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

Example 11 with Writer

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

the class PersistedClusterStateServiceTests method testLoadsFreshestState.

public void testLoadsFreshestState() throws IOException {
    final Path[] dataPaths = createDataPaths();
    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);
    final HashSet<Path> unimportantPaths = Arrays.stream(dataPaths).collect(Collectors.toCollection(HashSet::new));
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(dataPaths)) {
        final ClusterState clusterState = loadPersistedClusterState(newPersistedClusterStateService(nodeEnvironment));
        try (Writer writer = newPersistedClusterStateService(nodeEnvironment).createWriter()) {
            writeState(writer, staleTerm, ClusterState.builder(clusterState).version(staleVersion).metadata(Metadata.builder(clusterState.metadata()).coordinationMetadata(CoordinationMetadata.builder(clusterState.coordinationMetadata()).term(staleTerm).build())).build(), clusterState);
        }
    }
    final Path freshPath = randomFrom(dataPaths);
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(new Path[] { freshPath })) {
        unimportantPaths.remove(freshPath);
        try (Writer writer = newPersistedClusterStateService(nodeEnvironment).createWriter()) {
            final ClusterState clusterState = loadPersistedClusterState(newPersistedClusterStateService(nodeEnvironment));
            writeState(writer, freshTerm, ClusterState.builder(clusterState).version(freshVersion).metadata(Metadata.builder(clusterState.metadata()).coordinationMetadata(CoordinationMetadata.builder(clusterState.coordinationMetadata()).term(freshTerm).build())).build(), clusterState);
        }
    }
    if (randomBoolean() && unimportantPaths.isEmpty() == false) {
        IOUtils.rm(randomFrom(unimportantPaths));
    }
    // verify that the freshest state is chosen
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(dataPaths)) {
        final PersistedClusterStateService.OnDiskState onDiskState = newPersistedClusterStateService(nodeEnvironment).loadBestOnDiskState();
        final ClusterState clusterState = clusterStateFromMetadata(onDiskState.lastAcceptedVersion, onDiskState.metadata);
        assertThat(clusterState.term(), equalTo(freshTerm));
        assertThat(clusterState.version(), equalTo(freshVersion));
    }
}

Example 12 with Writer

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

the class PersistedClusterStateServiceTests method testReloadsMetadataAcrossMultipleSegments.

public void testReloadsMetadataAcrossMultipleSegments() throws IOException {
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(createDataPaths())) {
        final PersistedClusterStateService persistedClusterStateService = newPersistedClusterStateService(nodeEnvironment);
        final int writes = between(5, 20);
        final List<Index> indices = new ArrayList<>(writes);
        try (Writer writer = persistedClusterStateService.createWriter()) {
            for (int i = 0; i < writes; i++) {
                final Index index = new Index("test-" + i, UUIDs.randomBase64UUID(random()));
                indices.add(index);
                final ClusterState clusterState = loadPersistedClusterState(persistedClusterStateService);
                writeState(writer, 0L, ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).version(i + 2).put(IndexMetadata.builder(index.getName()).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, index.getUUID())))).incrementVersion().build(), clusterState);
            }
        }
        final ClusterState clusterState = loadPersistedClusterState(persistedClusterStateService);
        for (Index index : indices) {
            final IndexMetadata indexMetadata = clusterState.metadata().index(index.getName());
            assertThat(indexMetadata.getIndexUUID(), equalTo(index.getUUID()));
        }
    }
}

Example 13 with Writer

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

the class PersistedClusterStateServiceTests method testFailsIfGlobalMetadataIsDuplicated.

public void testFailsIfGlobalMetadataIsDuplicated() throws IOException {
    // if someone attempted surgery on the metadata index by hand, e.g. deleting broken segments, then maybe the global 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)) {
        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());
        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())) {
                indexWriter.addIndexes(dupDirectory);
                indexWriter.commit();
            }
        }
        final String message = expectThrows(IllegalStateException.class, () -> newPersistedClusterStateService(nodeEnvironment).loadBestOnDiskState()).getMessage();
        assertThat(message, allOf(containsString("duplicate global metadata found"), containsString(brokenPath.toString())));
    }
}

Example 14 with Writer

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

the class PersistedClusterStateServiceTests method testCrashesWithIOErrorOnCommitFailure.

public void testCrashesWithIOErrorOnCommitFailure() throws IOException {
    final AtomicBoolean throwException = new AtomicBoolean();
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(createDataPaths())) {
        final PersistedClusterStateService persistedClusterStateService = new PersistedClusterStateService(nodeEnvironment, xContentRegistry(), getBigArrays(), new ClusterSettings(Settings.EMPTY, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS), () -> 0L) {

            @Override
            Directory createDirectory(Path path) throws IOException {
                return new FilterDirectory(super.createDirectory(path)) {

