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.regionserver;
019
020import org.apache.hadoop.conf.Configuration;
021import org.apache.hadoop.hbase.Abortable;
022import org.apache.hadoop.hbase.HBaseInterfaceAudience;
023import org.apache.hadoop.hbase.HConstants;
024import org.apache.yetus.audience.InterfaceAudience;
025import org.apache.yetus.audience.InterfaceStability;
026import org.apache.hadoop.hbase.ipc.PriorityFunction;
027import org.apache.hadoop.hbase.ipc.RpcScheduler;
028import org.apache.hadoop.hbase.ipc.SimpleRpcScheduler;
029
030/** Constructs a {@link SimpleRpcScheduler}.
031 */
032@InterfaceAudience.LimitedPrivate({HBaseInterfaceAudience.COPROC, HBaseInterfaceAudience.PHOENIX})
033@InterfaceStability.Evolving
034public class SimpleRpcSchedulerFactory implements RpcSchedulerFactory {
035  @Override
036  @Deprecated
037  public RpcScheduler create(Configuration conf, PriorityFunction priority) {
038    return create(conf, priority, null);
039  }
040
041  @Override
042  public RpcScheduler create(Configuration conf, PriorityFunction priority, Abortable server) {
043    int handlerCount = conf.getInt(HConstants.REGION_SERVER_HANDLER_COUNT,
044        HConstants.DEFAULT_REGION_SERVER_HANDLER_COUNT);
045    return new SimpleRpcScheduler(
046      conf,
047      handlerCount,
048      conf.getInt(HConstants.REGION_SERVER_HIGH_PRIORITY_HANDLER_COUNT,
049        HConstants.DEFAULT_REGION_SERVER_HIGH_PRIORITY_HANDLER_COUNT),
050      conf.getInt(HConstants.REGION_SERVER_REPLICATION_HANDLER_COUNT,
051          HConstants.DEFAULT_REGION_SERVER_REPLICATION_HANDLER_COUNT),
052        conf.getInt(HConstants.MASTER_META_TRANSITION_HANDLER_COUNT,
053            HConstants.MASTER__META_TRANSITION_HANDLER_COUNT_DEFAULT),
054      priority,
055      server,
056      HConstants.QOS_THRESHOLD);
057  }
058}