Examples with TestGatewayAllocator org.elasticsearch.test.gateway.TestGatewayAllocator used on opensource projects

Example 1 with TestGatewayAllocator

use of org.elasticsearch.test.gateway.TestGatewayAllocator in project elasticsearch by elastic.

the class ClusterRerouteTests method testClusterStateUpdateTask.

public void testClusterStateUpdateTask() {
    AllocationService allocationService = new AllocationService(Settings.builder().build(), new AllocationDeciders(Settings.EMPTY, Collections.singleton(new MaxRetryAllocationDecider(Settings.EMPTY))), new TestGatewayAllocator(), new BalancedShardsAllocator(Settings.EMPTY), EmptyClusterInfoService.INSTANCE);
    ClusterState clusterState = createInitialClusterState(allocationService);
    ClusterRerouteRequest req = new ClusterRerouteRequest();
    req.dryRun(true);
    AtomicReference<ClusterRerouteResponse> responseRef = new AtomicReference<>();
    ActionListener<ClusterRerouteResponse> responseActionListener = new ActionListener<ClusterRerouteResponse>() {

        @Override
        public void onResponse(ClusterRerouteResponse clusterRerouteResponse) {
            responseRef.set(clusterRerouteResponse);
        }

        @Override
        public void onFailure(Exception e) {
        }
    };
    TransportClusterRerouteAction.ClusterRerouteResponseAckedClusterStateUpdateTask task = new TransportClusterRerouteAction.ClusterRerouteResponseAckedClusterStateUpdateTask(logger, allocationService, req, responseActionListener);
    ClusterState execute = task.execute(clusterState);
    // dry-run
    assertSame(execute, clusterState);
    task.onAllNodesAcked(null);
    assertNotSame(responseRef.get().getState(), execute);
    // now we allocate
    req.dryRun(false);
    final int retries = MaxRetryAllocationDecider.SETTING_ALLOCATION_MAX_RETRY.get(Settings.EMPTY);
    // now fail it N-1 times
    for (int i = 0; i < retries; i++) {
        ClusterState newState = task.execute(clusterState);
        // dry-run=false
        assertNotSame(newState, clusterState);
        clusterState = newState;
        RoutingTable routingTable = clusterState.routingTable();
        assertEquals(routingTable.index("idx").shards().size(), 1);
        assertEquals(routingTable.index("idx").shard(0).shards().get(0).state(), INITIALIZING);
        assertEquals(routingTable.index("idx").shard(0).shards().get(0).unassignedInfo().getNumFailedAllocations(), i);
        List<FailedShard> failedShards = Collections.singletonList(new FailedShard(routingTable.index("idx").shard(0).shards().get(0), "boom" + i, new UnsupportedOperationException()));
        newState = allocationService.applyFailedShards(clusterState, failedShards);
        assertThat(newState, not(equalTo(clusterState)));
        clusterState = newState;
        routingTable = clusterState.routingTable();
        assertEquals(routingTable.index("idx").shards().size(), 1);
        if (i == retries - 1) {
            assertEquals(routingTable.index("idx").shard(0).shards().get(0).state(), UNASSIGNED);
        } else {
            assertEquals(routingTable.index("idx").shard(0).shards().get(0).state(), INITIALIZING);
        }
        assertEquals(routingTable.index("idx").shard(0).shards().get(0).unassignedInfo().getNumFailedAllocations(), i + 1);
    }
    // without retry_failed we won't allocate that shard
    ClusterState newState = task.execute(clusterState);
    // dry-run=false
    assertNotSame(newState, clusterState);
    task.onAllNodesAcked(null);
    assertSame(responseRef.get().getState(), newState);
    RoutingTable routingTable = clusterState.routingTable();
    assertEquals(routingTable.index("idx").shards().size(), 1);
    assertEquals(routingTable.index("idx").shard(0).shards().get(0).state(), UNASSIGNED);
    assertEquals(routingTable.index("idx").shard(0).shards().get(0).unassignedInfo().getNumFailedAllocations(), retries);
    // now we manually retry and get the shard back into initializing
    req.setRetryFailed(true);
    newState = task.execute(clusterState);
    // dry-run=false
    assertNotSame(newState, clusterState);
    clusterState = newState;
    routingTable = clusterState.routingTable();
    assertEquals(routingTable.index("idx").shards().size(), 1);
    assertEquals(routingTable.index("idx").shard(0).shards().get(0).state(), INITIALIZING);
    assertEquals(routingTable.index("idx").shard(0).shards().get(0).unassignedInfo().getNumFailedAllocations(), retries);
}

