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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
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.test.unit.cluster.routing.allocation;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.routing.ImmutableShardRouting;
import org.elasticsearch.cluster.routing.RoutingNodes;
import org.elasticsearch.cluster.routing.RoutingTable;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.cluster.routing.allocation.AllocationService;
import org.elasticsearch.cluster.routing.allocation.RoutingAllocationResult;
import org.elasticsearch.cluster.routing.allocation.command.AllocationCommands;
import org.elasticsearch.cluster.routing.allocation.command.MoveAllocationCommand;
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 FailedShardsRoutingTests {
private final ESLogger logger = Loggers.getLogger(FailedShardsRoutingTests.class);
@Test
public void testFailedShardPrimaryRelocatingToAndFrom() {
AllocationService allocation = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.concurrent_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.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 2 nodes on same rack and do rerouting");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder()
.put(newNode("node1"))
.put(newNode("node2"))
).build();
RoutingAllocationResult rerouteResult = allocation.reroute(clusterState);
clusterState = newClusterStateBuilder().state(clusterState).routingTable(rerouteResult.routingTable()).build();
// starting primaries
rerouteResult = allocation.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
clusterState = newClusterStateBuilder().state(clusterState).routingTable(rerouteResult.routingTable()).build();
// starting replicas
rerouteResult = allocation.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
clusterState = newClusterStateBuilder().state(clusterState).routingTable(rerouteResult.routingTable()).build();
logger.info("--> verifying all is allocated");
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node1").shards().get(0).state(), equalTo(STARTED));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().get(0).state(), equalTo(STARTED));
logger.info("--> adding additional node");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().putAll(clusterState.nodes())
.put(newNode("node3"))
).build();
rerouteResult = allocation.reroute(clusterState);
clusterState = newClusterStateBuilder().state(clusterState).routingTable(rerouteResult.routingTable()).build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node1").shards().get(0).state(), equalTo(STARTED));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().get(0).state(), equalTo(STARTED));
assertThat(clusterState.routingNodes().node("node3").shards().size(), equalTo(0));
String origPrimaryNodeId = clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId();
String origReplicaNodeId = clusterState.routingTable().index("test").shard(0).replicaShards().get(0).currentNodeId();
logger.info("--> moving primary shard to node3");
rerouteResult = allocation.reroute(clusterState, new AllocationCommands(
new MoveAllocationCommand(clusterState.routingTable().index("test").shard(0).primaryShard().shardId(), clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), "node3"))
);
assertThat(rerouteResult.changed(), equalTo(true));
clusterState = newClusterStateBuilder().state(clusterState).routingTable(rerouteResult.routingTable()).build();
assertThat(clusterState.routingNodes().node(origPrimaryNodeId).shards().get(0).state(), equalTo(RELOCATING));
assertThat(clusterState.routingNodes().node("node3").shards().get(0).state(), equalTo(INITIALIZING));
logger.info("--> fail primary shard recovering instance on node3 being initialized");
rerouteResult = allocation.applyFailedShard(clusterState, new ImmutableShardRouting(clusterState.routingNodes().node("node3").shards().get(0)));
clusterState = newClusterStateBuilder().state(clusterState).routingTable(rerouteResult.routingTable()).build();
assertThat(clusterState.routingNodes().node(origPrimaryNodeId).shards().get(0).state(), equalTo(STARTED));
assertThat(clusterState.routingNodes().node("node3").shards().size(), equalTo(0));
logger.info("--> moving primary shard to node3");
rerouteResult = allocation.reroute(clusterState, new AllocationCommands(
new MoveAllocationCommand(clusterState.routingTable().index("test").shard(0).primaryShard().shardId(), clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), "node3"))
);
assertThat(rerouteResult.changed(), equalTo(true));
clusterState = newClusterStateBuilder().state(clusterState).routingTable(rerouteResult.routingTable()).build();
assertThat(clusterState.routingNodes().node(origPrimaryNodeId).shards().get(0).state(), equalTo(RELOCATING));
assertThat(clusterState.routingNodes().node("node3").shards().get(0).state(), equalTo(INITIALIZING));
logger.info("--> fail primary shard recovering instance on node1 being relocated");
rerouteResult = allocation.applyFailedShard(clusterState, new ImmutableShardRouting(clusterState.routingNodes().node(origPrimaryNodeId).shards().get(0)));
clusterState = newClusterStateBuilder().state(clusterState).routingTable(rerouteResult.routingTable()).build();
// check promotion of replica to primary
