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

Example 26 with RoutingNodes

use of org.opensearch.cluster.routing.RoutingNodes in project OpenSearch by opensearch-project.

the class RoutingNodesIntegrityTests method testBalanceIncrementallyStartNodes.

public void testBalanceIncrementallyStartNodes() {
    AllocationService strategy = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 10).put(CLUSTER_ROUTING_ALLOCATION_NODE_INITIAL_REPLICAS_RECOVERIES_SETTING.getKey(), 10).put("cluster.routing.allocation.node_initial_primaries_recoveries", 10).put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), "always").put("cluster.routing.allocation.cluster_concurrent_rebalance", -1).build());
    logger.info("Building initial routing table");
    Metadata metadata = Metadata.builder().put(IndexMetadata.builder("test").settings(settings(Version.CURRENT)).numberOfShards(3).numberOfReplicas(1)).put(IndexMetadata.builder("test1").settings(settings(Version.CURRENT)).numberOfShards(3).numberOfReplicas(1)).build();
    RoutingTable initialRoutingTable = RoutingTable.builder().addAsNew(metadata.index("test")).addAsNew(metadata.index("test1")).build();
    ClusterState clusterState = ClusterState.builder(org.opensearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metadata(metadata).routingTable(initialRoutingTable).build();
    logger.info("Adding one node and performing rerouting");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder().add(newNode("node1"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    logger.info("Add another node and perform rerouting, nothing will happen since primary not started");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node2"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    logger.info("Start the primary shard");
    clusterState = startInitializingShardsAndReroute(strategy, clusterState);
    logger.info("Reroute, nothing should change");
    clusterState = strategy.reroute(clusterState, "reroute");
    logger.info("Start the backup shard");
    clusterState = startInitializingShardsAndReroute(strategy, clusterState);
    clusterState = startInitializingShardsAndReroute(strategy, clusterState);
    logger.info("Add another node and perform rerouting, nothing will happen since primary not started");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node3"))).build();
    clusterState = strategy.reroute(clusterState, "reroute");
    logger.info("Reroute, nothing should change");
    ClusterState newState = strategy.reroute(clusterState, "reroute");
    assertThat(newState, equalTo(clusterState));
    logger.info("Start the backup shard");
    newState = startInitializingShardsAndReroute(strategy, clusterState);
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(3));
    newState = startInitializingShardsAndReroute(strategy, clusterState);
    assertThat(newState, not(equalTo(clusterState)));
    clusterState = newState;
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    assertThat(clusterState.routingTable().index("test1").shards().size(), equalTo(3));
    assertThat(routingNodes.node("node1").numberOfShardsWithState(STARTED), equalTo(4));
    assertThat(routingNodes.node("node2").numberOfShardsWithState(STARTED), equalTo(4));
    assertThat(routingNodes.node("node3").numberOfShardsWithState(STARTED), equalTo(4));
    assertThat(routingNodes.node("node1").shardsWithState("test", STARTED).size(), equalTo(2));
    assertThat(routingNodes.node("node2").shardsWithState("test", STARTED).size(), equalTo(2));
    assertThat(routingNodes.node("node3").shardsWithState("test", STARTED).size(), equalTo(2));
    assertThat(routingNodes.node("node1").shardsWithState("test1", STARTED).size(), equalTo(2));
    assertThat(routingNodes.node("node2").shardsWithState("test1", STARTED).size(), equalTo(2));
    assertThat(routingNodes.node("node3").shardsWithState("test1", STARTED).size(), equalTo(2));
}

Example 27 with RoutingNodes

use of org.opensearch.cluster.routing.RoutingNodes in project OpenSearch by opensearch-project.

the class NodeVersionAllocationDeciderTests method testMessages.

