@Test
public void cancelCommand() {
AllocationService allocation =
new AllocationService(
settingsBuilder()
.put("cluster.routing.allocation.disable_new_allocation", true)
.put("cluster.routing.allocation.disable_allocation", true)
.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 3 nodes");
clusterState =
newClusterStateBuilder()
.state(clusterState)
.nodes(
newNodesBuilder().put(newNode("node1")).put(newNode("node2")).put(newNode("node3")))
.build();
RoutingAllocationResult rerouteResult = allocation.reroute(clusterState);
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(0));
logger.info("--> allocating with primary flag set to true");
rerouteResult =
allocation.reroute(
clusterState,
new AllocationCommands(
new AllocateAllocationCommand(new ShardId("test", 0), "node1", true)));
assertThat(rerouteResult.changed(), equalTo(true));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(0));
logger.info("--> cancel primary allocation, make sure it fails...");
try {
allocation.reroute(
clusterState,
new AllocationCommands(
new CancelAllocationCommand(new ShardId("test", 0), "node1", false)));
assert false;
} catch (ElasticSearchIllegalArgumentException e) {
}
logger.info("--> start the primary shard");
rerouteResult =
allocation.applyStartedShards(
clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(0));
logger.info("--> cancel primary allocation, make sure it fails...");
try {
allocation.reroute(
clusterState,
new AllocationCommands(
new CancelAllocationCommand(new ShardId("test", 0), "node1", false)));
assert false;
} catch (ElasticSearchIllegalArgumentException e) {
}
logger.info("--> allocate the replica shard on on the second node");
rerouteResult =
allocation.reroute(
clusterState,
new AllocationCommands(
new AllocateAllocationCommand(new ShardId("test", 0), "node2", false)));
assertThat(rerouteResult.changed(), equalTo(true));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), equalTo(1));
logger.info("--> cancel the relocation allocation");
rerouteResult =
allocation.reroute(
clusterState,
new AllocationCommands(
new CancelAllocationCommand(new ShardId("test", 0), "node2", false)));
assertThat(rerouteResult.changed(), equalTo(true));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(0));
assertThat(clusterState.routingNodes().node("node3").shards().size(), equalTo(0));
logger.info("--> allocate the replica shard on on the second node");
rerouteResult =
allocation.reroute(
clusterState,
new AllocationCommands(
new AllocateAllocationCommand(new ShardId("test", 0), "node2", false)));
assertThat(rerouteResult.changed(), equalTo(true));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), equalTo(1));
logger.info("--> cancel the primary being replicated, make sure it fails");
try {
allocation.reroute(
clusterState,
new AllocationCommands(
new CancelAllocationCommand(new ShardId("test", 0), "node1", false)));
assert false;
} catch (ElasticSearchIllegalArgumentException e) {
}
logger.info("--> start the replica shard");
rerouteResult =
allocation.applyStartedShards(
clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node2").shardsWithState(STARTED).size(), equalTo(1));
logger.info("--> cancel allocation of the replica shard");
rerouteResult =
allocation.reroute(
clusterState,
new AllocationCommands(
new CancelAllocationCommand(new ShardId("test", 0), "node2", false)));
assertThat(rerouteResult.changed(), equalTo(true));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(0));
assertThat(clusterState.routingNodes().node("node3").shards().size(), equalTo(0));
logger.info("--> allocate the replica shard on on the second node");
rerouteResult =
allocation.reroute(
clusterState,
new AllocationCommands(
new AllocateAllocationCommand(new ShardId("test", 0), "node2", false)));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(rerouteResult.changed(), equalTo(true));
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), equalTo(1));
logger.info("--> start the replica shard");
rerouteResult =
allocation.applyStartedShards(
clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node2").shardsWithState(STARTED).size(), equalTo(1));
logger.info("--> cancel the primary allocation (with allow_primary set to true)");
rerouteResult =
allocation.reroute(
clusterState,
new AllocationCommands(
new CancelAllocationCommand(new ShardId("test", 0), "node1", true)));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(rerouteResult.changed(), equalTo(true));
assertThat(
clusterState.routingNodes().node("node2").shardsWithState(STARTED).get(0).primary(),
equalTo(true));
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(0));
assertThat(clusterState.routingNodes().node("node3").shards().size(), equalTo(0));
