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132 changes: 132 additions & 0 deletions
132
server/src/main/java/org/opensearch/action/search/PitService.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.action.search; | ||
|
|
||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
| import org.apache.logging.log4j.message.ParameterizedMessage; | ||
| import org.opensearch.action.ActionListener; | ||
| import org.opensearch.action.StepListener; | ||
| import org.opensearch.action.support.GroupedActionListener; | ||
| import org.opensearch.cluster.node.DiscoveryNode; | ||
| import org.opensearch.cluster.service.ClusterService; | ||
| import org.opensearch.common.Strings; | ||
| import org.opensearch.common.inject.Inject; | ||
| import org.opensearch.transport.Transport; | ||
|
|
||
| import java.util.ArrayList; | ||
| import java.util.Collection; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Set; | ||
| import java.util.function.BiFunction; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| /** | ||
| * Service class for PIT reusable functions | ||
| */ | ||
| public class PitService { | ||
|
|
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| private static final Logger logger = LogManager.getLogger(PitService.class); | ||
|
|
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| private final ClusterService clusterService; | ||
| private final SearchTransportService searchTransportService; | ||
|
|
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| @Inject | ||
| public PitService(ClusterService clusterService, SearchTransportService searchTransportService) { | ||
| this.clusterService = clusterService; | ||
| this.searchTransportService = searchTransportService; | ||
| } | ||
|
|
||
| /** | ||
| * Delete list of pit contexts. Returns the details of success of operation per PIT ID. | ||
| */ | ||
| public void deletePitContexts( | ||
| Map<String, List<PitSearchContextIdForNode>> nodeToContextsMap, | ||
| ActionListener<DeletePitResponse> listener | ||
| ) { | ||
| final Set<String> clusters = nodeToContextsMap.values() | ||
| .stream() | ||
| .flatMap(Collection::stream) | ||
| .filter(ctx -> Strings.isEmpty(ctx.getSearchContextIdForNode().getClusterAlias()) == false) | ||
| .map(c -> c.getSearchContextIdForNode().getClusterAlias()) | ||
| .collect(Collectors.toSet()); | ||
| StepListener<BiFunction<String, String, DiscoveryNode>> lookupListener = SearchUtils.getConnectionLookupListener( | ||
| searchTransportService.getRemoteClusterService(), | ||
| clusterService.state(), | ||
| clusters | ||
| ); | ||
| lookupListener.whenComplete(nodeLookup -> { | ||
| final GroupedActionListener<DeletePitResponse> groupedListener = getDeletePitGroupedListener( | ||
| listener, | ||
| nodeToContextsMap.size() | ||
| ); | ||
|
|
||
| for (Map.Entry<String, List<PitSearchContextIdForNode>> entry : nodeToContextsMap.entrySet()) { | ||
| String clusterAlias = entry.getValue().get(0).getSearchContextIdForNode().getClusterAlias(); | ||
| final DiscoveryNode node = nodeLookup.apply(clusterAlias, entry.getValue().get(0).getSearchContextIdForNode().getNode()); | ||
| if (node == null) { | ||
| logger.error( | ||
| () -> new ParameterizedMessage("node [{}] not found", entry.getValue().get(0).getSearchContextIdForNode().getNode()) | ||
| ); | ||
| List<DeletePitInfo> deletePitInfos = new ArrayList<>(); | ||
| for (PitSearchContextIdForNode pitSearchContextIdForNode : entry.getValue()) { | ||
| deletePitInfos.add(new DeletePitInfo(false, pitSearchContextIdForNode.getPitId())); | ||
| } | ||
| groupedListener.onResponse(new DeletePitResponse(deletePitInfos)); | ||
| } else { | ||
| try { | ||
| final Transport.Connection connection = searchTransportService.getConnection(clusterAlias, node); | ||
| searchTransportService.sendFreePITContexts(connection, entry.getValue(), groupedListener); | ||
| } catch (Exception e) { | ||
| logger.error(() -> new ParameterizedMessage("Delete PITs failed on node [{}]", node.getName()), e); | ||
| List<DeletePitInfo> deletePitInfos = new ArrayList<>(); | ||
| for (PitSearchContextIdForNode pitSearchContextIdForNode : entry.getValue()) { | ||
| deletePitInfos.add(new DeletePitInfo(false, pitSearchContextIdForNode.getPitId())); | ||
| } | ||
| groupedListener.onResponse(new DeletePitResponse(deletePitInfos)); | ||
| } | ||
| } | ||
| } | ||
| }, listener::onFailure); | ||
| } | ||
|
|
||
| public GroupedActionListener<DeletePitResponse> getDeletePitGroupedListener(ActionListener<DeletePitResponse> listener, int size) { | ||
| return new GroupedActionListener<>(new ActionListener<>() { | ||
| @Override | ||
| public void onResponse(final Collection<DeletePitResponse> responses) { | ||
| Map<String, Boolean> pitIdToSucceededMap = new HashMap<>(); | ||
| for (DeletePitResponse response : responses) { | ||
| for (DeletePitInfo deletePitInfo : response.getDeletePitResults()) { | ||
| if (!pitIdToSucceededMap.containsKey(deletePitInfo.getPitId())) { | ||
| pitIdToSucceededMap.put(deletePitInfo.getPitId(), deletePitInfo.isSuccessful()); | ||
| } | ||
| if (!deletePitInfo.isSuccessful()) { | ||
| logger.debug(() -> new ParameterizedMessage("Deleting PIT with ID {} failed ", deletePitInfo.getPitId())); | ||
| pitIdToSucceededMap.put(deletePitInfo.getPitId(), deletePitInfo.isSuccessful()); | ||
| } | ||
| } | ||
| } | ||
| List<DeletePitInfo> deletePitResults = new ArrayList<>(); | ||
| for (Map.Entry<String, Boolean> entry : pitIdToSucceededMap.entrySet()) { | ||
| deletePitResults.add(new DeletePitInfo(entry.getValue(), entry.getKey())); | ||
| } | ||
| DeletePitResponse deletePitResponse = new DeletePitResponse(deletePitResults); | ||
| listener.onResponse(deletePitResponse); | ||
| } | ||
|
|
||
| @Override | ||
| public void onFailure(final Exception e) { | ||
| logger.error("Delete PITs failed", e); | ||
| listener.onFailure(e); | ||
| } | ||
| }, size); | ||
| } | ||
| } |
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