Examples with ShardStats org.opensearch.action.admin.indices.stats.ShardStats used on opensource projects

Example 1 with ShardStats

use of org.opensearch.action.admin.indices.stats.ShardStats in project OpenSearch by opensearch-project.

the class DiskDisruptionIT method testGlobalCheckpointIsSafe.

/**
 * This test checks that all operations below the global checkpoint are properly persisted.
 * It simulates a full power outage by preventing translog checkpoint files to be written and restart the cluster. This means that
 * all un-fsynced data will be lost.
 */
public void testGlobalCheckpointIsSafe() throws Exception {
    startCluster(rarely() ? 5 : 3);
    final int numberOfShards = 1 + randomInt(2);
    assertAcked(prepareCreate("test").setSettings(Settings.builder().put(indexSettings()).put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, numberOfShards).put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, randomInt(2))));
    ensureGreen();
    AtomicBoolean stopGlobalCheckpointFetcher = new AtomicBoolean();
    Map<Integer, Long> shardToGcp = new ConcurrentHashMap<>();
    for (int i = 0; i < numberOfShards; i++) {
        shardToGcp.put(i, SequenceNumbers.NO_OPS_PERFORMED);
    }
    final Thread globalCheckpointSampler = new Thread(() -> {
        while (stopGlobalCheckpointFetcher.get() == false) {
            try {
                for (ShardStats shardStats : client().admin().indices().prepareStats("test").clear().get().getShards()) {
                    final int shardId = shardStats.getShardRouting().id();
                    final long globalCheckpoint = shardStats.getSeqNoStats().getGlobalCheckpoint();
                    shardToGcp.compute(shardId, (i, v) -> Math.max(v, globalCheckpoint));
                }
            } catch (Exception e) {
                // ignore
                logger.debug("failed to fetch shard stats", e);
            }
        }
    });
    globalCheckpointSampler.start();
    try (BackgroundIndexer indexer = new BackgroundIndexer("test", "_doc", client(), -1, RandomizedTest.scaledRandomIntBetween(2, 5), false, random())) {
        indexer.setRequestTimeout(TimeValue.ZERO);
        indexer.setIgnoreIndexingFailures(true);
        indexer.setFailureAssertion(e -> {
        });
        indexer.start(-1);
        waitForDocs(randomIntBetween(1, 100), indexer);
        logger.info("injecting failures");
        injectTranslogFailures();
        logger.info("stopping indexing");
    }
    logger.info("full cluster restart");
    internalCluster().fullRestart(new InternalTestCluster.RestartCallback() {

        @Override
        public void onAllNodesStopped() {
            logger.info("stopping failures");
            stopTranslogFailures();
        }
    });
    stopGlobalCheckpointFetcher.set(true);
    logger.info("waiting for global checkpoint sampler");
    globalCheckpointSampler.join();
    logger.info("waiting for green");
    ensureGreen("test");
    for (ShardStats shardStats : client().admin().indices().prepareStats("test").clear().get().getShards()) {
        final int shardId = shardStats.getShardRouting().id();
        final long maxSeqNo = shardStats.getSeqNoStats().getMaxSeqNo();
        if (shardStats.getShardRouting().active()) {
            assertThat(maxSeqNo, greaterThanOrEqualTo(shardToGcp.get(shardId)));
        }
    }
}

Example 2 with ShardStats

use of org.opensearch.action.admin.indices.stats.ShardStats in project OpenSearch by opensearch-project.

the class SplitIndexIT method testCreateSplitIndex.