}
@Test
public void moveShardCommand() {
AllocationService allocation =
new AllocationService(
settingsBuilder().put("cluster.routing.allocation.concurrent_recoveries", 10).build());
logger.info("creating an index with 1 shard, no replica");
MetaData metaData =
newMetaDataBuilder()
.put(newIndexMetaDataBuilder("test").numberOfShards(1).numberOfReplicas(0))
.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();
RoutingAllocationResult rerouteResult = allocation.reroute(clusterState);
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
logger.info("start primary shard");
rerouteResult =
allocation.applyStartedShards(
clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
logger.info("move the shard");
String existingNodeId =
clusterState.routingTable().index("test").shard(0).primaryShard().currentNodeId();
String toNodeId;
if ("node1".equals(existingNodeId)) {
toNodeId = "node2";
} else {
toNodeId = "node1";
}
rerouteResult =
allocation.reroute(
clusterState,
new AllocationCommands(
new MoveAllocationCommand(new ShardId("test", 0), existingNodeId, toNodeId)));
assertThat(rerouteResult.changed(), equalTo(true));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(
clusterState.routingNodes().node(existingNodeId).shards().get(0).state(),
equalTo(ShardRoutingState.RELOCATING));
assertThat(
clusterState.routingNodes().node(toNodeId).shards().get(0).state(),
equalTo(ShardRoutingState.INITIALIZING));
logger.info("finish moving the shard");
rerouteResult =
allocation.applyStartedShards(
clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node(existingNodeId).shards().isEmpty(), equalTo(true));
assertThat(
clusterState.routingNodes().node(toNodeId).shards().get(0).state(),
equalTo(ShardRoutingState.STARTED));
}
@Test
public void allocateCommand() {
AllocationService allocation =
new AllocationService(
settingsBuilder()
.put("cluster.routing.allocation.disable_new_allocation", true)
.put("cluster.routing.allocation.disable_allocation", true)
.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 3 nodes on same rack and do rerouting");
clusterState =
newClusterStateBuilder()
.state(clusterState)
.nodes(
newNodesBuilder().put(newNode("node1")).put(newNode("node2")).put(newNode("node3")))
.build();
RoutingAllocationResult rerouteResult = allocation.reroute(clusterState);
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().shardsWithState(INITIALIZING).size(), equalTo(0));
logger.info("--> allocating with primary flag set to false, should fail");
try {
allocation.reroute(
clusterState,
new AllocationCommands(
new AllocateAllocationCommand(new ShardId("test", 0), "node1", false)));
assert false;
} catch (ElasticSearchIllegalArgumentException e) {
}
logger.info("--> allocating with primary flag set to true");
rerouteResult =
allocation.reroute(
clusterState,
new AllocationCommands(
new AllocateAllocationCommand(new ShardId("test", 0), "node1", true)));
assertThat(rerouteResult.changed(), equalTo(true));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(0));
logger.info("--> start the primary shard");
rerouteResult =
allocation.applyStartedShards(
clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(0));
logger.info("--> allocate the replica shard on the primary shard node, should fail");
try {
allocation.reroute(
clusterState,
new AllocationCommands(
new AllocateAllocationCommand(new ShardId("test", 0), "node1", false)));
assert false;
} catch (ElasticSearchIllegalArgumentException e) {
}
logger.info("--> allocate the replica shard on on the second node");
rerouteResult =
allocation.reroute(
clusterState,
new AllocationCommands(
new AllocateAllocationCommand(new ShardId("test", 0), "node2", false)));
assertThat(rerouteResult.changed(), equalTo(true));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node2").shardsWithState(INITIALIZING).size(), equalTo(1));
logger.info("--> start the replica shard");
rerouteResult =
allocation.applyStartedShards(
clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
clusterState =
newClusterStateBuilder()
.state(clusterState)
.routingTable(rerouteResult.routingTable())
.build();
assertThat(clusterState.routingNodes().node("node1").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
assertThat(clusterState.routingNodes().node("node2").shards().size(), equalTo(1));
assertThat(
clusterState.routingNodes().node("node2").shardsWithState(STARTED).size(), equalTo(1));
logger.info("--> verify that we fail when there are no unassigned shards");
try {
allocation.reroute(
clusterState,
new AllocationCommands(
new AllocateAllocationCommand(new ShardId("test", 0), "node3", false)));
assert false;
} catch (ElasticSearchIllegalArgumentException e) {
}
}