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.replication.regionserver;
019
020import org.apache.hadoop.hbase.executor.EventType;
021import org.apache.hadoop.hbase.procedure2.RSProcedureCallable;
022import org.apache.hadoop.hbase.regionserver.HRegionServer;
023import org.apache.yetus.audience.InterfaceAudience;
024
025import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException;
026import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleRemoteStateData;
027
028/**
029 * The callable executed at RS side to switch rpc throttle state. <br/>
030 */
031@InterfaceAudience.Private
032public class SwitchRpcThrottleRemoteCallable implements RSProcedureCallable {
033  private HRegionServer rs;
034  private boolean rpcThrottleEnabled;
035  private Exception initError;
036
037  @Override
038  public Void call() throws Exception {
039    if (initError != null) {
040      throw initError;
041    }
042    rs.getRegionServerRpcQuotaManager().switchRpcThrottle(rpcThrottleEnabled);
043    return null;
044  }
045
046  @Override
047  public void init(byte[] parameter, HRegionServer rs) {
048    this.rs = rs;
049    try {
050      SwitchRpcThrottleRemoteStateData param =
051          SwitchRpcThrottleRemoteStateData.parseFrom(parameter);
052      rpcThrottleEnabled = param.getRpcThrottleEnabled();
053    } catch (InvalidProtocolBufferException e) {
054      initError = e;
055    }
056  }
057
058  @Override
059  public EventType getEventType() {
060    return EventType.M_RS_SWITCH_RPC_THROTTLE;
061  }
062}