| /** |
| * 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 |
| * |
| * 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.hadoop.hbase.wal; |
| |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| /** |
| * Used for {@link BoundedRecoveredEditsOutputSink}. The core part of limiting opening writers is it |
| * doesn't return chunk only if the heap size is over maxHeapUsage. Thus it doesn't need to create |
| * a writer for each region during splitting. The returned {@link EntryBuffers.RegionEntryBuffer} |
| * will be write to recovered edits file and close the writer immediately. |
| * See {@link BoundedRecoveredEditsOutputSink#append(EntryBuffers.RegionEntryBuffer)} for more |
| * details. |
| */ |
| @InterfaceAudience.Private |
| public class BoundedEntryBuffers extends EntryBuffers { |
| |
| public BoundedEntryBuffers(WALSplitter.PipelineController controller, long maxHeapUsage) { |
| super(controller, maxHeapUsage); |
| } |
| |
| @Override |
| synchronized RegionEntryBuffer getChunkToWrite() { |
| if (totalBuffered < maxHeapUsage) { |
| return null; |
| } |
| return super.getChunkToWrite(); |
| } |
| } |