public void testMessages() {
    Metadata metadata = Metadata.builder().put(IndexMetadata.builder("test").settings(settings(Version.CURRENT)).numberOfShards(1).numberOfReplicas(1)).build();
    RoutingTable initialRoutingTable = RoutingTable.builder().addAsNew(metadata.index("test")).build();
    RoutingNode newNode = new RoutingNode("newNode", newNode("newNode", Version.CURRENT));
    RoutingNode oldNode = new RoutingNode("oldNode", newNode("oldNode", VersionUtils.getPreviousVersion()));
    final org.opensearch.cluster.ClusterName clusterName = org.opensearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY);
    ClusterState clusterState = ClusterState.builder(clusterName).metadata(metadata).routingTable(initialRoutingTable).nodes(DiscoveryNodes.builder().add(newNode.node()).add(oldNode.node())).build();
    final ShardId shardId = clusterState.routingTable().index("test").shard(0).getShardId();
    final ShardRouting primaryShard = clusterState.routingTable().shardRoutingTable(shardId).primaryShard();
    final ShardRouting replicaShard = clusterState.routingTable().shardRoutingTable(shardId).replicaShards().get(0);
    RoutingAllocation routingAllocation = new RoutingAllocation(null, clusterState.getRoutingNodes(), clusterState, null, null, 0);
    routingAllocation.debugDecision(true);
    final NodeVersionAllocationDecider allocationDecider = new NodeVersionAllocationDecider();
    Decision decision = allocationDecider.canAllocate(primaryShard, newNode, routingAllocation);
    assertThat(decision.type(), is(Decision.Type.YES));
    assertThat(decision.getExplanation(), is("the primary shard is new or already existed on the node"));
    decision = allocationDecider.canAllocate(ShardRoutingHelper.initialize(primaryShard, "oldNode"), newNode, routingAllocation);
    assertThat(decision.type(), is(Decision.Type.YES));
    assertThat(decision.getExplanation(), is("can relocate primary shard from a node with version [" + oldNode.node().getVersion() + "] to a node with equal-or-newer version [" + newNode.node().getVersion() + "]"));
    decision = allocationDecider.canAllocate(ShardRoutingHelper.initialize(primaryShard, "newNode"), oldNode, routingAllocation);
    assertThat(decision.type(), is(Decision.Type.NO));
    assertThat(decision.getExplanation(), is("cannot relocate primary shard from a node with version [" + newNode.node().getVersion() + "] to a node with older version [" + oldNode.node().getVersion() + "]"));
    final IndexId indexId = new IndexId("test", UUIDs.randomBase64UUID(random()));
    final SnapshotRecoverySource newVersionSnapshot = new SnapshotRecoverySource(UUIDs.randomBase64UUID(), new Snapshot("rep1", new SnapshotId("snp1", UUIDs.randomBase64UUID())), newNode.node().getVersion(), indexId);
    final SnapshotRecoverySource oldVersionSnapshot = new SnapshotRecoverySource(UUIDs.randomBase64UUID(), new Snapshot("rep1", new SnapshotId("snp1", UUIDs.randomBase64UUID())), oldNode.node().getVersion(), indexId);
    decision = allocationDecider.canAllocate(ShardRoutingHelper.newWithRestoreSource(primaryShard, newVersionSnapshot), oldNode, routingAllocation);
    assertThat(decision.type(), is(Decision.Type.NO));
    assertThat(decision.getExplanation(), is("node version [" + oldNode.node().getVersion() + "] is older than the snapshot version [" + newNode.node().getVersion() + "]"));
    decision = allocationDecider.canAllocate(ShardRoutingHelper.newWithRestoreSource(primaryShard, oldVersionSnapshot), newNode, routingAllocation);
    assertThat(decision.type(), is(Decision.Type.YES));
    assertThat(decision.getExplanation(), is("node version [" + newNode.node().getVersion() + "] is the same or newer than snapshot version [" + oldNode.node().getVersion() + "]"));
    final RoutingChangesObserver routingChangesObserver = new RoutingChangesObserver.AbstractRoutingChangesObserver();
    final RoutingNodes routingNodes = new RoutingNodes(clusterState, false);
    final ShardRouting startedPrimary = routingNodes.startShard(logger, routingNodes.initializeShard(primaryShard, "newNode", null, 0, routingChangesObserver), routingChangesObserver);
    routingAllocation = new RoutingAllocation(null, routingNodes, clusterState, null, null, 0);
    routingAllocation.debugDecision(true);
    decision = allocationDecider.canAllocate(replicaShard, oldNode, routingAllocation);
    assertThat(decision.type(), is(Decision.Type.NO));
    assertThat(decision.getExplanation(), is("cannot allocate replica shard to a node with version [" + oldNode.node().getVersion() + "] since this is older than the primary version [" + newNode.node().getVersion() + "]"));
    routingNodes.startShard(logger, routingNodes.relocateShard(startedPrimary, "oldNode", 0, routingChangesObserver).v2(), routingChangesObserver);
    routingAllocation = new RoutingAllocation(null, routingNodes, clusterState, null, null, 0);
    routingAllocation.debugDecision(true);
    decision = allocationDecider.canAllocate(replicaShard, newNode, routingAllocation);
    assertThat(decision.type(), is(Decision.Type.YES));
    assertThat(decision.getExplanation(), is("can allocate replica shard to a node with version [" + newNode.node().getVersion() + "] since this is equal-or-newer than the primary version [" + oldNode.node().getVersion() + "]"));
}

