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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.cluster.routing.allocation;
import org.apache.logging.log4j.Logger;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.node.DiscoveryNodes;
import org.elasticsearch.cluster.routing.RoutingTable;
import org.elasticsearch.cluster.routing.allocation.command.AllocationCommands;
import org.elasticsearch.cluster.routing.allocation.command.MoveAllocationCommand;
import org.elasticsearch.cluster.routing.allocation.decider.ClusterRebalanceAllocationDecider;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.cluster.ESAllocationTestCase;
import static org.elasticsearch.cluster.routing.ShardRoutingState.INITIALIZING;
import static org.elasticsearch.cluster.routing.ShardRoutingState.RELOCATING;
import static org.elasticsearch.cluster.routing.ShardRoutingState.STARTED;
import static org.hamcrest.Matchers.equalTo;
/**
*/
public class DeadNodesAllocationTests extends ESAllocationTestCase {
private final Logger logger = Loggers.getLogger(DeadNodesAllocationTests.class);
public void testSimpleDeadNodeOnStartedPrimaryShard() {
AllocationService allocation = createAllocationService(Settings.builder()
.put("cluster.routing.allocation.node_concurrent_recoveries", 10)
.put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), "always")
.build());
logger.info("--> building initial routing table");
MetaData metaData = MetaData.builder()
.put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = RoutingTable.builder()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding 2 nodes on same rack and do rerouting");
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder()
.add(newNode("node1"))
.add(newNode("node2"))
).build();
RoutingAllocation.Result rerouteResult = allocation.reroute(clusterState, "reroute");
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
// starting primaries
rerouteResult = allocation.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
// starting replicas
rerouteResult = allocation.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
logger.info("--> verifying all is allocated");
assertThat(clusterState.getRoutingNodes().node("node1").size(), equalTo(1));
assertThat(clusterState.getRoutingNodes().node("node1").iterator().next().state(), equalTo(STARTED));
assertThat(clusterState.getRoutingNodes().node("node2").size(), equalTo(1));
assertThat(clusterState.getRoutingNodes().node("node2").iterator().next().state(), equalTo(STARTED));
logger.info("--> fail node with primary");
String nodeIdToFail = clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId();
String nodeIdRemaining = nodeIdToFail.equals("node1") ? "node2" : "node1";
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder()
.add(newNode(nodeIdRemaining))
).build();
rerouteResult = allocation.deassociateDeadNodes(clusterState, true, "reroute");
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
assertThat(clusterState.getRoutingNodes().node(nodeIdRemaining).iterator().next().primary(), equalTo(true));
assertThat(clusterState.getRoutingNodes().node(nodeIdRemaining).iterator().next().state(), equalTo(STARTED));
}
public void testDeadNodeWhileRelocatingOnToNode() {
AllocationService allocation = createAllocationService(Settings.builder()
.put("cluster.routing.allocation.node_concurrent_recoveries", 10)
.put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), "always")
.build());
logger.info("--> building initial routing table");
MetaData metaData = MetaData.builder()
.put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = RoutingTable.builder()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding 2 nodes on same rack and do rerouting");
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder()
.add(newNode("node1"))
.add(newNode("node2"))
).build();
RoutingAllocation.Result rerouteResult = allocation.reroute(clusterState, "reroute");
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
// starting primaries
rerouteResult = allocation.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
// starting replicas
rerouteResult = allocation.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
logger.info("--> verifying all is allocated");
assertThat(clusterState.getRoutingNodes().node("node1").size(), equalTo(1));
assertThat(clusterState.getRoutingNodes().node("node1").iterator().next().state(), equalTo(STARTED));
assertThat(clusterState.getRoutingNodes().node("node2").size(), equalTo(1));
assertThat(clusterState.getRoutingNodes().node("node2").iterator().next().state(), equalTo(STARTED));
logger.info("--> adding additional node");
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes())
.add(newNode("node3"))
).build();
rerouteResult = allocation.reroute(clusterState, "reroute");
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
assertThat(clusterState.getRoutingNodes().node("node1").size(), equalTo(1));
