Examples of org.elasticsearch.cluster.routing.allocation.command.AllocateAllocationCommand$Factory

Package org.elasticsearch.cluster.routing.allocation.command

Examples of org.elasticsearch.cluster.routing.allocation.command.AllocateAllocationCommand$Factory

org.elasticsearch.cluster.routing.allocation.command.AllocateAllocationCommand
Allocates an unassigned shard to a specific node. Note, primary allocation will "force" allocation which might mean one will loose data if using local gateway..., use with care with the allowPrimary flag.

        clusterState = ClusterState.builder(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)));
            fail();
        } catch (ElasticsearchIllegalArgumentException e) {
        }


        logger.info("--> allocating to non-data node, should fail");
        try {
            rerouteResult = allocation.reroute(clusterState, new AllocationCommands(new AllocateAllocationCommand(new ShardId("test", 0), "node4", true)));
            fail();
        } 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 = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").size(), equalTo(0));


        logger.info("--> start the primary shard");
        rerouteResult = allocation.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
        clusterState = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").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)));
            fail();
        } 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 = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").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 = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").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)));
            fail();
        } catch (ElasticsearchIllegalArgumentException e) {
        }
    }

View Full Code Here

        RoutingAllocation.Result rerouteResult = allocation.reroute(clusterState);
        clusterState = ClusterState.builder(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 = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(INITIALIZING).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").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)));
            fail();
        } catch (ElasticsearchIllegalArgumentException e) {
        }


        logger.info("--> start the primary shard");
        rerouteResult = allocation.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
        clusterState = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").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)));
            fail();
        } 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 = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").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 = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").size(), equalTo(0));
        assertThat(clusterState.routingNodes().node("node3").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 = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").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)));
            fail();
        } catch (ElasticsearchIllegalArgumentException e) {
        }


        logger.info("--> start the replica shard");
        rerouteResult = allocation.applyStartedShards(clusterState, clusterState.routingNodes().shardsWithState(INITIALIZING));
        clusterState = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").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 = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").size(), equalTo(0));
        assertThat(clusterState.routingNodes().node("node3").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 = ClusterState.builder(clusterState).routingTable(rerouteResult.routingTable()).build();
        assertThat(rerouteResult.changed(), equalTo(true));
        assertThat(clusterState.routingNodes().node("node1").size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node1").shardsWithState(STARTED).size(), equalTo(1));
        assertThat(clusterState.routingNodes().node("node2").size(), equalTo(1));

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    }


    @Test
    public void serialization() throws Exception {
        AllocationCommands commands = new AllocationCommands(
                new AllocateAllocationCommand(new ShardId("test", 1), "node1", true),
                new MoveAllocationCommand(new ShardId("test", 3), "node2", "node3"),
                new CancelAllocationCommand(new ShardId("test", 4), "node5", true)
        );
        BytesStreamOutput bytes = new BytesStreamOutput();
        AllocationCommands.writeTo(commands, bytes);

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        assertThat(state.routingNodes().unassigned().size(), equalTo(2));


        logger.info("--> explicitly allocate shard 1, *under dry_run*");
        state = client().admin().cluster().prepareReroute()
                .setExplain(randomBoolean())
                .add(new AllocateAllocationCommand(new ShardId("test", 0), node_1, true))
                .setDryRun(true)
                .execute().actionGet().getState();
        assertThat(state.routingNodes().unassigned().size(), equalTo(1));
        assertThat(state.routingNodes().node(state.nodes().resolveNode(node_1).id()).get(0).state(), equalTo(ShardRoutingState.INITIALIZING));


        logger.info("--> get the state, verify nothing changed because of the dry run");
        state = client().admin().cluster().prepareState().execute().actionGet().getState();
        assertThat(state.routingNodes().unassigned().size(), equalTo(2));


        logger.info("--> explicitly allocate shard 1, actually allocating, no dry run");
        state = client().admin().cluster().prepareReroute()
                .setExplain(randomBoolean())
                .add(new AllocateAllocationCommand(new ShardId("test", 0), node_1, true))
                .execute().actionGet().getState();
        assertThat(state.routingNodes().unassigned().size(), equalTo(1));
        assertThat(state.routingNodes().node(state.nodes().resolveNode(node_1).id()).get(0).state(), equalTo(ShardRoutingState.INITIALIZING));


        ClusterHealthResponse healthResponse = client().admin().cluster().prepareHealth().setWaitForEvents(Priority.LANGUID).setWaitForYellowStatus().execute().actionGet();

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        assertThat(state.routingNodes().unassigned().size(), equalTo(2));


        logger.info("--> explicitly allocate shard 1, actually allocating, no dry run");
        state = client().admin().cluster().prepareReroute()
                .setExplain(randomBoolean())
                .add(new AllocateAllocationCommand(new ShardId("test", 0), node_1, true))
                .execute().actionGet().getState();
        assertThat(state.routingNodes().unassigned().size(), equalTo(1));
        assertThat(state.routingNodes().node(state.nodes().resolveNode(node_1).id()).get(0).state(), equalTo(ShardRoutingState.INITIALIZING));


        healthResponse = client().admin().cluster().prepareHealth().setWaitForEvents(Priority.LANGUID).setWaitForYellowStatus().execute().actionGet();
        assertThat(healthResponse.isTimedOut(), equalTo(false));


        logger.info("--> get the state, verify shard 1 primary allocated");
        state = client().admin().cluster().prepareState().execute().actionGet().getState();
        assertThat(state.routingNodes().unassigned().size(), equalTo(1));
        assertThat(state.routingNodes().node(state.nodes().resolveNode(node_1).id()).get(0).state(), equalTo(ShardRoutingState.STARTED));


        client().prepareIndex("test", "type", "1").setSource("field", "value").setRefresh(true).execute().actionGet();


        logger.info("--> closing all nodes");
        File[] shardLocation = internalCluster().getInstance(NodeEnvironment.class, node_1).shardLocations(new ShardId("test", 0));
        assertThat(FileSystemUtils.exists(shardLocation), equalTo(true)); // make sure the data is there!
        internalCluster().closeNonSharedNodes(false); // don't wipe data directories the index needs to be there!


        logger.info("--> deleting the shard data [{}] ", Arrays.toString(shardLocation));
        assertThat(FileSystemUtils.exists(shardLocation), equalTo(true)); // verify again after cluster was shut down
        IOUtils.rm(FileSystemUtils.toPaths(shardLocation));


        logger.info("--> starting nodes back, will not allocate the shard since it has no data, but the index will be there");
        node_1 = internalCluster().startNode(commonSettings);
        internalCluster().startNode(commonSettings);
        // wait a bit for the cluster to realize that the shard is not there...
        // TODO can we get around this? the cluster is RED, so what do we wait for?
        client().admin().cluster().prepareReroute().get();
        assertThat(client().admin().cluster().prepareHealth().setWaitForNodes("2").execute().actionGet().getStatus(), equalTo(ClusterHealthStatus.RED));
        logger.info("--> explicitly allocate primary");
        state = client().admin().cluster().prepareReroute()
                .setExplain(randomBoolean())
                .add(new AllocateAllocationCommand(new ShardId("test", 0), node_1, true))
                .execute().actionGet().getState();
        assertThat(state.routingNodes().unassigned().size(), equalTo(1));
        assertThat(state.routingNodes().node(state.nodes().resolveNode(node_1).id()).get(0).state(), equalTo(ShardRoutingState.INITIALIZING));


        healthResponse = client().admin().cluster().prepareHealth().setWaitForEvents(Priority.LANGUID).setWaitForYellowStatus().execute().actionGet();

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