Example 2 with TestGatewayAllocator

use of org.elasticsearch.test.gateway.TestGatewayAllocator in project elasticsearch by elastic.

the class BalanceConfigurationTests method testNoRebalanceOnPrimaryOverload.

public void testNoRebalanceOnPrimaryOverload() {
    Settings.Builder settings = Settings.builder();
    AllocationService strategy = new AllocationService(settings.build(), randomAllocationDeciders(settings.build(), new ClusterSettings(Settings.Builder.EMPTY_SETTINGS, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS), random()), new TestGatewayAllocator(), new ShardsAllocator() {

        /*
             *  // this allocator tries to rebuild this scenario where a rebalance is
             *  // triggered solely by the primary overload on node [1] where a shard
             *  // is rebalanced to node 0
                routing_nodes:
                -----node_id[0][V]
                --------[test][0], node[0], [R], s[STARTED]
                --------[test][4], node[0], [R], s[STARTED]
                -----node_id[1][V]
                --------[test][0], node[1], [P], s[STARTED]
                --------[test][1], node[1], [P], s[STARTED]
                --------[test][3], node[1], [R], s[STARTED]
                -----node_id[2][V]
                --------[test][1], node[2], [R], s[STARTED]
                --------[test][2], node[2], [R], s[STARTED]
                --------[test][4], node[2], [P], s[STARTED]
                -----node_id[3][V]
                --------[test][2], node[3], [P], s[STARTED]
                --------[test][3], node[3], [P], s[STARTED]
                ---- unassigned
            */
        public void allocate(RoutingAllocation allocation) {
            RoutingNodes.UnassignedShards unassigned = allocation.routingNodes().unassigned();
            ShardRouting[] drain = unassigned.drain();
            // we have to allocate primaries first
            ArrayUtil.timSort(drain, (a, b) -> {
                return a.primary() ? -1 : 1;
            });
            for (ShardRouting sr : drain) {
                switch(sr.id()) {
                    case 0:
                        if (sr.primary()) {
                            allocation.routingNodes().initializeShard(sr, "node1", null, -1, allocation.changes());
                        } else {
                            allocation.routingNodes().initializeShard(sr, "node0", null, -1, allocation.changes());
                        }
                        break;
                    case 1:
                        if (sr.primary()) {
                            allocation.routingNodes().initializeShard(sr, "node1", null, -1, allocation.changes());
                        } else {
                            allocation.routingNodes().initializeShard(sr, "node2", null, -1, allocation.changes());
                        }
                        break;
                    case 2:
                        if (sr.primary()) {
                            allocation.routingNodes().initializeShard(sr, "node3", null, -1, allocation.changes());
                        } else {
                            allocation.routingNodes().initializeShard(sr, "node2", null, -1, allocation.changes());
                        }
                        break;
                    case 3:
                        if (sr.primary()) {
                            allocation.routingNodes().initializeShard(sr, "node3", null, -1, allocation.changes());
                        } else {
                            allocation.routingNodes().initializeShard(sr, "node1", null, -1, allocation.changes());
                        }
                        break;
                    case 4:
                        if (sr.primary()) {
                            allocation.routingNodes().initializeShard(sr, "node2", null, -1, allocation.changes());
                        } else {
                            allocation.routingNodes().initializeShard(sr, "node0", null, -1, allocation.changes());
                        }
                        break;
                }
            }
        }