public void testCreateSplitIndex() throws Exception {
    internalCluster().ensureAtLeastNumDataNodes(2);
    Version version = VersionUtils.randomIndexCompatibleVersion(random());
    prepareCreate("source").setSettings(Settings.builder().put(indexSettings()).put("number_of_shards", 1).put("index.version.created", version)).get();
    final int docs = randomIntBetween(0, 128);
    for (int i = 0; i < docs; i++) {
        client().prepareIndex("source").setSource("{\"foo\" : \"bar\", \"i\" : " + i + "}", XContentType.JSON).get();
    }
    // ensure all shards are allocated otherwise the ensure green below might not succeed since we require the merge node
    // if we change the setting too quickly we will end up with one replica unassigned which can't be assigned anymore due
    // to the require._name below.
    ensureGreen();
    // relocate all shards to one node such that we can merge it.
    client().admin().indices().prepareUpdateSettings("source").setSettings(Settings.builder().put("index.blocks.write", true)).get();
    ensureGreen();
    final IndicesStatsResponse sourceStats = client().admin().indices().prepareStats("source").setSegments(true).get();
    // disable rebalancing to be able to capture the right stats. balancing can move the target primary
    // making it hard to pin point the source shards.
    client().admin().cluster().prepareUpdateSettings().setTransientSettings(Settings.builder().put(EnableAllocationDecider.CLUSTER_ROUTING_REBALANCE_ENABLE_SETTING.getKey(), "none")).get();
    try {
        final boolean createWithReplicas = randomBoolean();
        assertAcked(client().admin().indices().prepareResizeIndex("source", "target").setResizeType(ResizeType.SPLIT).setSettings(Settings.builder().put("index.number_of_replicas", createWithReplicas ? 1 : 0).put("index.number_of_shards", 2).putNull("index.blocks.write").build()).get());
        ensureGreen();
        final ClusterState state = client().admin().cluster().prepareState().get().getState();
        DiscoveryNode mergeNode = state.nodes().get(state.getRoutingTable().index("target").shard(0).primaryShard().currentNodeId());
        logger.info("split node {}", mergeNode);
        final long maxSeqNo = Arrays.stream(sourceStats.getShards()).filter(shard -> shard.getShardRouting().currentNodeId().equals(mergeNode.getId())).map(ShardStats::getSeqNoStats).mapToLong(SeqNoStats::getMaxSeqNo).max().getAsLong();
        final long maxUnsafeAutoIdTimestamp = Arrays.stream(sourceStats.getShards()).filter(shard -> shard.getShardRouting().currentNodeId().equals(mergeNode.getId())).map(ShardStats::getStats).map(CommonStats::getSegments).mapToLong(SegmentsStats::getMaxUnsafeAutoIdTimestamp).max().getAsLong();
        final IndicesStatsResponse targetStats = client().admin().indices().prepareStats("target").get();
        for (final ShardStats shardStats : targetStats.getShards()) {
            final SeqNoStats seqNoStats = shardStats.getSeqNoStats();
            final ShardRouting shardRouting = shardStats.getShardRouting();
            assertThat("failed on " + shardRouting, seqNoStats.getMaxSeqNo(), equalTo(maxSeqNo));
            assertThat("failed on " + shardRouting, seqNoStats.getLocalCheckpoint(), equalTo(maxSeqNo));
            assertThat("failed on " + shardRouting, shardStats.getStats().getSegments().getMaxUnsafeAutoIdTimestamp(), equalTo(maxUnsafeAutoIdTimestamp));
        }
        final int size = docs > 0 ? 2 * docs : 1;
        assertHitCount(client().prepareSearch("target").setSize(size).setQuery(new TermsQueryBuilder("foo", "bar")).get(), docs);
        if (createWithReplicas == false) {
            // bump replicas
            client().admin().indices().prepareUpdateSettings("target").setSettings(Settings.builder().put("index.number_of_replicas", 1)).get();
            ensureGreen();
            assertHitCount(client().prepareSearch("target").setSize(size).setQuery(new TermsQueryBuilder("foo", "bar")).get(), docs);
        }
        for (int i = docs; i < 2 * docs; i++) {
            client().prepareIndex("target").setSource("{\"foo\" : \"bar\", \"i\" : " + i + "}", XContentType.JSON).get();
        }
        flushAndRefresh();
        assertHitCount(client().prepareSearch("target").setSize(2 * size).setQuery(new TermsQueryBuilder("foo", "bar")).get(), 2 * docs);
        assertHitCount(client().prepareSearch("source").setSize(size).setQuery(new TermsQueryBuilder("foo", "bar")).get(), docs);
        GetSettingsResponse target = client().admin().indices().prepareGetSettings("target").get();
        assertEquals(version, target.getIndexToSettings().get("target").getAsVersion("index.version.created", null));
    } finally {
        // clean up
        client().admin().cluster().prepareUpdateSettings().setTransientSettings(Settings.builder().put(EnableAllocationDecider.CLUSTER_ROUTING_REBALANCE_ENABLE_SETTING.getKey(), (String) null)).get();
    }
}

