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[Writable Warm] Composite Directory implementation and integrating it…
… with FileCache (opensearch-project#12782) * Composite Directory POC Signed-off-by: Shreyansh Ray <[email protected]> * Refactor TransferManager interface to RemoteStoreFileTrackerAdapter Signed-off-by: Shreyansh Ray <[email protected]> * Implement block level fetch for Composite Directory Signed-off-by: Shreyansh Ray <[email protected]> * Removed CACHE state from FileTracker Signed-off-by: Shreyansh Ray <[email protected]> * Fixes after latest pull Signed-off-by: Shreyansh Ray <[email protected]> * Add new setting for warm, remove store type setting, FileTracker and RemoteStoreFileTrackerAdapter, CompositeDirectoryFactory and update Composite Directory implementation Signed-off-by: Shreyansh Ray <[email protected]> * Modify TransferManager - replace BlobContainer with Functional Interface to fetch an InputStream instead Signed-off-by: Shreyansh Ray <[email protected]> * Reuse OnDemandBlockSnapshotIndexInput instead of OnDemandBlockCompositeIndexInput Signed-off-by: Shreyansh Ray <[email protected]> * Modify constructors to avoid breaking public api contract and code review fixes Signed-off-by: Shreyansh Ray <[email protected]> * Add experimental annotations for newly created classes and review comment fixes Signed-off-by: Shreyansh Ray <[email protected]> * Use ref count as a temporary measure to prevent file from eviction until uploaded to Remote Signed-off-by: Shreyansh Ray <[email protected]> * Remove method level locks Signed-off-by: Shreyansh Ray <[email protected]> * Handle tmp file deletion Signed-off-by: Shreyansh Ray <[email protected]> * Nit fixes Signed-off-by: Shreyansh Ray <[email protected]> * Handle delete and close in Composite Directory, log current state of FileCache and correct it's clear method and modify unit and integration tests as per review comments Signed-off-by: Shreyansh Ray <[email protected]> * Refactor usages of WRITEABLE_REMOTE_INDEX_SETTING to TIERED_REMOTE_INDEX_SETTING Signed-off-by: Shreyansh Ray <[email protected]> * Add tests for FileCachedIndexInput and review comment fixes Signed-off-by: Shreyansh Ray <[email protected]> * Add additional IT for feature flag disabled Signed-off-by: Shreyansh Ray <[email protected]> * Move setting for Partial Locality type behind Feature Flag, fix bug for ref count via cloneMap in FullFileCachedIndexInput and other review fixes Signed-off-by: Shreyansh Ray <[email protected]> * Minor test and nit fixes Signed-off-by: Shreyansh Ray <[email protected]> * Add javadocs for FullFileCachedIndexInput Signed-off-by: Shreyansh Ray <[email protected]> * Minor precommit fixes Signed-off-by: Shreyansh Ray <[email protected]> --------- Signed-off-by: Shreyansh Ray <[email protected]>
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server/src/internalClusterTest/java/org/opensearch/remotestore/WritableWarmIT.java
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| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
|
|
||
| package org.opensearch.remotestore; | ||
|
|
||
| import com.carrotsearch.randomizedtesting.annotations.ThreadLeakFilters; | ||
|
|
||
| import org.apache.lucene.store.Directory; | ||
| import org.apache.lucene.store.FilterDirectory; | ||
| import org.opensearch.action.admin.indices.delete.DeleteIndexRequest; | ||
| import org.opensearch.action.admin.indices.get.GetIndexRequest; | ||
| import org.opensearch.action.admin.indices.get.GetIndexResponse; | ||
| import org.opensearch.action.search.SearchResponse; | ||
| import org.opensearch.cluster.metadata.IndexMetadata; | ||
| import org.opensearch.common.settings.Settings; | ||
| import org.opensearch.common.settings.SettingsException; | ||
| import org.opensearch.common.util.FeatureFlags; | ||
| import org.opensearch.index.IndexModule; | ||
| import org.opensearch.index.query.QueryBuilders; | ||
| import org.opensearch.index.shard.IndexShard; | ||