        @Override
        public ShardAllocationDecision decideShardAllocation(ShardRouting shard, RoutingAllocation allocation) {
            throw new UnsupportedOperationException("explain not supported");
        }
    }, EmptyClusterInfoService.INSTANCE);
    MetaData.Builder metaDataBuilder = MetaData.builder();
    RoutingTable.Builder routingTableBuilder = RoutingTable.builder();
    IndexMetaData.Builder indexMeta = IndexMetaData.builder("test").settings(settings(Version.CURRENT)).numberOfShards(5).numberOfReplicas(1);
    metaDataBuilder = metaDataBuilder.put(indexMeta);
    MetaData metaData = metaDataBuilder.build();
    for (ObjectCursor<IndexMetaData> cursor : metaData.indices().values()) {
        routingTableBuilder.addAsNew(cursor.value);
    }
    RoutingTable routingTable = routingTableBuilder.build();
    DiscoveryNodes.Builder nodes = DiscoveryNodes.builder();
    for (int i = 0; i < 4; i++) {
        DiscoveryNode node = newNode("node" + i);
        nodes.add(node);
    }
    ClusterState clusterState = ClusterState.builder(org.elasticsearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)).nodes(nodes).metaData(metaData).routingTable(routingTable).build();
    routingTable = strategy.reroute(clusterState, "reroute").routingTable();
    clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
    RoutingNodes routingNodes = clusterState.getRoutingNodes();
    for (RoutingNode routingNode : routingNodes) {
        for (ShardRouting shardRouting : routingNode) {
            assertThat(shardRouting.state(), Matchers.equalTo(ShardRoutingState.INITIALIZING));
        }
    }
    strategy = createAllocationService(settings.build(), new NoopGatewayAllocator());
    logger.info("use the new allocator and check if it moves shards");
    routingNodes = clusterState.getRoutingNodes();
    routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
    clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
    routingNodes = clusterState.getRoutingNodes();
    for (RoutingNode routingNode : routingNodes) {
        for (ShardRouting shardRouting : routingNode) {
            assertThat(shardRouting.state(), Matchers.equalTo(ShardRoutingState.STARTED));
        }
    }
    logger.info("start the replica shards");
    routingTable = strategy.applyStartedShards(clusterState, routingNodes.shardsWithState(INITIALIZING)).routingTable();
    clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
    routingNodes = clusterState.getRoutingNodes();
    for (RoutingNode routingNode : routingNodes) {
        for (ShardRouting shardRouting : routingNode) {
            assertThat(shardRouting.state(), Matchers.equalTo(ShardRoutingState.STARTED));
        }
    }
    logger.info("rebalancing");
    routingTable = strategy.reroute(clusterState, "reroute").routingTable();
    clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
    routingNodes = clusterState.getRoutingNodes();
    for (RoutingNode routingNode : routingNodes) {
        for (ShardRouting shardRouting : routingNode) {
            assertThat(shardRouting.state(), Matchers.equalTo(ShardRoutingState.STARTED));
        }
    }
}

Example 3 with TestGatewayAllocator

use of org.elasticsearch.test.gateway.TestGatewayAllocator in project elasticsearch by elastic.

the class ClusterRebalanceRoutingTests method testRebalanceWhileShardFetching.

public void testRebalanceWhileShardFetching() {
    final AtomicBoolean hasFetches = new AtomicBoolean(true);
    AllocationService strategy = createAllocationService(Settings.builder().put(ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING.getKey(), ClusterRebalanceAllocationDecider.ClusterRebalanceType.ALWAYS.toString()).build(), new TestGatewayAllocator() {

