1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to you under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.hadoop.hbase.regionserver; 18 19 import org.apache.hadoop.hbase.metrics.BaseSource; 20 21 /** 22 * A collection of exposed metrics for space quotas from an HBase RegionServer. 23 */ 24 public interface MetricsRegionServerQuotaSource extends BaseSource { 25 26 String METRICS_NAME = "Quotas"; 27 String METRICS_CONTEXT = "regionserver"; 28 String METRICS_DESCRIPTION = "Metrics about HBase RegionServer Quotas"; 29 String METRICS_JMX_CONTEXT = "RegionServer,sub=" + METRICS_NAME; 30 31 /** 32 * Updates the metric tracking how many tables this RegionServer has marked as in violation 33 * of their space quota. 34 */ 35 void updateNumTablesInSpaceQuotaViolation(long tablesInViolation); 36 37 /** 38 * Updates the metric tracking how many tables this RegionServer has received 39 * {@code SpaceQuotaSnapshot}s for. 40 * 41 * @param numSnapshots The number of {@code SpaceQuotaSnapshot}s received from the Master. 42 */ 43 void updateNumTableSpaceQuotaSnapshots(long numSnapshots); 44 45 /** 46 * Updates the metric tracking how much time was spent scanning the filesystem to compute 47 * the size of each region hosted by this RegionServer. 48 * 49 * @param time The execution time of the chore in milliseconds. 50 */ 51 void incrementSpaceQuotaFileSystemScannerChoreTime(long time); 52 53 /** 54 * Updates the metric tracking how much time was spent updating the RegionServer with the 55 * latest information on space quotas from the {@code hbase:quota} table. 56 * 57 * @param time The execution time of the chore in milliseconds. 58 */ 59 void incrementSpaceQuotaRefresherChoreTime(long time); 60 }