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.thrift;
019
020import java.util.Locale;
021import org.apache.hadoop.conf.Configuration;
022import org.apache.yetus.audience.InterfaceAudience;
023import org.slf4j.Logger;
024import org.slf4j.LoggerFactory;
025
026import org.apache.hbase.thirdparty.org.apache.thrift.server.TThreadedSelectorServer;
027import org.apache.hbase.thirdparty.org.apache.thrift.transport.TNonblockingServerTransport;
028
029/**
030 * A TThreadedSelectorServer.Args that reads hadoop configuration
031 */
032@InterfaceAudience.Private
033public class HThreadedSelectorServerArgs extends TThreadedSelectorServer.Args {
034  private static final Logger LOG = LoggerFactory.getLogger(HThreadedSelectorServerArgs.class);
035
036  /**
037   * Number of selector threads for reading and writing socket
038   */
039  public static final String SELECTOR_THREADS_CONF_KEY = "hbase.thrift.selector.threads";
040
041  /**
042   * Number fo threads for processing the thrift calls
043   */
044  public static final String WORKER_THREADS_CONF_KEY = "hbase.thrift.worker.threads";
045
046  /**
047   * Time to wait for server to stop gracefully
048   */
049  public static final String STOP_TIMEOUT_CONF_KEY = "hbase.thrift.stop.timeout.seconds";
050
051  /**
052   * Maximum number of accepted elements per selector
053   */
054  public static final String ACCEPT_QUEUE_SIZE_PER_THREAD_CONF_KEY =
055    "hbase.thrift.accept.queue.size.per.selector";
056
057  /**
058   * The strategy for handling new accepted connections.
059   */
060  public static final String ACCEPT_POLICY_CONF_KEY = "hbase.thrift.accept.policy";
061
062  public HThreadedSelectorServerArgs(TNonblockingServerTransport transport, Configuration conf) {
063    super(transport);
064    readConf(conf);
065  }
066
067  private void readConf(Configuration conf) {
068    int selectorThreads = conf.getInt(SELECTOR_THREADS_CONF_KEY, getSelectorThreads());
069    int workerThreads = conf.getInt(WORKER_THREADS_CONF_KEY, getWorkerThreads());
070    int stopTimeoutVal = conf.getInt(STOP_TIMEOUT_CONF_KEY, getStopTimeoutVal());
071    int acceptQueueSizePerThread =
072      conf.getInt(ACCEPT_QUEUE_SIZE_PER_THREAD_CONF_KEY, getAcceptQueueSizePerThread());
073    AcceptPolicy acceptPolicy = AcceptPolicy.valueOf(
074      conf.get(ACCEPT_POLICY_CONF_KEY, getAcceptPolicy().toString()).toUpperCase(Locale.ROOT));
075
076    super.selectorThreads(selectorThreads).workerThreads(workerThreads)
077      .stopTimeoutVal(stopTimeoutVal).acceptQueueSizePerThread(acceptQueueSizePerThread)
078      .acceptPolicy(acceptPolicy);
079
080    LOG.info("Read configuration selectorThreads:" + selectorThreads + " workerThreads:"
081      + workerThreads + " stopTimeoutVal:" + stopTimeoutVal + "sec" + " acceptQueueSizePerThread:"
082      + acceptQueueSizePerThread + " acceptPolicy:" + acceptPolicy);
083  }
084}