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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.cluster.routing.allocation;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.ClusterName;
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.AllocationId;
import org.elasticsearch.cluster.routing.IndexRoutingTable;
import org.elasticsearch.cluster.routing.IndexShardRoutingTable;
import org.elasticsearch.cluster.routing.RoutingTable;
import org.elasticsearch.cluster.routing.ShardRouting;
import org.elasticsearch.cluster.routing.ShardRoutingState;
import org.elasticsearch.cluster.routing.TestShardRouting;
import org.elasticsearch.index.Index;
import org.elasticsearch.test.ESAllocationTestCase;
import java.util.Arrays;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.nullValue;
public class StartedShardsRoutingTests extends ESAllocationTestCase {
public void testStartedShardsMatching() {
AllocationService allocation = createAllocationService();
logger.info("--> building initial cluster state");
final IndexMetaData indexMetaData = IndexMetaData.builder("test")
.settings(settings(Version.CURRENT))
.numberOfShards(3).numberOfReplicas(0)
.build();
final Index index = indexMetaData.getIndex();
ClusterState.Builder stateBuilder = ClusterState.builder(ClusterName.DEFAULT)
.nodes(DiscoveryNodes.builder().put(newNode("node1")).put(newNode("node2")))
.metaData(MetaData.builder().put(indexMetaData, false));
final ShardRouting initShard = TestShardRouting.newShardRouting(index, 0, "node1", true, ShardRoutingState.INITIALIZING, 1);
final ShardRouting startedShard = TestShardRouting.newShardRouting(index, 1, "node2", true, ShardRoutingState.STARTED, 1);
final ShardRouting relocatingShard = TestShardRouting.newShardRouting(index, 2, "node1", "node2", true, ShardRoutingState.RELOCATING, 1);
stateBuilder.routingTable(RoutingTable.builder().add(IndexRoutingTable.builder(index)
.addIndexShard(new IndexShardRoutingTable.Builder(initShard.shardId()).addShard(initShard).build())
.addIndexShard(new IndexShardRoutingTable.Builder(startedShard.shardId()).addShard(startedShard).build())
.addIndexShard(new IndexShardRoutingTable.Builder(relocatingShard.shardId()).addShard(relocatingShard).build())).build());
ClusterState state = stateBuilder.build();
logger.info("--> test starting of shard");
RoutingAllocation.Result result = allocation.applyStartedShards(state, Arrays.asList(
TestShardRouting.newShardRouting(initShard.index(), initShard.id(), initShard.currentNodeId(), initShard.relocatingNodeId(), initShard.primary(),
ShardRoutingState.INITIALIZING, initShard.allocationId(), randomInt())), false);
assertTrue("failed to start " + initShard + "\ncurrent routing table:" + result.routingTable().prettyPrint(), result.changed());
assertTrue(initShard + "isn't started \ncurrent routing table:" + result.routingTable().prettyPrint(),
result.routingTable().index("test").shard(initShard.id()).allShardsStarted());
logger.info("--> testing shard variants that shouldn't match the initializing shard");
result = allocation.applyStartedShards(state, Arrays.asList(
TestShardRouting.newShardRouting(initShard.index(), initShard.id(), initShard.currentNodeId(), initShard.relocatingNodeId(), initShard.primary(),
ShardRoutingState.INITIALIZING, 1)), false);
assertFalse("wrong allocation id flag shouldn't start shard " + initShard + "\ncurrent routing table:" + result.routingTable().prettyPrint(), result.changed());
result = allocation.applyStartedShards(state, Arrays.asList(
TestShardRouting.newShardRouting(initShard.index(), initShard.id(), "some_node", initShard.currentNodeId(), initShard.primary(),
ShardRoutingState.INITIALIZING, AllocationId.newTargetRelocation(AllocationId.newRelocation(initShard.allocationId()))
, 1)), false);
assertFalse("relocating shard from node shouldn't start shard " + initShard + "\ncurrent routing table:" + result.routingTable().prettyPrint(), result.changed());
logger.info("--> testing double starting");
result = allocation.applyStartedShards(state, Arrays.asList(
TestShardRouting.newShardRouting(startedShard.index(), startedShard.id(), startedShard.currentNodeId(), startedShard.relocatingNodeId(), startedShard.primary(),
ShardRoutingState.INITIALIZING, startedShard.allocationId(), 1)), false);
assertFalse("duplicate starting of the same shard should be ignored \ncurrent routing table:" + result.routingTable().prettyPrint(), result.changed());
logger.info("--> testing starting of relocating shards");
final AllocationId targetAllocationId = AllocationId.newTargetRelocation(relocatingShard.allocationId());
result = allocation.applyStartedShards(state, Arrays.asList(
TestShardRouting.newShardRouting(relocatingShard.index(), relocatingShard.id(), relocatingShard.relocatingNodeId(), relocatingShard.currentNodeId(), relocatingShard.primary(),
ShardRoutingState.INITIALIZING, targetAllocationId, randomInt())), false);
assertTrue("failed to start " + relocatingShard + "\ncurrent routing table:" + result.routingTable().prettyPrint(), result.changed());
ShardRouting shardRouting = result.routingTable().index("test").shard(relocatingShard.id()).getShards().get(0);
assertThat(shardRouting.state(), equalTo(ShardRoutingState.STARTED));
assertThat(shardRouting.currentNodeId(), equalTo("node2"));
assertThat(shardRouting.relocatingNodeId(), nullValue());
logger.info("--> testing shard variants that shouldn't match the initializing relocating shard");
result = allocation.applyStartedShards(state, Arrays.asList(
TestShardRouting.newShardRouting(relocatingShard.index(), relocatingShard.id(), relocatingShard.relocatingNodeId(), relocatingShard.currentNodeId(), relocatingShard.primary(),
ShardRoutingState.INITIALIZING, relocatingShard.version())));
assertFalse("wrong allocation id shouldn't start shard" + relocatingShard + "\ncurrent routing table:" + result.routingTable().prettyPrint(), result.changed());
result = allocation.applyStartedShards(state, Arrays.asList(
TestShardRouting.newShardRouting(relocatingShard.index(), relocatingShard.id(), relocatingShard.relocatingNodeId(), relocatingShard.currentNodeId(), relocatingShard.primary(),
ShardRoutingState.INITIALIZING, relocatingShard.allocationId(), randomInt())), false);
assertFalse("wrong allocation id shouldn't start shard even if relocatingId==shard.id" + relocatingShard + "\ncurrent routing table:" + result.routingTable().prettyPrint(), result.changed());
}
}
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