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[Backport 2.x][Remote Routing Table] Add write flow for remote routin…
…g table (#13870) (#14160) * [Remote Routing Table] Add write flow for remote routing table (#13870) * Introduce RemoteRoutingTableService for shard routing table management Signed-off-by: Himshikha Gupta <[email protected]> Co-authored-by: Bukhtawar Khan <[email protected]> Co-authored-by: Arpit Bandejiya <[email protected]>
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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.cluster.routing.remote; | ||
|
|
||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
| import org.apache.lucene.store.IndexInput; | ||
| import org.opensearch.action.LatchedActionListener; | ||
| import org.opensearch.cluster.ClusterState; | ||
| import org.opensearch.cluster.DiffableUtils; | ||
| import org.opensearch.cluster.routing.IndexRoutingTable; | ||
| import org.opensearch.cluster.routing.RoutingTable; | ||
| import org.opensearch.common.CheckedRunnable; | ||
| import org.opensearch.common.blobstore.AsyncMultiStreamBlobContainer; | ||
| import org.opensearch.common.blobstore.BlobContainer; | ||
| import org.opensearch.common.blobstore.BlobPath; | ||
| import org.opensearch.common.blobstore.stream.write.WritePriority; | ||
| import org.opensearch.common.blobstore.transfer.RemoteTransferContainer; | ||
| import org.opensearch.common.blobstore.transfer.stream.OffsetRangeIndexInputStream; | ||
| import org.opensearch.common.io.stream.BytesStreamOutput; | ||
| import org.opensearch.common.lifecycle.AbstractLifecycleComponent; | ||
| import org.opensearch.common.lucene.store.ByteArrayIndexInput; | ||
| import org.opensearch.common.settings.ClusterSettings; | ||
| import org.opensearch.common.settings.Setting; | ||
| import org.opensearch.common.settings.Settings; | ||
| import org.opensearch.common.util.io.IOUtils; | ||
| import org.opensearch.core.action.ActionListener; | ||
| import org.opensearch.core.common.bytes.BytesReference; | ||
| import org.opensearch.gateway.remote.ClusterMetadataManifest; | ||
| import org.opensearch.gateway.remote.RemoteClusterStateService; | ||
| import org.opensearch.gateway.remote.routingtable.RemoteIndexRoutingTable; | ||
| import org.opensearch.index.remote.RemoteStoreEnums; | ||
| import org.opensearch.index.remote.RemoteStorePathStrategy; | ||
| import org.opensearch.index.remote.RemoteStoreUtils; | ||
| import org.opensearch.node.Node; | ||
| import org.opensearch.node.remotestore.RemoteStoreNodeAttribute; | ||
| import org.opensearch.repositories.RepositoriesService; | ||
| import org.opensearch.repositories.Repository; | ||
| import org.opensearch.repositories.blobstore.BlobStoreRepository; | ||
|
|
||
| import java.io.IOException; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.function.Function; | ||
| import java.util.function.Supplier; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| import static org.opensearch.node.remotestore.RemoteStoreNodeAttribute.isRemoteRoutingTableEnabled; | ||
|
|
||
| /** | ||
| * A Service which provides APIs to upload and download routing table from remote store. | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public class InternalRemoteRoutingTableService extends AbstractLifecycleComponent implements RemoteRoutingTableService { | ||
|
|
||
| /** | ||
| * This setting is used to set the remote routing table store blob store path type strategy. | ||
| */ | ||
| public static final Setting<RemoteStoreEnums.PathType> REMOTE_ROUTING_TABLE_PATH_TYPE_SETTING = new Setting<>( | ||
| "cluster.remote_store.routing_table.path_type", | ||
| RemoteStoreEnums.PathType.HASHED_PREFIX.toString(), | ||
