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.ipc;
019
020import org.apache.hadoop.hbase.util.Pair;
021import org.apache.yetus.audience.InterfaceAudience;
022
023@InterfaceAudience.Private
024public interface MetricsHBaseServerWrapper {
025  long getTotalQueueSize();
026
027  int getGeneralQueueLength();
028
029  int getReplicationQueueLength();
030
031  int getBulkLoadQueueLength();
032
033  int getPriorityQueueLength();
034
035  int getMetaPriorityQueueLength();
036
037  int getNumOpenConnections();
038
039  int getActiveRpcHandlerCount();
040
041  int getActiveGeneralRpcHandlerCount();
042
043  int getActivePriorityRpcHandlerCount();
044
045  int getActiveReplicationRpcHandlerCount();
046
047  int getActiveBulkLoadRpcHandlerCount();
048
049  int getActiveMetaPriorityRpcHandlerCount();
050
051  long getNumGeneralCallsDropped();
052
053  long getNumLifoModeSwitches();
054
055  int getWriteQueueLength();
056
057  int getReadQueueLength();
058
059  int getScanQueueLength();
060
061  int getActiveWriteRpcHandlerCount();
062
063  int getActiveReadRpcHandlerCount();
064
065  int getActiveScanRpcHandlerCount();
066
067  long getNettyDmUsage();
068
069  /**
070   * These two metrics are calculated together, so we want to return them in one call
071   * @return pair containing total (first) and max (second) pending outbound bytes.
072   */
073  Pair<Long, Long> getTotalAndMaxNettyOutboundBytes();
074}