/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.regionserver;
/**
* This interface will be implemented to allow region server to push table metrics into
* MetricsRegionAggregateSource that will in turn push data to the Hadoop metrics system.
*/
public interface MetricsTableSource extends Comparable<MetricsTableSource> {
String READ_REQUEST_COUNT = "readRequestCount";
String READ_REQUEST_COUNT_DESC = "Number fo read requests";
String WRITE_REQUEST_COUNT = "writeRequestCount";
String WRITE_REQUEST_COUNT_DESC = "Number fo write requests";
String TOTAL_REQUEST_COUNT = "totalRequestCount";
String TOTAL_REQUEST_COUNT_DESC = "Number fo total requests";
String MEMSTORE_SIZE = "memstoreSize";
String MEMSTORE_SIZE_DESC = "The size of memory stores";
String STORE_FILE_SIZE = "storeFileSize";
String STORE_FILE_SIZE_DESC = "The size of store files size";
String TABLE_SIZE = "tableSize";
String TABLE_SIZE_DESC = "Total size of the table in the region server";
String getTableName();
/**
* Close the table's metrics as all the region are closing.
*/
void close();
/**
* Get the aggregate source to which this reports.
*/
MetricsTableAggregateSource getAggregateSource();
}