| import org.opensearch.index.store.CompositeDirectory; | ||
| import org.opensearch.index.store.remote.file.CleanerDaemonThreadLeakFilter; | ||
| import org.opensearch.index.store.remote.filecache.FileCache; | ||
| import org.opensearch.index.store.remote.utils.FileTypeUtils; | ||
| import org.opensearch.indices.IndicesService; | ||
| import org.opensearch.node.Node; | ||
| import org.opensearch.test.InternalTestCluster; | ||
| import org.opensearch.test.OpenSearchIntegTestCase; | ||
|
|
||
| import java.util.Arrays; | ||
| import java.util.HashSet; | ||
| import java.util.Set; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| import static org.opensearch.test.hamcrest.OpenSearchAssertions.assertAcked; | ||
| import static org.opensearch.test.hamcrest.OpenSearchAssertions.assertHitCount; | ||
|
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| @ThreadLeakFilters(filters = CleanerDaemonThreadLeakFilter.class) | ||
| @OpenSearchIntegTestCase.ClusterScope(scope = OpenSearchIntegTestCase.Scope.TEST, numDataNodes = 0, supportsDedicatedMasters = false) | ||
| // Uncomment the below line to enable trace level logs for this test for better debugging | ||
| // @TestLogging(reason = "Getting trace logs from composite directory package", value = "org.opensearch.index.store:TRACE") | ||
| public class WritableWarmIT extends RemoteStoreBaseIntegTestCase { | ||
|
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| protected static final String INDEX_NAME = "test-idx-1"; | ||
| protected static final int NUM_DOCS_IN_BULK = 1000; | ||
|
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| /* | ||
| Disabling MockFSIndexStore plugin as the MockFSDirectoryFactory wraps the FSDirectory over a OpenSearchMockDirectoryWrapper which extends FilterDirectory (whereas FSDirectory extends BaseDirectory) | ||
| As a result of this wrapping the local directory of Composite Directory does not satisfy the assertion that local directory must be of type FSDirectory | ||
| */ | ||
| @Override | ||
| protected boolean addMockIndexStorePlugin() { | ||
| return false; | ||
| } | ||
|
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||
| @Override | ||
| protected Settings featureFlagSettings() { | ||
| Settings.Builder featureSettings = Settings.builder(); | ||
| featureSettings.put(FeatureFlags.TIERED_REMOTE_INDEX, true); | ||
| return featureSettings.build(); | ||
| } | ||
|
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| public void testWritableWarmFeatureFlagDisabled() { | ||
| Settings clusterSettings = Settings.builder().put(super.nodeSettings(0)).put(FeatureFlags.TIERED_REMOTE_INDEX, false).build(); | ||
| InternalTestCluster internalTestCluster = internalCluster(); | ||
| internalTestCluster.startClusterManagerOnlyNode(clusterSettings); | ||
| internalTestCluster.startDataOnlyNode(clusterSettings); | ||
|
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| Settings indexSettings = Settings.builder() | ||
| .put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, 1) | ||
| .put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, 0) | ||
| .put(IndexModule.INDEX_STORE_LOCALITY_SETTING.getKey(), IndexModule.DataLocalityType.PARTIAL.name()) | ||
| .build(); | ||
|
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||
| try { | ||
| prepareCreate(INDEX_NAME).setSettings(indexSettings).get(); | ||
| fail("Should have thrown Exception as setting should not be registered if Feature Flag is Disabled"); | ||
| } catch (SettingsException ex) { | ||
| assertEquals( | ||
| "unknown setting [" | ||
| + IndexModule.INDEX_STORE_LOCALITY_SETTING.getKey() | ||
| + "] please check that any required plugins are installed, or check the " | ||
| + "breaking changes documentation for removed settings", | ||
| ex.getMessage() | ||
| ); | ||
| } | ||
| } | ||
|
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| public void testWritableWarmBasic() throws Exception { | ||
| InternalTestCluster internalTestCluster = internalCluster(); | ||
