Examples with Writer org.opensearch.gateway.PersistedClusterStateService.Writer used on opensource projects

Example 1 with Writer

use of org.opensearch.gateway.PersistedClusterStateService.Writer in project OpenSearch by opensearch-project.

the class PersistedClusterStateServiceTests method testFailsIfFreshestStateIsInStaleTerm.

public void testFailsIfFreshestStateIsInStaleTerm() throws IOException {
    final Path[] dataPaths1 = createDataPaths();
    final Path[] dataPaths2 = createDataPaths();
    final Path[] combinedPaths = Stream.concat(Arrays.stream(dataPaths1), Arrays.stream(dataPaths2)).toArray(Path[]::new);
    final long staleCurrentTerm = randomLongBetween(1L, Long.MAX_VALUE - 1);
    final long freshCurrentTerm = randomLongBetween(staleCurrentTerm + 1, Long.MAX_VALUE);
    final long freshTerm = randomLongBetween(1L, Long.MAX_VALUE);
    final long staleTerm = randomBoolean() ? freshTerm : randomLongBetween(1L, freshTerm);
    final long freshVersion = randomLongBetween(2L, Long.MAX_VALUE);
    final long staleVersion = staleTerm == freshTerm ? randomLongBetween(1L, freshVersion - 1) : randomLongBetween(1L, Long.MAX_VALUE);
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(combinedPaths)) {
        try (Writer writer = newPersistedClusterStateService(nodeEnvironment).createWriter()) {
            final ClusterState clusterState = loadPersistedClusterState(newPersistedClusterStateService(nodeEnvironment));
            assertFalse(clusterState.metadata().clusterUUIDCommitted());
            writeState(writer, staleCurrentTerm, ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).version(1).coordinationMetadata(CoordinationMetadata.builder(clusterState.coordinationMetadata()).term(staleTerm).build())).version(staleVersion).build(), clusterState);
        }
    }
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(dataPaths1)) {
        try (Writer writer = newPersistedClusterStateService(nodeEnvironment).createWriter()) {
            final ClusterState clusterState = loadPersistedClusterState(newPersistedClusterStateService(nodeEnvironment));
            writeState(writer, freshCurrentTerm, clusterState, clusterState);
        }
    }
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(dataPaths2)) {
        try (Writer writer = newPersistedClusterStateService(nodeEnvironment).createWriter()) {
            final PersistedClusterStateService.OnDiskState onDiskState = newPersistedClusterStateService(nodeEnvironment).loadBestOnDiskState();
            final ClusterState clusterState = clusterStateFromMetadata(onDiskState.lastAcceptedVersion, onDiskState.metadata);
            writeState(writer, onDiskState.currentTerm, ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).version(2).coordinationMetadata(CoordinationMetadata.builder(clusterState.coordinationMetadata()).term(freshTerm).build())).version(freshVersion).build(), clusterState);
        }
    }
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(combinedPaths)) {
        final String message = expectThrows(IllegalStateException.class, () -> newPersistedClusterStateService(nodeEnvironment).loadBestOnDiskState()).getMessage();
        assertThat(message, allOf(containsString("inconsistent terms found"), containsString(Long.toString(staleCurrentTerm)), containsString(Long.toString(freshCurrentTerm))));
        assertTrue("[" + message + "] should match " + Arrays.toString(dataPaths1), Arrays.stream(dataPaths1).anyMatch(p -> message.contains(p.toString())));
        assertTrue("[" + message + "] should match " + Arrays.toString(dataPaths2), Arrays.stream(dataPaths2).anyMatch(p -> message.contains(p.toString())));
    }
}

Example 2 with Writer

use of org.opensearch.gateway.PersistedClusterStateService.Writer in project OpenSearch by opensearch-project.

the class PersistedClusterStateServiceTests method testFailsIfGlobalMetadataIsMissing.

public void testFailsIfGlobalMetadataIsMissing() throws IOException {
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(createDataPaths())) {
        try (Writer writer = newPersistedClusterStateService(nodeEnvironment).createWriter()) {
            final ClusterState clusterState = loadPersistedClusterState(newPersistedClusterStateService(nodeEnvironment));
            writeState(writer, 0L, ClusterState.builder(clusterState).version(randomLongBetween(1L, Long.MAX_VALUE)).build(), clusterState);
        }
        final Path brokenPath = randomFrom(nodeEnvironment.nodeDataPaths());
        try (Directory directory = new NIOFSDirectory(brokenPath.resolve(PersistedClusterStateService.METADATA_DIRECTORY_NAME))) {
            final IndexWriterConfig indexWriterConfig = new IndexWriterConfig();
            indexWriterConfig.setOpenMode(IndexWriterConfig.OpenMode.CREATE);
            try (IndexWriter indexWriter = new IndexWriter(directory, indexWriterConfig)) {
                indexWriter.commit();
            }
        }
        final String message = expectThrows(IllegalStateException.class, () -> newPersistedClusterStateService(nodeEnvironment).loadBestOnDiskState()).getMessage();
        assertThat(message, allOf(containsString("no global metadata found"), containsString(brokenPath.toString())));
    }
}