Example 3 with ShardStats

use of org.opensearch.action.admin.indices.stats.ShardStats in project OpenSearch by opensearch-project.

the class ShrinkIndexIT method testCreateShrinkIndex.

public void testCreateShrinkIndex() {
    internalCluster().ensureAtLeastNumDataNodes(2);
    Version version = VersionUtils.randomVersion(random());
    prepareCreate("source").setSettings(Settings.builder().put(indexSettings()).put("number_of_shards", randomIntBetween(2, 7)).put("index.version.created", version)).get();
    final int docs = randomIntBetween(0, 128);
    for (int i = 0; i < docs; i++) {
        client().prepareIndex("source").setSource("{\"foo\" : \"bar\", \"i\" : " + i + "}", XContentType.JSON).get();
    }
    ImmutableOpenMap<String, DiscoveryNode> dataNodes = client().admin().cluster().prepareState().get().getState().nodes().getDataNodes();
    assertTrue("at least 2 nodes but was: " + dataNodes.size(), dataNodes.size() >= 2);
    DiscoveryNode[] discoveryNodes = dataNodes.values().toArray(DiscoveryNode.class);
    // ensure all shards are allocated otherwise the ensure green below might not succeed since we require the merge node
    // if we change the setting too quickly we will end up with one replica unassigned which can't be assigned anymore due
    // to the require._name below.
    ensureGreen();
    // relocate all shards to one node such that we can merge it.
    client().admin().indices().prepareUpdateSettings("source").setSettings(Settings.builder().put("index.routing.allocation.require._name", discoveryNodes[0].getName()).put("index.blocks.write", true)).get();
    ensureGreen();
    final IndicesStatsResponse sourceStats = client().admin().indices().prepareStats("source").setSegments(true).get();
    // disable rebalancing to be able to capture the right stats. balancing can move the target primary
    // making it hard to pin point the source shards.
    client().admin().cluster().prepareUpdateSettings().setTransientSettings(Settings.builder().put(EnableAllocationDecider.CLUSTER_ROUTING_REBALANCE_ENABLE_SETTING.getKey(), "none")).get();
    // now merge source into a single shard index
    final boolean createWithReplicas = randomBoolean();
    assertAcked(client().admin().indices().prepareResizeIndex("source", "target").setSettings(Settings.builder().put("index.number_of_replicas", createWithReplicas ? 1 : 0).putNull("index.blocks.write").putNull("index.routing.allocation.require._name").build()).get());
    ensureGreen();
    // resolve true merge node - this is not always the node we required as all shards may be on another node
    final ClusterState state = client().admin().cluster().prepareState().get().getState();
    DiscoveryNode mergeNode = state.nodes().get(state.getRoutingTable().index("target").shard(0).primaryShard().currentNodeId());
    logger.info("merge node {}", mergeNode);
    final long maxSeqNo = Arrays.stream(sourceStats.getShards()).filter(shard -> shard.getShardRouting().currentNodeId().equals(mergeNode.getId())).map(ShardStats::getSeqNoStats).mapToLong(SeqNoStats::getMaxSeqNo).max().getAsLong();
    final long maxUnsafeAutoIdTimestamp = Arrays.stream(sourceStats.getShards()).filter(shard -> shard.getShardRouting().currentNodeId().equals(mergeNode.getId())).map(ShardStats::getStats).map(CommonStats::getSegments).mapToLong(SegmentsStats::getMaxUnsafeAutoIdTimestamp).max().getAsLong();
    final IndicesStatsResponse targetStats = client().admin().indices().prepareStats("target").get();
    for (final ShardStats shardStats : targetStats.getShards()) {
        final SeqNoStats seqNoStats = shardStats.getSeqNoStats();
        final ShardRouting shardRouting = shardStats.getShardRouting();
        assertThat("failed on " + shardRouting, seqNoStats.getMaxSeqNo(), equalTo(maxSeqNo));
        assertThat("failed on " + shardRouting, seqNoStats.getLocalCheckpoint(), equalTo(maxSeqNo));
        assertThat("failed on " + shardRouting, shardStats.getStats().getSegments().getMaxUnsafeAutoIdTimestamp(), equalTo(maxUnsafeAutoIdTimestamp));
    }
    final int size = docs > 0 ? 2 * docs : 1;
    assertHitCount(client().prepareSearch("target").setSize(size).setQuery(new TermsQueryBuilder("foo", "bar")).get(), docs);
    if (createWithReplicas == false) {
        // bump replicas
        client().admin().indices().prepareUpdateSettings("target").setSettings(Settings.builder().put("index.number_of_replicas", 1)).get();
        ensureGreen();
        assertHitCount(client().prepareSearch("target").setSize(size).setQuery(new TermsQueryBuilder("foo", "bar")).get(), docs);
    }
    for (int i = docs; i < 2 * docs; i++) {
        client().prepareIndex("target").setSource("{\"foo\" : \"bar\", \"i\" : " + i + "}", XContentType.JSON).get();
    }
    flushAndRefresh();
    assertHitCount(client().prepareSearch("target").setSize(2 * size).setQuery(new TermsQueryBuilder("foo", "bar")).get(), 2 * docs);
    assertHitCount(client().prepareSearch("source").setSize(size).setQuery(new TermsQueryBuilder("foo", "bar")).get(), docs);
    GetSettingsResponse target = client().admin().indices().prepareGetSettings("target").get();
    assertEquals(version, target.getIndexToSettings().get("target").getAsVersion("index.version.created", null));
    // clean up
    client().admin().cluster().prepareUpdateSettings().setTransientSettings(Settings.builder().put(EnableAllocationDecider.CLUSTER_ROUTING_REBALANCE_ENABLE_SETTING.getKey(), (String) null)).get();
}

