org.apache.lucene.replicator.nrt.ReplicaDeleterManager Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of server Show documentation
Show all versions of server Show documentation
GRPC lucene server using near-real-time replication
/*
* Copyright 2022 Yelp Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.lucene.replicator.nrt;
import java.io.IOException;
import java.util.Collection;
import java.util.HashSet;
import org.apache.lucene.index.SegmentInfos;
public class ReplicaDeleterManager {
private final ReplicaNode replicaNode;
public ReplicaDeleterManager(ReplicaNode replicaNode) {
this.replicaNode = replicaNode;
}
/*
* This method deletes the files in last committed files which are no longer used.
* Unfortunately we cannot modify the last committed files list in ReplicaNode
*/
public void decReplicaInitialCommitFiles() throws IOException {
synchronized (replicaNode.commitLock) {
synchronized (replicaNode) {
Collection removableFiles = new HashSet<>();
String segmentsFileName =
SegmentInfos.getLastCommitSegmentsFileName(replicaNode.getDirectory());
if (segmentsFileName != null) {
Collection indexFiles =
SegmentInfos.readCommit(replicaNode.getDirectory(), segmentsFileName).files(false);
removableFiles.addAll(indexFiles);
removableFiles.add(segmentsFileName);
replicaNode.deleter.decRef(removableFiles);
}
}
}
}
}