Example 3 with Writer

use of org.opensearch.gateway.PersistedClusterStateService.Writer in project OpenSearch by opensearch-project.

the class PersistedClusterStateServiceTests method testFailsIfIndexMetadataIsDuplicated.

public void testFailsIfIndexMetadataIsDuplicated() throws IOException {
    // if someone attempted surgery on the metadata index by hand, e.g. deleting broken segments, then maybe some index metadata
    // is duplicated
    final Path[] dataPaths1 = createDataPaths();
    final Path[] dataPaths2 = createDataPaths();
    final Path[] combinedPaths = Stream.concat(Arrays.stream(dataPaths1), Arrays.stream(dataPaths2)).toArray(Path[]::new);
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(combinedPaths)) {
        final String indexUUID = UUIDs.randomBase64UUID(random());
        final String indexName = randomAlphaOfLength(10);
        try (Writer writer = newPersistedClusterStateService(nodeEnvironment).createWriter()) {
            final ClusterState clusterState = loadPersistedClusterState(newPersistedClusterStateService(nodeEnvironment));
            writeState(writer, 0L, ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).version(1L).coordinationMetadata(CoordinationMetadata.builder(clusterState.coordinationMetadata()).term(1L).build()).put(IndexMetadata.builder(indexName).version(1L).settings(Settings.builder().put(IndexMetadata.INDEX_NUMBER_OF_SHARDS_SETTING.getKey(), 1).put(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.getKey(), 0).put(IndexMetadata.SETTING_INDEX_VERSION_CREATED.getKey(), Version.CURRENT).put(IndexMetadata.SETTING_INDEX_UUID, indexUUID)))).incrementVersion().build(), clusterState);
        }
        final Path brokenPath = randomFrom(nodeEnvironment.nodeDataPaths());
        final Path dupPath = randomValueOtherThan(brokenPath, () -> randomFrom(nodeEnvironment.nodeDataPaths()));
        try (Directory directory = new NIOFSDirectory(brokenPath.resolve(PersistedClusterStateService.METADATA_DIRECTORY_NAME));
            Directory dupDirectory = new NIOFSDirectory(dupPath.resolve(PersistedClusterStateService.METADATA_DIRECTORY_NAME))) {
            try (IndexWriter indexWriter = new IndexWriter(directory, new IndexWriterConfig())) {
                // do not duplicate global metadata
                indexWriter.deleteDocuments(new Term("type", "global"));
                indexWriter.addIndexes(dupDirectory);
                indexWriter.commit();
            }
        }
        final String message = expectThrows(IllegalStateException.class, () -> newPersistedClusterStateService(nodeEnvironment).loadBestOnDiskState()).getMessage();
        assertThat(message, allOf(containsString("duplicate metadata found"), containsString(brokenPath.toString()), containsString(indexName), containsString(indexUUID)));
    }
}

Example 4 with Writer

use of org.opensearch.gateway.PersistedClusterStateService.Writer in project OpenSearch by opensearch-project.

the class PersistedClusterStateServiceTests method testPersistsAndReloadsIndexMetadataIffVersionOrTermChanges.

