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* 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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package org.elasticsearch.cluster.routing.allocation;
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.RoutingNodes;
import org.elasticsearch.cluster.routing.RoutingTable;
import org.elasticsearch.cluster.routing.allocation.decider.ClusterRebalanceAllocationDecider;
import org.elasticsearch.common.logging.ESLogger;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.test.ElasticsearchAllocationTestCase;
import org.junit.Test;
import static org.elasticsearch.cluster.routing.ShardRoutingState.*;
import static org.elasticsearch.common.settings.ImmutableSettings.settingsBuilder;
import static org.hamcrest.Matchers.equalTo;
public class ShardVersioningTests extends ElasticsearchAllocationTestCase {
private final ESLogger logger = Loggers.getLogger(ShardVersioningTests.class);
@Test
public void simple() {
AllocationService strategy = createAllocationService(settingsBuilder().put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE,
ClusterRebalanceAllocationDecider.ClusterRebalanceType.ALWAYS.toString()).build());
MetaData metaData = MetaData.builder()
.put(IndexMetaData.builder("test1").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1))
.put(IndexMetaData.builder("test2").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1))
.build();
RoutingTable routingTable = RoutingTable.builder()
.addAsNew(metaData.index("test1"))
.addAsNew(metaData.index("test2"))
.build();
ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.DEFAULT).metaData(metaData).routingTable(routingTable).build();
logger.info("start two nodes");
clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().put(newNode("node1")).put(newNode("node2"))).build();
RoutingTable prevRoutingTable = routingTable;
routingTable = strategy.reroute(clusterState).routingTable();
clusterState = ClusterState.builder(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).primaryShard().version(), equalTo(1l));
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).primaryShard().version(), equalTo(1l));
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 = ClusterState.builder(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).primaryShard().version(), equalTo(2l));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
assertThat(routingTable.index("test1").shard(i).replicaShards().get(0).version(), equalTo(2l));
}
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).primaryShard().version(), equalTo(1l));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
assertThat(routingTable.index("test2").shard(i).replicaShards().get(0).version(), equalTo(1l));
}
}
}