assertThat(clusterState.getRoutingNodes().node("node1").iterator().next().state(), equalTo(STARTED));
assertThat(clusterState.getRoutingNodes().node("node2").size(), equalTo(1));
assertThat(clusterState.getRoutingNodes().node("node2").iterator().next().state(), equalTo(STARTED));
assertThat(clusterState.getRoutingNodes().node("node3").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("test", 0, clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), "node3")),
false, false);
assertThat(rerouteResult.changed(), equalTo(true));
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
assertThat(clusterState.getRoutingNodes().node(origPrimaryNodeId).iterator().next().state(), equalTo(RELOCATING));
assertThat(clusterState.getRoutingNodes().node("node3").iterator().next().state(), equalTo(INITIALIZING));
logger.info("--> fail primary shard recovering instance on node3 being initialized by killing node3");
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder()
.add(newNode(origPrimaryNodeId))
.add(newNode(origReplicaNodeId))
).build();
rerouteResult = allocation.deassociateDeadNodes(clusterState, true, "reroute");
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
assertThat(clusterState.getRoutingNodes().node(origPrimaryNodeId).iterator().next().state(), equalTo(STARTED));
assertThat(clusterState.getRoutingNodes().node(origReplicaNodeId).iterator().next().state(), equalTo(STARTED));
}
public void testDeadNodeWhileRelocatingOnFromNode() {
AllocationService allocation = createAllocationService(Settings.builder()
.put("cluster.routing.allocation.node_concurrent_recoveries", 10)
.put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), "always")
.build());
logger.info("--> building initial routing table");
MetaData metaData = MetaData.builder()
.put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = RoutingTable.builder()
.addAsNew(metaData.index("test"))
.build();
ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(routingTable).build();
logger.info("--> adding 2 nodes on same rack and do rerouting");
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder()
.add(newNode("node1"))
.add(newNode("node2"))
).build();
RoutingAllocation.Result rerouteResult = allocation.reroute(clusterState, "reroute");
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
// starting primaries
rerouteResult = allocation.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
// starting replicas
rerouteResult = allocation.applyStartedShards(clusterState, clusterState.getRoutingNodes().shardsWithState(INITIALIZING));
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
logger.info("--> verifying all is allocated");
assertThat(clusterState.getRoutingNodes().node("node1").size(), equalTo(1));
assertThat(clusterState.getRoutingNodes().node("node1").iterator().next().state(), equalTo(STARTED));
assertThat(clusterState.getRoutingNodes().node("node2").size(), equalTo(1));
assertThat(clusterState.getRoutingNodes().node("node2").iterator().next().state(), equalTo(STARTED));
logger.info("--> adding additional node");
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes())
.add(newNode("node3"))
).build();
rerouteResult = allocation.reroute(clusterState, "reroute");
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
assertThat(clusterState.getRoutingNodes().node("node1").size(), equalTo(1));
assertThat(clusterState.getRoutingNodes().node("node1").iterator().next().state(), equalTo(STARTED));
assertThat(clusterState.getRoutingNodes().node("node2").size(), equalTo(1));
assertThat(clusterState.getRoutingNodes().node("node2").iterator().next().state(), equalTo(STARTED));
assertThat(clusterState.getRoutingNodes().node("node3").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("test",0 , clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId(), "node3")),
false, false);
assertThat(rerouteResult.changed(), equalTo(true));
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
assertThat(clusterState.getRoutingNodes().node(origPrimaryNodeId).iterator().next().state(), equalTo(RELOCATING));
assertThat(clusterState.getRoutingNodes().node("node3").iterator().next().state(), equalTo(INITIALIZING));
logger.info("--> fail primary shard recovering instance on 'origPrimaryNodeId' being relocated");
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder()
.add(newNode("node3"))
.add(newNode(origReplicaNodeId))
).build();
rerouteResult = allocation.deassociateDeadNodes(clusterState, true, "reroute");
clusterState = ClusterState.builder(clusterState).routingResult(rerouteResult).build();
assertThat(clusterState.getRoutingNodes().node(origReplicaNodeId).iterator().next().state(), equalTo(STARTED));
assertThat(clusterState.getRoutingNodes().node("node3").iterator().next().state(), equalTo(INITIALIZING));
}
}
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