodes.node("node3").shards().get(0).shardId().index().name(), equalTo("test1"));
}
@Test public void testClusterAllActive2() {
ShardsAllocation strategy = new ShardsAllocation(settingsBuilder().put("cluster.routing.allocation.allow_rebalance", ClusterRebalanceNodeAllocation.ClusterRebalanceType.INDICES_ALL_ACTIVE.toString()).build());
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test1").numberOfShards(1).numberOfReplicas(1))
.put(newIndexMetaDataBuilder("test2").numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
.add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("start two nodes");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2"))).build();
RoutingTable prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start all the primary shards for test1, replicas will start initializing");
RoutingNodes routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start the test1 replica shards");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("now, start 1 more node, check that rebalancing will not happen (for test1) because we set it to all_active");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3")))
.build();
prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
assertThat(routingNodes.node("node3"), nullValue());
}
@Test public void testClusterAllActive3() {
ShardsAllocation strategy = new ShardsAllocation(settingsBuilder().put("cluster.routing.allocation.allow_rebalance", ClusterRebalanceNodeAllocation.ClusterRebalanceType.INDICES_ALL_ACTIVE.toString()).build());
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test1").numberOfShards(1).numberOfReplicas(1))
.put(newIndexMetaDataBuilder("test2").numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.add(indexRoutingTable("test1").initializeEmpty(metaData.index("test1")))
.add(indexRoutingTable("test2").initializeEmpty(metaData.index("test2")))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("start two nodes");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1")).put(newNode("node2"))).build();
RoutingTable prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start all the primary shards for test1, replicas will start initializing");
RoutingNodes routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start the test1 replica shards");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("start all the primary shards for test2, replicas will start initializing");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test2", INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
for (int i = 0; i < routingTable.index("test1").shards().size(); i++) {
assertThat(routingTable.index("test1").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
}
for (int i = 0; i < routingTable.index("test2").shards().size(); i++) {
assertThat(routingTable.index("test2").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test2").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
}
logger.info("now, start 1 more node, check that rebalancing will not happen (for test1) because we set it to all_active");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3")))
.build();
prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
assertThat(routingNodes.node("node3"), nullValue());
}
}