sebawagner commented on a change in pull request #130: URL: https://github.com/apache/openmeetings/pull/130#discussion_r580678531
########## File path: openmeetings-web/src/main/java/org/apache/openmeetings/web/util/logging/TomcatGenericExports.java ########## @@ -0,0 +1,305 @@ +/* + * 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.openmeetings.web.util.logging; + +import io.prometheus.client.Collector; +import io.prometheus.client.CounterMetricFamily; +import io.prometheus.client.GaugeMetricFamily; +import org.apache.catalina.util.ServerInfo; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import javax.management.*; +import java.lang.management.ManagementFactory; +import java.util.*; + +/** + * Exports Tomcat metrics applicable to most most applications: + * + * - http session metrics - request processor metrics - thread pool metrics + * + * <p> + * Example usage: + * + * <pre> + * {@code + * new TomcatGenericExports(false).register(); + * } + * </pre> + * + * Example metrics being exported: + * + * <pre> + * tomcat_info{version="7.0.61.0",build="Apr 29 2015 14:58:03 UTC",} 1.0 + * tomcat_session_active_total{context="/foo",host="default",} 877.0 + * tomcat_session_rejected_total{context="/foo",host="default",} 0.0 + * tomcat_session_created_total{context="/foo",host="default",} 24428.0 + * tomcat_session_expired_total{context="/foo",host="default",} 23832.0 + * tomcat_session_alivetime_seconds_avg{context="/foo",host="default",} 633.0 + * tomcat_session_alivetime_seconds_max{context="/foo",host="default",} 9883.0 + * tomcat_requestprocessor_received_bytes{name="http-bio-0.0.0.0-8080",} 0.0 + * tomcat_requestprocessor_sent_bytes{name="http-bio-0.0.0.0-8080",} 5056098.0 + * tomcat_requestprocessor_time_seconds{name="http-bio-0.0.0.0-8080",} 127386.0 + * tomcat_requestprocessor_error_count{name="http-bio-0.0.0.0-8080",} 0.0 + * tomcat_requestprocessor_request_count{name="http-bio-0.0.0.0-8080",} 33709.0 + * tomcat_threads_total{pool="http-bio-0.0.0.0-8080",} 10.0 + * tomcat_threads_active_total{pool="http-bio-0.0.0.0-8080",} 2.0 + * tomcat_threads_active_max{pool="http-bio-0.0.0.0-8080",} 200.0 + * </pre> + */ + +public class TomcatGenericExports extends Collector { + + private static final Logger log = LoggerFactory.getLogger(TomcatGenericExports.class); + private String jmxDomain = "Catalina"; + + public TomcatGenericExports(boolean embedded) { + if (embedded) { + jmxDomain = "Tomcat"; + } + } + + private void addRequestProcessorMetrics(List<MetricFamilySamples> mfs) { + try { + final MBeanServer server = ManagementFactory.getPlatformMBeanServer(); + ObjectName filterName = new ObjectName(jmxDomain + ":type=GlobalRequestProcessor,name=*"); + Set<ObjectInstance> mBeans = server.queryMBeans(filterName, null); + + if (mBeans.size() > 0) { + List<String> labelNameList = Collections.singletonList("name"); Review comment: Done ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
