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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 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;
Class responsible for parsing the command line and starting the RegionServer.
public class HRegionServerCommandLine extends ServerCommandLine {
  private static final Log LOG = LogFactory.getLog(HRegionServerCommandLine.class);
  private final Class<? extends HRegionServerregionServerClass;
  private static final String USAGE =
    "Usage: HRegionServer [-D conf.param=value] start";
  public HRegionServerCommandLine(Class<? extends HRegionServerclazz) {
    this. = clazz;
  protected String getUsage() {
    return ;
  private int start() throws Exception {
    Configuration conf = getConf();
    try {
      // If 'local', don't start a region server here. Defer to
      // LocalHBaseCluster. It manages 'local' clusters.
      if (LocalHBaseCluster.isLocal(conf)) {
        .warn("Not starting a distinct region server because "
            + . + " is false");
      } else {
        HRegionServer hrs = HRegionServer.constructRegionServer(conf);
        Thread rsThread = HRegionServer.startRegionServer(hrs);
        if (hrs.isAborted()) {
          throw new RuntimeException("HRegionServer Aborted");
    } catch (Throwable t) {
      .error("Region server exiting"t);
      return 1;
    return 0;
  public int run(String args[]) throws Exception {
    if (args.length != 1) {
      return 1;
    String cmd = args[0];
    if ("start".equals(cmd)) {
      return start();
    } else if ("stop".equals(cmd)) {
        "To shutdown the regionserver run " +
        "bin/ stop regionserver or send a kill signal to" +
        "the regionserver pid");
      return 1;
    } else {
      usage("Unknown command: " + args[0]);
      return 1;
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