                    @Override
                    public void rename(String source, String dest) throws IOException {
                        if (throwException.get() && dest.startsWith("segments")) {
                            throw new IOException("simulated");
                        }
                    }
                };
            }
        };
        try (Writer writer = persistedClusterStateService.createWriter()) {
            final ClusterState clusterState = loadPersistedClusterState(persistedClusterStateService);
            final long newTerm = randomNonNegativeLong();
            final ClusterState newState = ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).clusterUUID(UUIDs.randomBase64UUID(random())).clusterUUIDCommitted(true).version(randomLongBetween(1L, Long.MAX_VALUE))).incrementVersion().build();
            throwException.set(true);
            assertThat(expectThrows(IOError.class, () -> {
                if (randomBoolean()) {
                    writeState(writer, newTerm, newState, clusterState);
                } else {
                    writer.commit(newTerm, newState.version());
                }
            }).getMessage(), containsString("simulated"));
            assertFalse(writer.isOpen());
        }
        // check if we can open writer again
        try (Writer ignored = persistedClusterStateService.createWriter()) {
        }
    }
}

Example 15 with Writer

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

the class PersistedClusterStateServiceTests method testPersistsAndReloadsIndexMetadataForMultipleIndices.

public void testPersistsAndReloadsIndexMetadataForMultipleIndices() throws IOException {
    try (NodeEnvironment nodeEnvironment = newNodeEnvironment(createDataPaths())) {
        final PersistedClusterStateService persistedClusterStateService = newPersistedClusterStateService(nodeEnvironment);
        final long term = randomLongBetween(1L, Long.MAX_VALUE);
        final String addedIndexUuid = UUIDs.randomBase64UUID(random());
        final String updatedIndexUuid = UUIDs.randomBase64UUID(random());
        final String deletedIndexUuid = UUIDs.randomBase64UUID(random());
        try (Writer writer = persistedClusterStateService.createWriter()) {
            final ClusterState clusterState = loadPersistedClusterState(persistedClusterStateService);
            writeState(writer, 0L, ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).version(clusterState.metadata().version() + 1).coordinationMetadata(CoordinationMetadata.builder(clusterState.coordinationMetadata()).term(term).build()).put(IndexMetadata.builder("updated").version(// -1 because it's incremented in .put()
            randomLongBetween(0L, Long.MAX_VALUE - 1) - 1).settings(Settings.builder().put(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.getKey(), 1).put(IndexMetadata.INDEX_NUMBER_OF_SHARDS_SETTING.getKey(), 1).put(IndexMetadata.SETTING_INDEX_VERSION_CREATED.getKey(), Version.CURRENT).put(IndexMetadata.SETTING_INDEX_UUID, updatedIndexUuid))).put(IndexMetadata.builder("deleted").version(// -1 because it's incremented in .put()
            randomLongBetween(0L, Long.MAX_VALUE - 1) - 1).settings(Settings.builder().put(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.getKey(), 1).put(IndexMetadata.INDEX_NUMBER_OF_SHARDS_SETTING.getKey(), 1).put(IndexMetadata.SETTING_INDEX_VERSION_CREATED.getKey(), Version.CURRENT).put(IndexMetadata.SETTING_INDEX_UUID, deletedIndexUuid)))).incrementVersion().build(), clusterState);
        }
        try (Writer writer = persistedClusterStateService.createWriter()) {
            final ClusterState clusterState = loadPersistedClusterState(persistedClusterStateService);
            assertThat(clusterState.metadata().indices().size(), equalTo(2));
            assertThat(clusterState.metadata().index("updated").getIndexUUID(), equalTo(updatedIndexUuid));
            assertThat(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.get(clusterState.metadata().index("updated").getSettings()), equalTo(1));
            assertThat(clusterState.metadata().index("deleted").getIndexUUID(), equalTo(deletedIndexUuid));
            writeState(writer, 0L, ClusterState.builder(clusterState).metadata(Metadata.builder(clusterState.metadata()).version(clusterState.metadata().version() + 1).remove("deleted").put(IndexMetadata.builder("updated").settings(Settings.builder().put(clusterState.metadata().index("updated").getSettings()).put(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.getKey(), 2))).put(IndexMetadata.builder("added").version(// -1 because it's incremented in .put()
            randomLongBetween(0L, Long.MAX_VALUE - 1) - 1).settings(Settings.builder().put(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.getKey(), 1).put(IndexMetadata.INDEX_NUMBER_OF_SHARDS_SETTING.getKey(), 1).put(IndexMetadata.SETTING_INDEX_VERSION_CREATED.getKey(), Version.CURRENT).put(IndexMetadata.SETTING_INDEX_UUID, addedIndexUuid)))).incrementVersion().build(), clusterState);
        }
        final ClusterState clusterState = loadPersistedClusterState(persistedClusterStateService);
        assertThat(clusterState.metadata().indices().size(), equalTo(2));
        assertThat(clusterState.metadata().index("updated").getIndexUUID(), equalTo(updatedIndexUuid));
        assertThat(IndexMetadata.INDEX_NUMBER_OF_REPLICAS_SETTING.get(clusterState.metadata().index("updated").getSettings()), equalTo(2));
        assertThat(clusterState.metadata().index("added").getIndexUUID(), equalTo(addedIndexUuid));
        assertThat(clusterState.metadata().index("deleted"), nullValue());
    }
}