| RemoteStoreEnums.PathType::parseString, | ||
| Setting.Property.NodeScope, | ||
| Setting.Property.Dynamic | ||
| ); | ||
|
|
||
| /** | ||
| * This setting is used to set the remote routing table store blob store path hash algorithm strategy. | ||
| * This setting will come to effect if the {@link #REMOTE_ROUTING_TABLE_PATH_TYPE_SETTING} | ||
| * is either {@code HASHED_PREFIX} or {@code HASHED_INFIX}. | ||
| */ | ||
| public static final Setting<RemoteStoreEnums.PathHashAlgorithm> REMOTE_ROUTING_TABLE_PATH_HASH_ALGO_SETTING = new Setting<>( | ||
| "cluster.remote_store.routing_table.path_hash_algo", | ||
| RemoteStoreEnums.PathHashAlgorithm.FNV_1A_BASE64.toString(), | ||
| RemoteStoreEnums.PathHashAlgorithm::parseString, | ||
| Setting.Property.NodeScope, | ||
| Setting.Property.Dynamic | ||
| ); | ||
|
|
||
| public static final String INDEX_ROUTING_PATH_TOKEN = "index-routing"; | ||
| public static final String INDEX_ROUTING_FILE_PREFIX = "index_routing"; | ||
| public static final String DELIMITER = "__"; | ||
| public static final String INDEX_ROUTING_METADATA_PREFIX = "indexRouting--"; | ||
|
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| private static final Logger logger = LogManager.getLogger(InternalRemoteRoutingTableService.class); | ||
| private final Settings settings; | ||
| private final Supplier<RepositoriesService> repositoriesService; | ||
| private BlobStoreRepository blobStoreRepository; | ||
| private RemoteStoreEnums.PathType pathType; | ||
| private RemoteStoreEnums.PathHashAlgorithm pathHashAlgo; | ||
|
|
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| public InternalRemoteRoutingTableService( | ||
| Supplier<RepositoriesService> repositoriesService, | ||
| Settings settings, | ||
| ClusterSettings clusterSettings | ||
| ) { | ||
| assert isRemoteRoutingTableEnabled(settings) : "Remote routing table is not enabled"; | ||
| this.repositoriesService = repositoriesService; | ||
| this.settings = settings; | ||
| this.pathType = clusterSettings.get(REMOTE_ROUTING_TABLE_PATH_TYPE_SETTING); | ||
| this.pathHashAlgo = clusterSettings.get(REMOTE_ROUTING_TABLE_PATH_HASH_ALGO_SETTING); | ||
| clusterSettings.addSettingsUpdateConsumer(REMOTE_ROUTING_TABLE_PATH_TYPE_SETTING, this::setPathTypeSetting); | ||
| clusterSettings.addSettingsUpdateConsumer(REMOTE_ROUTING_TABLE_PATH_HASH_ALGO_SETTING, this::setPathHashAlgoSetting); | ||
| } | ||
|
|
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| private void setPathTypeSetting(RemoteStoreEnums.PathType pathType) { | ||
| this.pathType = pathType; | ||
| } | ||
|
|
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| private void setPathHashAlgoSetting(RemoteStoreEnums.PathHashAlgorithm pathHashAlgo) { | ||
| this.pathHashAlgo = pathHashAlgo; | ||
| } | ||
|
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| public List<IndexRoutingTable> getIndicesRouting(RoutingTable routingTable) { | ||
| return new ArrayList<>(routingTable.indicesRouting().values()); | ||
| } | ||
|
|
||
| /** | ||
| * Returns diff between the two routing tables, which includes upserts and deletes. | ||
| * @param before previous routing table | ||
| * @param after current routing table | ||
| * @return diff of the previous and current routing table | ||
| */ | ||
| public DiffableUtils.MapDiff<String, IndexRoutingTable, Map<String, IndexRoutingTable>> getIndicesRoutingMapDiff( | ||
| RoutingTable before, | ||
| RoutingTable after | ||
| ) { | ||
| return DiffableUtils.diff( | ||
| before.getIndicesRouting(), | ||
| after.getIndicesRouting(), | ||
| DiffableUtils.getStringKeySerializer(), | ||
| CUSTOM_ROUTING_TABLE_VALUE_SERIALIZER | ||