public void testPersistsAndReloadsIndexMetadataIffVersionOrTermChanges() throws IOException {
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(createDataPaths())) {
        final PersistedClusterStateService persistedClusterStateService = newPersistedClusterStateService(nodeEnvironment);
        final long globalVersion = randomLongBetween(1L, Long.MAX_VALUE);
        final String indexUUID = UUIDs.randomBase64UUID(random());
        final long indexMetadataVersion = randomLongBetween(1L, Long.MAX_VALUE);
        final long oldTerm = randomLongBetween(1L, Long.MAX_VALUE - 1);
        final long newTerm = randomLongBetween(oldTerm + 1, Long.MAX_VALUE);
        try (Writer writer = persistedClusterStateService.createWriter()) {
            ClusterState clusterState = loadPersistedClusterState(persistedClusterStateService);
            writeState(writer, 0L, ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).version(globalVersion).coordinationMetadata(CoordinationMetadata.builder(clusterState.coordinationMetadata()).term(oldTerm).build()).put(IndexMetadata.builder("test").version(// -1 because it's incremented in .put()
            indexMetadataVersion - 1).settings(Settings.builder().put(IndexMetadata.INDEX_NUMBER_OF_SHARDS_SETTING.getKey(), 1).put(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.getKey(), 0).put(IndexMetadata.SETTING_INDEX_VERSION_CREATED.getKey(), Version.CURRENT).put(IndexMetadata.SETTING_INDEX_UUID, indexUUID)))).incrementVersion().build(), clusterState);
            clusterState = loadPersistedClusterState(persistedClusterStateService);
            IndexMetadata indexMetadata = clusterState.metadata().index("test");
            assertThat(indexMetadata.getIndexUUID(), equalTo(indexUUID));
            assertThat(indexMetadata.getVersion(), equalTo(indexMetadataVersion));
            assertThat(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.get(indexMetadata.getSettings()), equalTo(0));
            // ensure we do not wastefully persist the same index metadata version by making a bad update with the same version
            writer.writeIncrementalStateAndCommit(0L, clusterState, ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).put(IndexMetadata.builder(indexMetadata).settings(Settings.builder().put(indexMetadata.getSettings()).put(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.getKey(), 1)).build(), false)).incrementVersion().build());
            clusterState = loadPersistedClusterState(persistedClusterStateService);
            indexMetadata = clusterState.metadata().index("test");
            assertThat(indexMetadata.getIndexUUID(), equalTo(indexUUID));
            assertThat(indexMetadata.getVersion(), equalTo(indexMetadataVersion));
            assertThat(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.get(indexMetadata.getSettings()), equalTo(0));
            // ensure that we do persist the same index metadata version by making an update with a higher version
            writeState(writer, 0L, ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).put(IndexMetadata.builder(indexMetadata).settings(Settings.builder().put(indexMetadata.getSettings()).put(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.getKey(), 2)).build(), true)).incrementVersion().build(), clusterState);
            clusterState = loadPersistedClusterState(persistedClusterStateService);
            indexMetadata = clusterState.metadata().index("test");
            assertThat(indexMetadata.getVersion(), equalTo(indexMetadataVersion + 1));
            assertThat(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.get(indexMetadata.getSettings()), equalTo(2));
            // ensure that we also persist the index metadata when the term changes
            writeState(writer, 0L, ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).coordinationMetadata(CoordinationMetadata.builder(clusterState.coordinationMetadata()).term(newTerm).build()).put(IndexMetadata.builder(indexMetadata).settings(Settings.builder().put(indexMetadata.getSettings()).put(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.getKey(), 3)).build(), false)).incrementVersion().build(), clusterState);
        }
        final ClusterState clusterState = loadPersistedClusterState(persistedClusterStateService);
        final IndexMetadata indexMetadata = clusterState.metadata().index("test");
        assertThat(indexMetadata.getIndexUUID(), equalTo(indexUUID));
        assertThat(indexMetadata.getVersion(), equalTo(indexMetadataVersion + 1));
        assertThat(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.get(indexMetadata.getSettings()), equalTo(3));
    }
}

Example 5 with Writer

use of org.opensearch.gateway.PersistedClusterStateService.Writer in project OpenSearch by opensearch-project.

the class PersistedClusterStateServiceTests method testFailsOnMismatchedNodeIds.

public void testFailsOnMismatchedNodeIds() throws IOException {
    final Path[] dataPaths1 = createDataPaths();
    final Path[] dataPaths2 = createDataPaths();
    final String[] nodeIds = new String[2];
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(dataPaths1)) {
        nodeIds[0] = nodeEnvironment.nodeId();
        try (Writer writer = newPersistedClusterStateService(nodeEnvironment).createWriter()) {
            final ClusterState clusterState = loadPersistedClusterState(newPersistedClusterStateService(nodeEnvironment));
            writer.writeFullStateAndCommit(0L, ClusterState.builder(clusterState).version(randomLongBetween(1L, Long.MAX_VALUE)).build());
        }
    }
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(dataPaths2)) {
        nodeIds[1] = nodeEnvironment.nodeId();
        try (Writer writer = newPersistedClusterStateService(nodeEnvironment).createWriter()) {
            final ClusterState clusterState = loadPersistedClusterState(newPersistedClusterStateService(nodeEnvironment));
            writer.writeFullStateAndCommit(0L, ClusterState.builder(clusterState).version(randomLongBetween(1L, Long.MAX_VALUE)).build());
        }
    }
    NodeMetadata.FORMAT.cleanupOldFiles(Long.MAX_VALUE, dataPaths2);
    final Path[] combinedPaths = Stream.concat(Arrays.stream(dataPaths1), Arrays.stream(dataPaths2)).toArray(Path[]::new);
    final String failure = expectThrows(IllegalStateException.class, () -> newNodeEnvironment(combinedPaths)).getMessage();
    assertThat(failure, allOf(containsString("unexpected node ID in metadata"), containsString(nodeIds[0]), containsString(nodeIds[1])));
    assertTrue("[" + failure + "] should match " + Arrays.toString(dataPaths2), Arrays.stream(dataPaths2).anyMatch(p -> failure.contains(p.toString())));
    // verify that loadBestOnDiskState has same check
    final String message = expectThrows(IllegalStateException.class, () -> new PersistedClusterStateService(Stream.of(combinedPaths).map(path -> NodeEnvironment.resolveNodePath(path, 0)).toArray(Path[]::new), nodeIds[0], xContentRegistry(), BigArrays.NON_RECYCLING_INSTANCE, new ClusterSettings(Settings.EMPTY, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS), () -> 0L).loadBestOnDiskState()).getMessage();
    assertThat(message, allOf(containsString("unexpected node ID in metadata"), containsString(nodeIds[0]), containsString(nodeIds[1])));
    assertTrue("[" + message + "] should match " + Arrays.toString(dataPaths2), Arrays.stream(dataPaths2).anyMatch(p -> message.contains(p.toString())));
}