        @Override
        public void allocateUnassigned(RoutingAllocation allocation) {
            if (hasFetches.get()) {
                allocation.setHasPendingAsyncFetch();
            }
            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).put(IndexMetaData.INDEX_ROUTING_EXCLUDE_GROUP_SETTING.getKey() + "_id", "node1,node2")).numberOfShards(2).numberOfReplicas(0)).build();
    // we use a second index here (test1) that never gets assigned otherwise allocateUnassigned is never called if we don't have unassigned shards.
    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 have shard sync going on");
    clusterState = ClusterState.builder(clusterState).nodes(DiscoveryNodes.builder(clusterState.nodes()).add(newNode("node2"))).build();
    logger.debug("reroute and check that nothing has changed");
    ClusterState resultState = strategy.reroute(clusterState, "reroute");
    assertThat(resultState, 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 hasFetches to true and reroute we should now see exactly one relocating shard");
    hasFetches.set(false);
    resultState = strategy.reroute(clusterState, "reroute");
    assertThat(resultState, not(equalTo(clusterState)));
    clusterState = resultState;
    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++;
        }
    }
    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));
    }
    assertEquals(numStarted, 1);
    assertEquals(numRelocating, 1);
}

Example 4 with TestGatewayAllocator

use of org.elasticsearch.test.gateway.TestGatewayAllocator 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 5 with TestGatewayAllocator

use of org.elasticsearch.test.gateway.TestGatewayAllocator in project elasticsearch by elastic.

the class MetaDataCreateIndexServiceTests method testShrinkIndexSettings.

public void testShrinkIndexSettings() {
    String indexName = randomAsciiOfLength(10);
    List<Version> versions = Arrays.asList(VersionUtils.randomVersion(random()), VersionUtils.randomVersion(random()), VersionUtils.randomVersion(random()));
    versions.sort((l, r) -> Long.compare(l.id, r.id));
    Version version = versions.get(0);
    Version minCompat = versions.get(1);
    Version upgraded = versions.get(2);
    // create one that won't fail
    ClusterState clusterState = ClusterState.builder(createClusterState(indexName, randomIntBetween(2, 10), 0, Settings.builder().put("index.blocks.write", true).put("index.similarity.default.type", "BM25").put("index.version.created", version).put("index.version.upgraded", upgraded).put("index.version.minimum_compatible", minCompat.luceneVersion).put("index.analysis.analyzer.my_analyzer.tokenizer", "keyword").build())).nodes(DiscoveryNodes.builder().add(newNode("node1"))).build();
    AllocationService service = new AllocationService(Settings.builder().build(), new AllocationDeciders(Settings.EMPTY, Collections.singleton(new MaxRetryAllocationDecider(Settings.EMPTY))), new TestGatewayAllocator(), new BalancedShardsAllocator(Settings.EMPTY), EmptyClusterInfoService.INSTANCE);
    RoutingTable routingTable = service.reroute(clusterState, "reroute").routingTable();
    clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
    // now we start the shard
    routingTable = service.applyStartedShards(clusterState, routingTable.index(indexName).shardsWithState(ShardRoutingState.INITIALIZING)).routingTable();
    clusterState = ClusterState.builder(clusterState).routingTable(routingTable).build();
    Settings.Builder builder = Settings.builder();
    MetaDataCreateIndexService.prepareShrinkIndexSettings(clusterState, Collections.emptySet(), builder, clusterState.metaData().index(indexName).getIndex(), "target");
    assertEquals("similarity settings must be copied", "BM25", builder.build().get("index.similarity.default.type"));
    assertEquals("analysis settings must be copied", "keyword", builder.build().get("index.analysis.analyzer.my_analyzer.tokenizer"));
    assertEquals("node1", builder.build().get("index.routing.allocation.initial_recovery._id"));
    assertEquals("1", builder.build().get("index.allocation.max_retries"));
    assertEquals(version, builder.build().getAsVersion("index.version.created", null));
    assertEquals(upgraded, builder.build().getAsVersion("index.version.upgraded", null));
    assertEquals(minCompat.luceneVersion.toString(), builder.build().get("index.version.minimum_compatible", null));
}