| ); | ||
| } | ||
|
|
||
| /** | ||
| * Create async action for writing one {@code IndexRoutingTable} to remote store | ||
| * @param clusterState current cluster state | ||
| * @param indexRouting indexRoutingTable to write to remote store | ||
| * @param latchedActionListener listener for handling async action response | ||
| * @param clusterBasePath base path for remote file | ||
| * @return returns runnable async action | ||
| */ | ||
| public CheckedRunnable<IOException> getIndexRoutingAsyncAction( | ||
| ClusterState clusterState, | ||
| IndexRoutingTable indexRouting, | ||
| LatchedActionListener<ClusterMetadataManifest.UploadedMetadata> latchedActionListener, | ||
| BlobPath clusterBasePath | ||
| ) { | ||
|
|
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| BlobPath indexRoutingPath = clusterBasePath.add(INDEX_ROUTING_PATH_TOKEN); | ||
| BlobPath path = pathType.path( | ||
| RemoteStorePathStrategy.BasePathInput.builder().basePath(indexRoutingPath).indexUUID(indexRouting.getIndex().getUUID()).build(), | ||
| pathHashAlgo | ||
| ); | ||
| final BlobContainer blobContainer = blobStoreRepository.blobStore().blobContainer(path); | ||
|
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| final String fileName = getIndexRoutingFileName(clusterState.term(), clusterState.version()); | ||
|
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| ActionListener<Void> completionListener = ActionListener.wrap( | ||
| resp -> latchedActionListener.onResponse( | ||
| new ClusterMetadataManifest.UploadedIndexMetadata( | ||
| indexRouting.getIndex().getName(), | ||
| indexRouting.getIndex().getUUID(), | ||
| path.buildAsString() + fileName, | ||
| INDEX_ROUTING_METADATA_PREFIX | ||
| ) | ||
| ), | ||
| ex -> latchedActionListener.onFailure( | ||
| new RemoteClusterStateService.RemoteStateTransferException( | ||
| "Exception in writing index to remote store: " + indexRouting.getIndex().toString(), | ||
| ex | ||
| ) | ||
| ) | ||
| ); | ||
|
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| return () -> uploadIndex(indexRouting, fileName, blobContainer, completionListener); | ||
| } | ||
|
|
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| /** | ||
| * Combines IndicesRoutingMetadata from previous manifest and current uploaded indices, removes deleted indices. | ||
| * @param previousManifest previous manifest, used to get all existing indices routing paths | ||
| * @param indicesRoutingUploaded current uploaded indices routings | ||
| * @param indicesRoutingToDelete indices to delete | ||
| * @return combined list of metadata | ||
| */ | ||
| public List<ClusterMetadataManifest.UploadedIndexMetadata> getAllUploadedIndicesRouting( | ||
| ClusterMetadataManifest previousManifest, | ||
| List<ClusterMetadataManifest.UploadedIndexMetadata> indicesRoutingUploaded, | ||
| List<String> indicesRoutingToDelete | ||
| ) { | ||
| final Map<String, ClusterMetadataManifest.UploadedIndexMetadata> allUploadedIndicesRouting = previousManifest.getIndicesRouting() | ||
| .stream() | ||
| .collect(Collectors.toMap(ClusterMetadataManifest.UploadedIndexMetadata::getIndexName, Function.identity())); | ||
|
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| indicesRoutingUploaded.forEach( | ||
| uploadedIndexRouting -> allUploadedIndicesRouting.put(uploadedIndexRouting.getIndexName(), uploadedIndexRouting) | ||
| ); | ||
| indicesRoutingToDelete.forEach(allUploadedIndicesRouting::remove); | ||
|
|
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| return new ArrayList<>(allUploadedIndicesRouting.values()); | ||
| } | ||
|
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| private void uploadIndex( | ||
