| /** |
| * Copyright 2007 The Apache Software Foundation |
| * |
| * 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.regionserver; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.hadoop.hbase.HBaseConfiguration; |
| import org.apache.hadoop.hbase.client.Put; |
| |
| /** |
| * A region server that will OOME. |
| * Everytime {@link #put(regionName, Put)} is called, we add |
| * keep around a reference to the batch. Use this class to test OOME extremes. |
| * Needs to be started manually as in |
| * <code>${HBASE_HOME}/bin/hbase ./bin/hbase org.apache.hadoop.hbase.OOMERegionServer start</code>. |
| */ |
| public class OOMERegionServer extends HRegionServer { |
| private List<Put> retainer = new ArrayList<Put>(); |
| |
| public OOMERegionServer(HBaseConfiguration conf) throws IOException, InterruptedException { |
| super(conf); |
| } |
| |
| public void put(byte [] regionName, Put put) |
| throws IOException { |
| super.put(regionName, put); |
| for (int i = 0; i < 30; i++) { |
| // Add the batch update 30 times to bring on the OOME faster. |
| this.retainer.add(put); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| new HRegionServerCommandLine(OOMERegionServer.class).doMain(args); |
| } |
| } |