/*
* Copyright 2011 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.lealone.hbase.engine;
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;
import org.lealone.hbase.server.HBasePgServer;
import org.lealone.hbase.server.HBaseTcpServer;
import org.lealone.hbase.transaction.TimestampService;
/**
*
* 在hbase-site.xml中配置hbase.regionserver.impl = org.lealone.hbase.engine.HBaseRegionServer
*
*/
public class HBaseRegionServer extends org.apache.hadoop.hbase.regionserver.HRegionServer {
private TimestampService timestampService;
public HBaseRegionServer(Configuration conf) throws IOException, InterruptedException {
super(conf);
String classes = conf.get(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY, null);
if (classes == null)
classes = RegionLocationCacheObserver.class.getName();
else
classes += "," + RegionLocationCacheObserver.class.getName();
conf.set(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY, classes);
}
public TimestampService getTimestampService() {
if (timestampService == null) {
synchronized (this) {
if (timestampService == null)
timestampService = new TimestampService(getServerName().getHostAndPort());
}
}
return timestampService;
}
@Override
public void run() {
HBaseTcpServer server = new HBaseTcpServer(this);
server.start();
HBasePgServer pgServer = null;
if (HBasePgServer.isPgServerEnabled(getConfiguration())) {
pgServer = new HBasePgServer(this);
pgServer.start();
}
try {
super.run();
} finally {
server.stop();
if (pgServer != null)
pgServer.stop();
}
}
}