Examples with RoutingNodes org.elasticsearch.cluster.routing.RoutingNodes used on opensource projects

Example 11 with RoutingNodes

use of org.elasticsearch.cluster.routing.RoutingNodes in project elasticsearch by elastic.

the class ClusterRebalanceRoutingTests method testClusterPrimariesActive1.

public void testClusterPrimariesActive1() {
    AllocationService strategy = createAllocationService(Settings.builder().put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), ClusterRebalanceAllocationDecider.ClusterRebalanceType.INDICES_PRIMARIES_ACTIVE.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 initialRoutingTable = RoutingTable.builder().addAsNew(metaData.index("test1")).addAsNew(metaData.index("test2")).build();
    ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(initialRoutingTable).build();
    logger.info("start two nodes");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
        assertThat(clusterState.routingTable().index("test1").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
    }
    for (int i = 0; i < clusterState.routingTable().index("test2").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test2").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
        assertThat(clusterState.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.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test1").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
    }
    for (int i = 0; i < clusterState.routingTable().index("test2").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test2").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
        assertThat(clusterState.routingTable().index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
    }
    logger.info("start the test1 replica shards");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
    }
    for (int i = 0; i < clusterState.routingTable().index("test2").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test2").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
        assertThat(clusterState.routingTable().index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
    }
    logger.info("start all the primary shards for test2, replicas will start initializing");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test2", INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
    }
    for (int i = 0; i < clusterState.routingTable().index("test2").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test2").shard(i).size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test2").shard(i).primaryShard().state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test2").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
    }
    logger.info("now, start 1 more node, check that rebalancing happen (for test1) because we set it to primaries_active");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node3"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    routingNodes = clusterState.getRoutingNodes();
    assertThat(routingNodes.node("node3").size(), equalTo(1));
    assertThat(routingNodes.node("node3").iterator().next().shardId().getIndex().getName(), equalTo("test1"));
}

Example 12 with RoutingNodes

use of org.elasticsearch.cluster.routing.RoutingNodes in project elasticsearch by elastic.

the class ClusterRebalanceRoutingTests method testClusterAllActive2.

public void testClusterAllActive2() {
    AllocationService strategy = createAllocationService(Settings.builder().put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), ClusterRebalanceAllocationDecider.ClusterRebalanceType.INDICES_ALL_ACTIVE.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 initialRoutingTable = RoutingTable.builder().addAsNew(metaData.index("test1")).addAsNew(metaData.index("test2")).build();
    ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(initialRoutingTable).build();
    logger.info("start two nodes");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1")).add(newNode("node2"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
        assertThat(clusterState.routingTable().index("test1").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
    }
    for (int i = 0; i < clusterState.routingTable().index("test2").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test2").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
        assertThat(clusterState.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.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test1").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
    }
    for (int i = 0; i < clusterState.routingTable().index("test2").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test2").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
        assertThat(clusterState.routingTable().index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
    }
    logger.info("start the test1 replica shards");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING));
    routingNodes = clusterState.getRoutingNodes();
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test1").shard(i).replicaShards().get(0).state(), equalTo(STARTED));
    }
    for (int i = 0; i < clusterState.routingTable().index("test2").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test2").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test2").shard(i).primaryShard().state(), equalTo(INITIALIZING));
        assertThat(clusterState.routingTable().index("test2").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
    }
    logger.info("now, start 1 more node, check that rebalancing will not happen (for test1) because we set it to all_active");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node3"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    routingNodes = clusterState.getRoutingNodes();
    assertThat(routingNodes.node("node3").isEmpty(), equalTo(true));
}

Example 13 with RoutingNodes

use of org.elasticsearch.cluster.routing.RoutingNodes in project elasticsearch by elastic.

the class ClusterRebalanceRoutingTests method testRebalanceWithIgnoredUnassignedShards.

public void testRebalanceWithIgnoredUnassignedShards() {
    final AtomicBoolean allocateTest1 = new AtomicBoolean(false);
    AllocationService strategy = createAllocationService(Settings.EMPTY, new TestGatewayAllocator() {