Example 4 with ShardStats

use of org.opensearch.action.admin.indices.stats.ShardStats in project OpenSearch by opensearch-project.

the class IndexingPressureIT method getPrimaryReplicaNodeNames.

private Tuple<String, String> getPrimaryReplicaNodeNames() {
    IndicesStatsResponse response = client().admin().indices().prepareStats(INDEX_NAME).get();
    String primaryId = Stream.of(response.getShards()).map(ShardStats::getShardRouting).filter(ShardRouting::primary).findAny().get().currentNodeId();
    String replicaId = Stream.of(response.getShards()).map(ShardStats::getShardRouting).filter(sr -> sr.primary() == false).findAny().get().currentNodeId();
    DiscoveryNodes nodes = client().admin().cluster().prepareState().get().getState().nodes();
    String primaryName = nodes.get(primaryId).getName();
    String replicaName = nodes.get(replicaId).getName();
    return new Tuple<>(primaryName, replicaName);
}

Example 5 with ShardStats

use of org.opensearch.action.admin.indices.stats.ShardStats in project OpenSearch by opensearch-project.

the class ShardIndexingPressureIT method getPrimaryReplicaNodeNames.

private Tuple<String, String> getPrimaryReplicaNodeNames(String indexName) {
    IndicesStatsResponse response = client().admin().indices().prepareStats(indexName).get();
    String primaryId = Stream.of(response.getShards()).map(ShardStats::getShardRouting).filter(ShardRouting::primary).findAny().get().currentNodeId();
    String replicaId = Stream.of(response.getShards()).map(ShardStats::getShardRouting).filter(sr -> sr.primary() == false).findAny().get().currentNodeId();
    DiscoveryNodes nodes = client().admin().cluster().prepareState().get().getState().nodes();
    String primaryName = nodes.get(primaryId).getName();
    String replicaName = nodes.get(replicaId).getName();
    return new Tuple<>(primaryName, replicaName);
}