xu1009 commented on a change in pull request #95: URL: https://github.com/apache/skywalking-java/pull/95#discussion_r790439901
########## File path: apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/theadpool/ThreadPoolService.java ########## @@ -0,0 +1,102 @@ +/* + * 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.skywalking.apm.agent.core.theadpool; + +import com.google.common.collect.ImmutableMap; +import java.util.List; +import java.util.Map; +import java.util.concurrent.Executors; +import java.util.concurrent.ScheduledFuture; +import java.util.concurrent.ThreadPoolExecutor; +import java.util.concurrent.TimeUnit; +import java.util.function.Function; +import java.util.function.Supplier; +import org.apache.skywalking.apm.agent.core.boot.BootService; +import org.apache.skywalking.apm.agent.core.boot.DefaultNamedThreadFactory; +import org.apache.skywalking.apm.agent.core.logging.api.ILog; +import org.apache.skywalking.apm.agent.core.logging.api.LogManager; +import org.apache.skywalking.apm.agent.core.meter.MeterFactory; +import org.apache.skywalking.apm.util.RunnableWithExceptionProtection; + +public class ThreadPoolService implements BootService, Runnable { + + private static final ILog LOGGER = LogManager.getLogger(ThreadPoolService.class); + + private volatile ScheduledFuture<?> buildMeterMetricFuture; + + private static final Map<String, Function<ThreadPoolExecutor, Supplier<Double>>> METRIC_MAP = ImmutableMap.of( + "core_pool_size", + (ThreadPoolExecutor threadPoolExecutor) -> () -> { + return (double) threadPoolExecutor.getCorePoolSize(); + }, + "max_pool_size", + (ThreadPoolExecutor threadPoolExecutor) -> () -> (double) threadPoolExecutor.getMaximumPoolSize(), + "pool_size", + (ThreadPoolExecutor threadPoolExecutor) -> () -> (double) threadPoolExecutor.getPoolSize(), + "queue_size", + (ThreadPoolExecutor threadPoolExecutor) -> () -> (double) threadPoolExecutor.getQueue().size(), + "active_size", + (ThreadPoolExecutor threadPoolExecutor) -> () -> (double) threadPoolExecutor.getActiveCount()); + + @Override + public void prepare() throws Throwable { + } + + @Override + public void boot() throws Throwable { + buildMeterMetricFuture = Executors.newSingleThreadScheduledExecutor( + new DefaultNamedThreadFactory("ThreadPoolService-BuildMetric")) + .scheduleAtFixedRate(new RunnableWithExceptionProtection( + this, t -> LOGGER.error("ThreadPoolService-BuildMetric failure.", t) + ), 0, 1, TimeUnit.SECONDS); + + } + + @Override + public void onComplete() throws Throwable { + + } + + @Override + public void shutdown() throws Throwable { + buildMeterMetricFuture.cancel(true); + } + + private void buildThreadPoolMeterMetric() { + String threadPoolMeterName = "thread_pool"; + String poolNameTag = "pool_name"; + String metricTypeTag = "metric_type"; + List<ThreadPoolSourceData> threadPoolSourceDataList = ThreadPoolRegister.getThreadPoolSourceDataList(); + threadPoolSourceDataList.forEach(it -> { + if (!it.getHasBuildMetric()) { + String poolName = it.getThreadPoolName().name().toLowerCase(); + ThreadPoolExecutor threadPoolExecutor = it.getThreadPoolExecutor(); + METRIC_MAP.forEach( + (key, value) -> MeterFactory.gauge(threadPoolMeterName, value.apply(threadPoolExecutor)) + .tag(poolNameTag, poolName).tag(metricTypeTag, key).build()); Review comment: bacasue plugin resgister and create gauge order is not certain， so scheduler get it and create the gauge, but only create onece -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