assertThat(clusterState.routingNodes().node(origReplicaNodeId).shards().get(0).state(), equalTo(STARTED));
assertThat(clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), equalTo(origReplicaNodeId));
assertThat(clusterState.routingTable().index("test").shard(0).replicaShards().get(0).currentNodeId(), anyOf(equalTo(origPrimaryNodeId), equalTo("node3")));
}
@Test
public void failPrimaryStartedCheckReplicaElected() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.concurrent_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.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 and performing rerouting");
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();
logger.info("Start the shards (primaries)");
RoutingNodes routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(prevRoutingTable != routingTable, equalTo(true));
assertThat(routingTable.index("test").shards().size(), equalTo(1));
for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test").shard(i).primaryShard().currentNodeId(), anyOf(equalTo("node1"), equalTo("node2")));
assertThat(routingTable.index("test").shard(i).replicaShards().size(), equalTo(1));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).currentNodeId(), anyOf(equalTo("node2"), equalTo("node1")));
}
logger.info("Start the shards (backups)");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(prevRoutingTable != routingTable, equalTo(true));
assertThat(routingTable.index("test").shards().size(), equalTo(1));
for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test").shard(i).primaryShard().currentNodeId(), anyOf(equalTo("node1"), equalTo("node2")));
assertThat(routingTable.index("test").shard(i).replicaShards().size(), equalTo(1));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).currentNodeId(), anyOf(equalTo("node2"), equalTo("node1")));
}
logger.info("fail the primary shard, will have no place to be rerouted to (single node), so stays unassigned");
ShardRouting shardToFail = new ImmutableShardRouting(routingTable.index("test").shard(0).primaryShard());
prevRoutingTable = routingTable;
routingTable = strategy.applyFailedShard(clusterState, shardToFail).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
assertThat(prevRoutingTable != routingTable, equalTo(true));
assertThat(routingTable.index("test").shard(0).size(), equalTo(2));
assertThat(routingTable.index("test").shard(0).shards().size(), equalTo(2));
assertThat(routingTable.index("test").shard(0).primaryShard().currentNodeId(), not(equalTo(shardToFail.currentNodeId())));
assertThat(routingTable.index("test").shard(0).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test").shard(0).primaryShard().currentNodeId(), anyOf(equalTo("node1"), equalTo("node2")));
assertThat(routingTable.index("test").shard(0).replicaShards().size(), equalTo(1));
assertThat(routingTable.index("test").shard(0).replicaShards().get(0).state(), equalTo(UNASSIGNED));
logger.info("fail the shard again, check that nothing happens");
assertThat(strategy.applyFailedShard(clusterState, shardToFail).changed(), equalTo(false));
}
@Test
public void firstAllocationFailureSingleNode() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.concurrent_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.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 single node and performing rerouting");
clusterState = newClusterStateBuilder().state(clusterState).nodes(newNodesBuilder().put(newNode("node1"))).build();
RoutingTable prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(prevRoutingTable != routingTable, equalTo(true));
assertThat(routingTable.index("test").shards().size(), equalTo(1));
for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test").shard(i).primaryShard().currentNodeId(), equalTo("node1"));
assertThat(routingTable.index("test").shard(i).replicaShards().size(), equalTo(1));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("fail the first shard, will have no place to be rerouted to (single node), so stays unassigned");
prevRoutingTable = routingTable;
routingTable = strategy.applyFailedShard(clusterState, new ImmutableShardRouting("test", 0, "node1", true, INITIALIZING, 0)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
RoutingNodes routingNodes = clusterState.routingNodes();
assertThat(prevRoutingTable != routingTable, equalTo(true));
assertThat(routingTable.index("test").shards().size(), equalTo(1));
for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(UNASSIGNED));
assertThat(routingTable.index("test").shard(i).primaryShard().currentNodeId(), nullValue());
assertThat(routingTable.index("test").shard(i).replicaShards().size(), equalTo(1));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("fail the shard again, see that nothing happens");
assertThat(strategy.applyFailedShard(clusterState, new ImmutableShardRouting("test", 0, "node1", true, INITIALIZING, 0)).changed(), equalTo(false));
}
@Test
public void firstAllocationFailureTwoNodes() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.concurrent_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.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 and performing rerouting");
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();
assertThat(prevRoutingTable != routingTable, equalTo(true));