Example 28 with RoutingNodes

use of org.opensearch.cluster.routing.RoutingNodes in project OpenSearch by opensearch-project.

the class NodeVersionAllocationDeciderTests method stabilize.

private ClusterState stabilize(ClusterState clusterState, AllocationService service) {
    logger.trace("RoutingNodes: {}", clusterState.getRoutingNodes());
    clusterState = service.disassociateDeadNodes(clusterState, true, "reroute");
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    assertRecoveryNodeVersions(routingNodes);
    logger.info("complete rebalancing");
    boolean changed;
    do {
        logger.trace("RoutingNodes: {}", clusterState.getRoutingNodes());
        ClusterState newState = startInitializingShardsAndReroute(service, clusterState);
        changed = newState.equals(clusterState) == false;
        clusterState = newState;
        routingNodes = clusterState.getRoutingNodes();
        assertRecoveryNodeVersions(routingNodes);
    } while (changed);
    return clusterState;
}

Example 29 with RoutingNodes

use of org.opensearch.cluster.routing.RoutingNodes in project OpenSearch by opensearch-project.

the class RebalanceAfterActiveTests method testRebalanceOnlyAfterAllShardsAreActive.

public void testRebalanceOnlyAfterAllShardsAreActive() {
    final long[] sizes = new long[5];
    for (int i = 0; i < sizes.length; i++) {
        sizes[i] = randomIntBetween(0, Integer.MAX_VALUE);
    }
    AllocationService strategy = createAllocationService(Settings.builder().put("cluster.routing.allocation.node_concurrent_recoveries", 10).put(ThrottlingAllocationDecider.CLUSTER_ROUTING_ALLOCATION_NODE_INITIAL_REPLICAS_RECOVERIES_SETTING.getKey(), 10).put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), "always").put("cluster.routing.allocation.cluster_concurrent_rebalance", -1).build(), () -> new ClusterInfo() {