| internalTestCluster.startClusterManagerOnlyNode(); | ||
| internalTestCluster.startDataOnlyNode(); | ||
| Settings settings = Settings.builder() | ||
| .put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, 1) | ||
| .put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, 0) | ||
| .put(IndexModule.INDEX_STORE_LOCALITY_SETTING.getKey(), IndexModule.DataLocalityType.PARTIAL.name()) | ||
| .build(); | ||
| assertAcked(client().admin().indices().prepareCreate(INDEX_NAME).setSettings(settings).get()); | ||
|
|
||
| // Verify from the cluster settings if the data locality is partial | ||
| GetIndexResponse getIndexResponse = client().admin() | ||
| .indices() | ||
| .getIndex(new GetIndexRequest().indices(INDEX_NAME).includeDefaults(true)) | ||
| .get(); | ||
| Settings indexSettings = getIndexResponse.settings().get(INDEX_NAME); | ||
| assertEquals(IndexModule.DataLocalityType.PARTIAL.name(), indexSettings.get(IndexModule.INDEX_STORE_LOCALITY_SETTING.getKey())); | ||
|
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||
| // Ingesting some docs | ||
| indexBulk(INDEX_NAME, NUM_DOCS_IN_BULK); | ||
| flushAndRefresh(INDEX_NAME); | ||
|
|
||
| // ensuring cluster is green after performing force-merge | ||
| ensureGreen(); | ||
|
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| SearchResponse searchResponse = client().prepareSearch(INDEX_NAME).setQuery(QueryBuilders.matchAllQuery()).get(); | ||
| // Asserting that search returns same number of docs as ingested | ||
| assertHitCount(searchResponse, NUM_DOCS_IN_BULK); | ||
|
|
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| // Ingesting docs again before force merge | ||
| indexBulk(INDEX_NAME, NUM_DOCS_IN_BULK); | ||
| flushAndRefresh(INDEX_NAME); | ||
|
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| FileCache fileCache = internalTestCluster.getDataNodeInstance(Node.class).fileCache(); | ||
| IndexShard shard = internalTestCluster.getDataNodeInstance(IndicesService.class) | ||
| .indexService(resolveIndex(INDEX_NAME)) | ||
| .getShardOrNull(0); | ||
| Directory directory = (((FilterDirectory) (((FilterDirectory) (shard.store().directory())).getDelegate())).getDelegate()); | ||
|
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| // Force merging the index | ||
| Set<String> filesBeforeMerge = new HashSet<>(Arrays.asList(directory.listAll())); | ||
| client().admin().indices().prepareForceMerge(INDEX_NAME).setMaxNumSegments(1).get(); | ||
| flushAndRefresh(INDEX_NAME); | ||
| Set<String> filesAfterMerge = new HashSet<>(Arrays.asList(directory.listAll())); | ||
|
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||
| Set<String> filesFromPreviousGenStillPresent = filesBeforeMerge.stream() | ||
| .filter(filesAfterMerge::contains) | ||
| .filter(file -> !FileTypeUtils.isLockFile(file)) | ||
| .filter(file -> !FileTypeUtils.isSegmentsFile(file)) | ||
| .collect(Collectors.toUnmodifiableSet()); | ||
|
|
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| // Asserting that after merge all the files from previous gen are no more part of the directory | ||
| assertTrue(filesFromPreviousGenStillPresent.isEmpty()); | ||
|
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| // Asserting that files from previous gen are not present in File Cache as well | ||
| filesBeforeMerge.stream() | ||
| .filter(file -> !FileTypeUtils.isLockFile(file)) | ||
| .filter(file -> !FileTypeUtils.isSegmentsFile(file)) | ||
| .forEach(file -> assertNull(fileCache.get(((CompositeDirectory) directory).getFilePath(file)))); | ||
|
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| // Deleting the index (so that ref count drops to zero for all the files) and then pruning the cache to clear it to avoid any file | ||
| // leaks | ||
| assertAcked(client().admin().indices().delete(new DeleteIndexRequest(INDEX_NAME)).get()); | ||
| fileCache.prune(); | ||
| } | ||
| } |
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