Apache9 commented on a change in pull request #3751: URL: https://github.com/apache/hbase/pull/3751#discussion_r733275891
########## File path: hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/FileBasedStoreFileCleaner.java ########## @@ -0,0 +1,200 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 + * <p> + * http://www.apache.org/licenses/LICENSE-2.0 + * <p> + * 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.hadoop.hbase.regionserver; + +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.fs.FileStatus; +import org.apache.hadoop.fs.Path; +import org.apache.hadoop.hbase.ScheduledChore; +import org.apache.hadoop.hbase.Stoppable; +import org.apache.hadoop.hbase.io.HFileLink; +import org.apache.hadoop.hbase.util.EnvironmentEdgeManager; +import org.apache.hadoop.ipc.RemoteException; +import org.apache.yetus.audience.InterfaceAudience; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import java.io.IOException; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.concurrent.atomic.AtomicLong; + +/** + * This Chore, every time it runs, will clear the unsused HFiles in the data + * folder. + */ [email protected] public class FileBasedStoreFileCleaner extends ScheduledChore { Review comment: Sounds reasonable. So it will be better to just let the chore to iterator over all the regions and stores to see if they need clean up, so we do not need to maintain the list of stores which needs to clean up(this would be a pain I suppose, as you need to hook up region open and close). So I think we could expose something like requireWritingToTmpFirst in the StoreEngine interface(we do not expose SFT to upper layer in HRegion and HStore), so you can implement this PR easier. WDYT? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