        @Override
        public Long getShardSize(ShardRouting shardRouting) {
            if (shardRouting.getIndexName().equals("test")) {
                return sizes[shardRouting.getId()];
            }
            return null;
        }
    });
    logger.info("Building initial routing table");
    Metadata metadata = Metadata.builder().put(IndexMetadata.builder("test").settings(settings(Version.CURRENT)).numberOfShards(5).numberOfReplicas(1)).build();
    RoutingTable initialRoutingTable = RoutingTable.builder().addAsNew(metadata.index("test")).build();
    ClusterState clusterState = ClusterState.builder(org.opensearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).metadata(metadata).routingTable(initialRoutingTable).build();
    assertThat(clusterState.routingTable().index("test").shards().size(), equalTo(5));
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test").shard(i).shards().get(0).state(), equalTo(UNASSIGNED));
        assertThat(clusterState.routingTable().index("test").shard(i).shards().get(1).state(), equalTo(UNASSIGNED));
        assertThat(clusterState.routingTable().index("test").shard(i).shards().get(0).currentNodeId(), nullValue());
        assertThat(clusterState.routingTable().index("test").shard(i).shards().get(1).currentNodeId(), nullValue());
    }
    logger.info("start two nodes and fully start the shards");
    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("test").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test").shard(i).primaryShard().state(), equalTo(INITIALIZING));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).state(), equalTo(UNASSIGNED));
    }
    logger.info("start all the primary shards, replicas will start initializing");
    clusterState = startInitializingShardsAndReroute(strategy, clusterState);
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        assertThat(clusterState.routingTable().index("test").shard(i).shards().size(), equalTo(2));
        assertThat(clusterState.routingTable().index("test").shard(i).primaryShard().state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
        assertEquals(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).getExpectedShardSize(), sizes[i]);
    }
    logger.info("now, start 8 more nodes, and check that no rebalancing/relocation have happened");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node3")).add(newNode("node4")).add(newNode("node5")).add(newNode("node6")).add(newNode("node7")).add(newNode("node8")).add(newNode("node9")).add(newNode("node10"))).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(2));
        assertThat(clusterState.routingTable().index("test").shard(i).primaryShard().state(), equalTo(STARTED));
        assertThat(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).state(), equalTo(INITIALIZING));
        assertEquals(clusterState.routingTable().index("test").shard(i).replicaShards().get(0).getExpectedShardSize(), sizes[i]);
    }
    logger.info("start the replica shards, rebalancing should start");
    clusterState = startInitializingShardsAndReroute(strategy, clusterState);
    // we only allow one relocation at a time
    assertThat(clusterState.routingTable().shardsWithState(STARTED).size(), equalTo(5));
    assertThat(clusterState.routingTable().shardsWithState(RELOCATING).size(), equalTo(5));
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        int num = 0;
        for (ShardRouting routing : clusterState.routingTable().index("test").shard(i).shards()) {
            if (routing.state() == RELOCATING || routing.state() == INITIALIZING) {
                assertEquals(routing.getExpectedShardSize(), sizes[i]);
                num++;
            }
        }
        assertTrue(num > 0);
    }
    logger.info("complete relocation, other half of relocation should happen");
    clusterState = startInitializingShardsAndReroute(strategy, clusterState);
    // we now only relocate 3, since 2 remain where they are!
    assertThat(clusterState.routingTable().shardsWithState(STARTED).size(), equalTo(7));
    assertThat(clusterState.routingTable().shardsWithState(RELOCATING).size(), equalTo(3));
    for (int i = 0; i < clusterState.routingTable().index("test").shards().size(); i++) {
        for (ShardRouting routing : clusterState.routingTable().index("test").shard(i).shards()) {
            if (routing.state() == RELOCATING || routing.state() == INITIALIZING) {
                assertEquals(routing.getExpectedShardSize(), sizes[i]);
            }
        }
    }
    logger.info("complete relocation, that's it!");
    clusterState = startInitializingShardsAndReroute(strategy, clusterState);
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    assertThat(clusterState.routingTable().shardsWithState(STARTED).size(), equalTo(10));
    // make sure we have an even relocation
    for (RoutingNode routingNode : routingNodes) {
        assertThat(routingNode.size(), equalTo(1));
    }
}

Example 30 with RoutingNodes

use of org.opensearch.cluster.routing.RoutingNodes in project OpenSearch by opensearch-project.

the class SameShardRoutingTests method testForceAllocatePrimaryOnSameNodeNotAllowed.

public void testForceAllocatePrimaryOnSameNodeNotAllowed() {
    SameShardAllocationDecider decider = new SameShardAllocationDecider(Settings.EMPTY, new ClusterSettings(Settings.EMPTY, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS));
    ClusterState clusterState = ClusterStateCreationUtils.state("idx", randomIntBetween(2, 4), 1);
    Index index = clusterState.getMetadata().index("idx").getIndex();
    ShardRouting primaryShard = clusterState.routingTable().index(index).shard(0).primaryShard();
    RoutingNode routingNode = clusterState.getRoutingNodes().node(primaryShard.currentNodeId());
    RoutingAllocation routingAllocation = new RoutingAllocation(new AllocationDeciders(Collections.emptyList()), new RoutingNodes(clusterState, false), clusterState, ClusterInfo.EMPTY, SnapshotShardSizeInfo.EMPTY, System.nanoTime());
    // can't force allocate same shard copy to the same node
    ShardRouting newPrimary = TestShardRouting.newShardRouting(primaryShard.shardId(), null, true, ShardRoutingState.UNASSIGNED);
    Decision decision = decider.canForceAllocatePrimary(newPrimary, routingNode, routingAllocation);
    assertEquals(Decision.Type.NO, decision.type());
    // can force allocate to a different node
    RoutingNode unassignedNode = null;
    for (RoutingNode node : clusterState.getRoutingNodes()) {
        if (node.isEmpty()) {
            unassignedNode = node;
            break;
        }
    }
    decision = decider.canForceAllocatePrimary(newPrimary, unassignedNode, routingAllocation);
    assertEquals(Decision.Type.YES, decision.type());
}