001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.regionserver; 019 020import java.io.IOException; 021import java.util.List; 022import java.util.stream.Collectors; 023import org.apache.hadoop.hbase.NotServingRegionException; 024import org.apache.hadoop.hbase.client.RegionInfo; 025import org.apache.hadoop.hbase.executor.EventType; 026import org.apache.hadoop.hbase.procedure2.BaseRSProcedureCallable; 027import org.apache.yetus.audience.InterfaceAudience; 028import org.slf4j.Logger; 029import org.slf4j.LoggerFactory; 030 031import org.apache.hbase.thirdparty.com.google.protobuf.ByteString; 032 033import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil; 034import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.FlushRegionParameter; 035 036@InterfaceAudience.Private 037public class FlushRegionCallable extends BaseRSProcedureCallable { 038 039 private static final Logger LOG = LoggerFactory.getLogger(FlushRegionCallable.class); 040 041 private RegionInfo regionInfo; 042 043 private List<byte[]> columnFamilies; 044 045 @Override 046 protected void doCall() throws Exception { 047 HRegion region = rs.getRegion(regionInfo.getEncodedName()); 048 if (region == null) { 049 throw new NotServingRegionException("region=" + regionInfo.getRegionNameAsString()); 050 } 051 LOG.debug("Starting region operation on {}", region); 052 region.startRegionOperation(); 053 try { 054 HRegion.FlushResult res; 055 if (columnFamilies == null) { 056 res = region.flush(true); 057 } else { 058 res = region.flushcache(columnFamilies, false, FlushLifeCycleTracker.DUMMY); 059 } 060 if (res.getResult() == HRegion.FlushResult.Result.CANNOT_FLUSH) { 061 throw new IOException("Unable to complete flush " + regionInfo); 062 } 063 } finally { 064 LOG.debug("Closing region operation on {}", region); 065 region.closeRegionOperation(); 066 } 067 } 068 069 @Override 070 protected void initParameter(byte[] parameter) throws Exception { 071 FlushRegionParameter param = FlushRegionParameter.parseFrom(parameter); 072 this.regionInfo = ProtobufUtil.toRegionInfo(param.getRegion()); 073 if (param.getColumnFamilyCount() > 0) { 074 this.columnFamilies = param.getColumnFamilyList().stream().filter(cf -> !cf.isEmpty()) 075 .map(ByteString::toByteArray).collect(Collectors.toList()); 076 } 077 } 078 079 @Override 080 public EventType getEventType() { 081 return EventType.RS_FLUSH_REGIONS; 082 } 083}