assertThat(routingTable.index("test").shards().size(), equalTo(1));
for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test").shard(i).primaryShard().currentNodeId(), equalTo("node1"));
assertThat(routingTable.index("test").shard(i).replicaShards().size(), equalTo(1));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("fail the first shard, will start INITIALIZING on the second node");
prevRoutingTable = routingTable;
routingTable = strategy.applyFailedShard(clusterState, new ImmutableShardRouting("test", 0, "node1", true, INITIALIZING, 0)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
RoutingNodes routingNodes = clusterState.routingNodes();
assertThat(prevRoutingTable != routingTable, equalTo(true));
assertThat(routingTable.index("test").shards().size(), equalTo(1));
for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test").shard(i).primaryShard().currentNodeId(), equalTo("node2"));
assertThat(routingTable.index("test").shard(i).replicaShards().size(), equalTo(1));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
}
logger.info("fail the shard again, see that nothing happens");
assertThat(strategy.applyFailedShard(clusterState, new ImmutableShardRouting("test", 0, "node1", true, INITIALIZING, 0)).changed(), equalTo(false));
}
@Test
public void rebalanceFailure() {
AllocationService strategy = new AllocationService(settingsBuilder()
.put("cluster.routing.allocation.concurrent_recoveries", 10)
.put("cluster.routing.allocation.allow_rebalance", "always")
.build());
logger.info("Building initial routing table");
MetaData metaData = newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test").numberOfShards(2).numberOfReplicas(1))
.build();
RoutingTable routingTable = routingTable()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = newClusterStateBuilder().metaData(metaData).routingTable(routingTable).build();
logger.info("Adding two nodes and performing rerouting");
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();
logger.info("Start the shards (primaries)");
RoutingNodes routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(prevRoutingTable != routingTable, equalTo(true));
assertThat(routingTable.index("test").shards().size(), equalTo(2));
for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test").shard(i).primaryShard().currentNodeId(), anyOf(equalTo("node1"), equalTo("node2")));
assertThat(routingTable.index("test").shard(i).replicaShards().size(), equalTo(1));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).currentNodeId(), anyOf(equalTo("node2"), equalTo("node1")));
}
logger.info("Start the shards (backups)");
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
assertThat(prevRoutingTable != routingTable, equalTo(true));
assertThat(routingTable.index("test").shards().size(), equalTo(2));
for (int i = 0; i < routingTable.index("test").shards().size(); i++) {
assertThat(routingTable.index("test").shard(i).size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).shards().size(), equalTo(2));
assertThat(routingTable.index("test").shard(i).primaryShard().state(), equalTo(STARTED));
assertThat(routingTable.index("test").shard(i).primaryShard().currentNodeId(), anyOf(equalTo("node1"), equalTo("node2")));
assertThat(routingTable.index("test").shard(i).replicaShards().size(), equalTo(1));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
assertThat(routingTable.index("test").shard(i).replicaShards().get(0).currentNodeId(), anyOf(equalTo("node2"), equalTo("node1")));
}
logger.info("Adding third node and reroute");
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(prevRoutingTable != routingTable, equalTo(true));
assertThat(routingTable.index("test").shards().size(), equalTo(2));
assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED, RELOCATING), equalTo(2));
assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), lessThan(3));
assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED, RELOCATING), equalTo(2));
assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), lessThan(3));
assertThat(routingNodes.node("node3").numberOfShardsWithState(INITIALIZING), equalTo(1));
logger.info("Fail the shards on node 3");
ShardRouting shardToFail = routingNodes.node("node3").shards().get(0);
routingNodes = clusterState.routingNodes();
prevRoutingTable = routingTable;
routingTable = strategy.applyFailedShard(clusterState, new ImmutableShardRouting(shardToFail)).routingTable();
clusterState = newClusterStateBuilder().state(clusterState).routingTable(routingTable).build();
routingNodes = clusterState.routingNodes();
assertThat(prevRoutingTable != routingTable, equalTo(true));
assertThat(routingTable.index("test").shards().size(), equalTo(2));
assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED, RELOCATING), equalTo(2));
assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), lessThan(3));
assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED, RELOCATING), equalTo(2));
assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), lessThan(3));
assertThat(routingNodes.node("node3").numberOfShardsWithState(INITIALIZING), equalTo(1));
// make sure the failedShard is not INITIALIZING again on node3
assertThat(routingNodes.node("node3").shards().get(0).shardId(), not(equalTo(shardToFail.shardId())));
}
}