        @Override
        public void allocateUnassigned(RoutingAllocation allocation) {
            if (allocateTest1.get() == false) {
                RoutingNodes.UnassignedShards unassigned = allocation.routingNodes().unassigned();
                RoutingNodes.UnassignedShards.UnassignedIterator iterator = unassigned.iterator();
                while (iterator.hasNext()) {
                    ShardRouting next = iterator.next();
                    if ("test1".equals(next.index().getName())) {
                        iterator.removeAndIgnore(UnassignedInfo.AllocationStatus.NO_ATTEMPT, allocation.changes());
                    }
                }
            }
            super.allocateUnassigned(allocation);
        }
    });
    MetaData metaData = MetaData.builder().put(IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(2).numberOfReplicas(0)).put(IndexMetaData.builder("test1").settings(settings(Version.CURRENT)).numberOfShards(2).numberOfReplicas(0)).build();
    RoutingTable initialRoutingTable = RoutingTable.builder().addAsNew(metaData.index("test")).addAsNew(metaData.index("test1")).build();
    ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metaData(metaData).routingTable(initialRoutingTable).build();
    logger.info("start two nodes");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test").shard(i).shards().size(), equalTo(1));
        assertThat(clusterState.routingTable().index("test").shard(i).primaryShard().state(), equalTo(INITIALIZING));
    }
    logger.debug("start all the primary shards for test");
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test", INITIALIZING));
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test").shard(i).shards().size(), equalTo(1));
        assertThat(clusterState.routingTable().index("test").shard(i).primaryShard().state(), equalTo(STARTED));
    }
    logger.debug("now, start 1 more node, check that rebalancing will not happen since we unassigned shards");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node2"))).build();
    logger.debug("reroute and check that nothing has changed");
    ClusterState resultingState = strategy.reroute(clusterState, "reroute");
    assertThat(resultingState, equalTo(clusterState));
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test").shard(i).shards().size(), equalTo(1));
        assertThat(clusterState.routingTable().index("test").shard(i).primaryShard().state(), equalTo(STARTED));
    }
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().size(), equalTo(1));
        assertThat(clusterState.routingTable().index("test1").shard(i).primaryShard().state(), equalTo(UNASSIGNED));
    }
    logger.debug("now set allocateTest1 to true and reroute we should see the [test1] index initializing");
    allocateTest1.set(true);
    resultingState = strategy.reroute(clusterState, "reroute");
    assertThat(resultingState, not(equalTo(clusterState)));
    clusterState = resultingState;
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().size(), equalTo(1));
        assertThat(clusterState.routingTable().index("test1").shard(i).primaryShard().state(), equalTo(INITIALIZING));
    }
    logger.debug("now start initializing shards and expect exactly one rebalance from node1 to node 2 since index [test] is all on node1");
    routingNodes = clusterState.getRoutingNodes();
    clusterState = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState("test1", INITIALIZING));
    for (int i = 0; i < clusterState.routingTable().index("test1").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test1").shard(i).shards().size(), equalTo(1));
        assertThat(clusterState.routingTable().index("test1").shard(i).primaryShard().state(), equalTo(STARTED));
    }
    int numStarted = 0;
    int numRelocating = 0;
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test").shard(i).shards().size(), equalTo(1));
        if (clusterState.routingTable().index("test").shard(i).primaryShard().state() == STARTED) {
            numStarted++;
        } else if (clusterState.routingTable().index("test").shard(i).primaryShard().state() == RELOCATING) {
            numRelocating++;
        }
    }
    assertEquals(numStarted, 1);
    assertEquals(numRelocating, 1);
}

Example 14 with RoutingNodes

use of org.elasticsearch.cluster.routing.RoutingNodes in project elasticsearch by elastic.

the class RareClusterStateIT method testUnassignedShardAndEmptyNodesInRoutingTable.

public void testUnassignedShardAndEmptyNodesInRoutingTable() throws Exception {
    internalCluster().startNode();
    createIndex("a");
    ensureSearchable("a");
    ClusterState current = clusterService().state();
    GatewayAllocator allocator = internalCluster().getInstance(GatewayAllocator.class);
    AllocationDeciders allocationDeciders = new AllocationDeciders(Settings.EMPTY, Collections.emptyList());
    RoutingNodes routingNodes = new RoutingNodes(ClusterState.builder(current).routingTable(RoutingTable.builder(current.routingTable()).remove("a").addAsRecovery(current.metaData().index("a")).build()).nodes(DiscoveryNodes.EMPTY_NODES).build(), false);
    RoutingAllocation routingAllocation = new RoutingAllocation(allocationDeciders, routingNodes, current, ClusterInfo.EMPTY, System.nanoTime(), false);
    allocator.allocateUnassigned(routingAllocation);
}

Example 15 with RoutingNodes

use of org.elasticsearch.cluster.routing.RoutingNodes in project elasticsearch by elastic.

the class CancelAllocationCommand method execute.

@Override
public RerouteExplanation execute(RoutingAllocation allocation, boolean explain) {
    DiscoveryNode discoNode = allocation.nodes().resolveNode(node);
    ShardRouting shardRouting = null;
    RoutingNodes routingNodes = allocation.routingNodes();
    RoutingNode routingNode = routingNodes.node(discoNode.getId());
    IndexMetaData indexMetaData = null;
    if (routingNode != null) {
        indexMetaData = allocation.metaData().index(index());
        if (indexMetaData == null) {
            throw new IndexNotFoundException(index());
        }
        ShardId shardId = new ShardId(indexMetaData.getIndex(), shardId());
        shardRouting = routingNode.getByShardId(shardId);
    }
    if (shardRouting == null) {
        if (explain) {
            return new RerouteExplanation(this, allocation.decision(Decision.NO, "cancel_allocation_command", "can't cancel " + shardId + ", failed to find it on node " + discoNode));
        }
        throw new IllegalArgumentException("[cancel_allocation] can't cancel " + shardId + ", failed to find it on node " + discoNode);
    }
    if (shardRouting.primary() && allowPrimary == false) {
        if ((shardRouting.initializing() && shardRouting.relocatingNodeId() != null) == false) {
            // only allow cancelling initializing shard of primary relocation without allowPrimary flag
            if (explain) {
                return new RerouteExplanation(this, allocation.decision(Decision.NO, "cancel_allocation_command", "can't cancel " + shardId + " on node " + discoNode + ", shard is primary and " + shardRouting.state().name().toLowerCase(Locale.ROOT)));
            }
            throw new IllegalArgumentException("[cancel_allocation] can't cancel " + shardId + " on node " + discoNode + ", shard is primary and " + shardRouting.state().name().toLowerCase(Locale.ROOT));
        }
    }
    routingNodes.failShard(Loggers.getLogger(CancelAllocationCommand.class), shardRouting, new UnassignedInfo(UnassignedInfo.Reason.REROUTE_CANCELLED, null), indexMetaData, allocation.changes());
    return new RerouteExplanation(this, allocation.decision(Decision.YES, "cancel_allocation_command", "shard " + shardId + " on node " + discoNode + " can be cancelled"));
}