| IndexRoutingTable indexRouting, | ||
| String fileName, | ||
| BlobContainer blobContainer, | ||
| ActionListener<Void> completionListener | ||
| ) { | ||
| RemoteIndexRoutingTable indexRoutingInput = new RemoteIndexRoutingTable(indexRouting); | ||
| BytesReference bytesInput = null; | ||
| try (BytesStreamOutput streamOutput = new BytesStreamOutput()) { | ||
| indexRoutingInput.writeTo(streamOutput); | ||
| bytesInput = streamOutput.bytes(); | ||
| } catch (IOException e) { | ||
| logger.error("Failed to serialize IndexRoutingTable for [{}]: [{}]", indexRouting, e); | ||
| completionListener.onFailure(e); | ||
| return; | ||
| } | ||
|
|
||
| if (blobContainer instanceof AsyncMultiStreamBlobContainer == false) { | ||
| try { | ||
| blobContainer.writeBlob(fileName, bytesInput.streamInput(), bytesInput.length(), true); | ||
| completionListener.onResponse(null); | ||
| } catch (IOException e) { | ||
| logger.error("Failed to write IndexRoutingTable to remote store for indexRouting [{}]: [{}]", indexRouting, e); | ||
| completionListener.onFailure(e); | ||
| } | ||
| return; | ||
| } | ||
|
|
||
| try (IndexInput input = new ByteArrayIndexInput("indexrouting", BytesReference.toBytes(bytesInput))) { | ||
| try ( | ||
| RemoteTransferContainer remoteTransferContainer = new RemoteTransferContainer( | ||
| fileName, | ||
| fileName, | ||
| input.length(), | ||
| true, | ||
| WritePriority.URGENT, | ||
| (size, position) -> new OffsetRangeIndexInputStream(input, size, position), | ||
| null, | ||
| false | ||
| ) | ||
| ) { | ||
| ((AsyncMultiStreamBlobContainer) blobContainer).asyncBlobUpload( | ||
| remoteTransferContainer.createWriteContext(), | ||
| completionListener | ||
| ); | ||
| } catch (IOException e) { | ||
| logger.error("Failed to write IndexRoutingTable to remote store for indexRouting [{}]: [{}]", indexRouting, e); | ||
| completionListener.onFailure(e); | ||
| } | ||
| } catch (IOException e) { | ||
| logger.error( | ||
| "Failed to create transfer object for IndexRoutingTable for remote store upload for indexRouting [{}]: [{}]", | ||
| indexRouting, | ||
| e | ||
| ); | ||
| completionListener.onFailure(e); | ||
| } | ||
| } | ||
|
|
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| private String getIndexRoutingFileName(long term, long version) { | ||
| return String.join( | ||
| DELIMITER, | ||
| INDEX_ROUTING_FILE_PREFIX, | ||
| RemoteStoreUtils.invertLong(term), | ||
| RemoteStoreUtils.invertLong(version), | ||
| RemoteStoreUtils.invertLong(System.currentTimeMillis()) | ||
| ); | ||
| } | ||
|
|
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| @Override | ||
| protected void doClose() throws IOException { | ||
| if (blobStoreRepository != null) { | ||
| IOUtils.close(blobStoreRepository); | ||
| } | ||
| } | ||
|
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| @Override | ||
| protected void doStart() { | ||
| assert isRemoteRoutingTableEnabled(settings) == true : "Remote routing table is not enabled"; | ||
| final String remoteStoreRepo = settings.get( | ||
| Node.NODE_ATTRIBUTES.getKey() + RemoteStoreNodeAttribute.REMOTE_STORE_ROUTING_TABLE_REPOSITORY_NAME_ATTRIBUTE_KEY | ||
| ); | ||
| assert remoteStoreRepo != null : "Remote routing table repository is not configured"; | ||
| final Repository repository = repositoriesService.get().repository(remoteStoreRepo); | ||
| assert repository instanceof BlobStoreRepository : "Repository should be instance of BlobStoreRepository"; | ||
| blobStoreRepository = (BlobStoreRepository) repository; | ||
| } | ||
|
|
||
| @Override | ||
| protected void doStop() {} | ||
|
|
||
| } |
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