| /** |
| * 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.hdds.scm.pipeline; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.metrics2.MetricsCollector; |
| import org.apache.hadoop.metrics2.MetricsRecordBuilder; |
| import org.apache.hadoop.metrics2.MetricsSource; |
| import org.apache.hadoop.metrics2.MetricsSystem; |
| import org.apache.hadoop.metrics2.annotation.Metric; |
| import org.apache.hadoop.metrics2.annotation.Metrics; |
| import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem; |
| import org.apache.hadoop.metrics2.lib.Interns; |
| import org.apache.hadoop.metrics2.lib.MetricsRegistry; |
| import org.apache.hadoop.metrics2.lib.MutableCounterLong; |
| |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| /** |
| * This class maintains Pipeline related metrics. |
| */ |
| @InterfaceAudience.Private |
| @Metrics(about = "SCM PipelineManager Metrics", context = "ozone") |
| public final class SCMPipelineMetrics implements MetricsSource { |
| |
| private static final String SOURCE_NAME = |
| SCMPipelineMetrics.class.getSimpleName(); |
| |
| private MetricsRegistry registry; |
| |
| private @Metric MutableCounterLong numPipelineCreated; |
| private @Metric MutableCounterLong numPipelineCreationFailed; |
| private @Metric MutableCounterLong numPipelineDestroyed; |
| private @Metric MutableCounterLong numPipelineDestroyFailed; |
| private @Metric MutableCounterLong numPipelineReportProcessed; |
| private @Metric MutableCounterLong numPipelineReportProcessingFailed; |
| private Map<PipelineID, MutableCounterLong> numBlocksAllocated; |
| |
| /** Private constructor. */ |
| private SCMPipelineMetrics() { |
| this.registry = new MetricsRegistry(SOURCE_NAME); |
| numBlocksAllocated = new ConcurrentHashMap<>(); |
| } |
| |
| /** |
| * Create and returns SCMPipelineMetrics instance. |
| * |
| * @return SCMPipelineMetrics |
| */ |
| public static SCMPipelineMetrics create() { |
| MetricsSystem ms = DefaultMetricsSystem.instance(); |
| return ms.register(SOURCE_NAME, "SCM PipelineManager Metrics", |
| new SCMPipelineMetrics()); |
| } |
| |
| /** |
| * Unregister the metrics instance. |
| */ |
| public void unRegister() { |
| MetricsSystem ms = DefaultMetricsSystem.instance(); |
| ms.unregisterSource(SOURCE_NAME); |
| } |
| |
| @Override |
| @SuppressWarnings("SuspiciousMethodCalls") |
| public void getMetrics(MetricsCollector collector, boolean all) { |
| MetricsRecordBuilder recordBuilder = collector.addRecord(SOURCE_NAME); |
| numPipelineCreated.snapshot(recordBuilder, true); |
| numPipelineCreationFailed.snapshot(recordBuilder, true); |
| numPipelineDestroyed.snapshot(recordBuilder, true); |
| numPipelineDestroyFailed.snapshot(recordBuilder, true); |
| numPipelineReportProcessed.snapshot(recordBuilder, true); |
| numPipelineReportProcessingFailed.snapshot(recordBuilder, true); |
| numBlocksAllocated |
| .forEach((pid, metric) -> metric.snapshot(recordBuilder, true)); |
| } |
| |
| void createPerPipelineMetrics(Pipeline pipeline) { |
| numBlocksAllocated.put(pipeline.getId(), new MutableCounterLong(Interns |
| .info(getBlockAllocationMetricName(pipeline), |
| "Number of blocks allocated in pipeline " + pipeline.getId()), 0L)); |
| } |
| |
| public static String getBlockAllocationMetricName(Pipeline pipeline) { |
| return "NumBlocksAllocated-" + pipeline.getType() + "-" + pipeline |
| .getFactor() + "-" + pipeline.getId().getId(); |
| } |
| |
| void removePipelineMetrics(PipelineID pipelineID) { |
| numBlocksAllocated.remove(pipelineID); |
| } |
| |
| /** |
| * Increments number of blocks allocated for the pipeline. |
| */ |
| void incNumBlocksAllocated(PipelineID pipelineID) { |
| Optional.of(numBlocksAllocated.get(pipelineID)).ifPresent( |
| MutableCounterLong::incr); |
| } |
| |
| /** |
| * Increments number of successful pipeline creation count. |
| */ |
| void incNumPipelineCreated() { |
| numPipelineCreated.incr(); |
| } |
| |
| /** |
| * Increments number of failed pipeline creation count. |
| */ |
| void incNumPipelineCreationFailed() { |
| numPipelineCreationFailed.incr(); |
| } |
| |
| /** |
| * Increments number of successful pipeline destroy count. |
| */ |
| void incNumPipelineDestroyed() { |
| numPipelineDestroyed.incr(); |
| } |
| |
| /** |
| * Increments number of failed pipeline destroy count. |
| */ |
| void incNumPipelineDestroyFailed() { |
| numPipelineDestroyFailed.incr(); |
| } |
| |
| /** |
| * Increments number of pipeline report processed count. |
| */ |
| void incNumPipelineReportProcessed() { |
| numPipelineReportProcessed.incr(); |
| } |
| |
| /** |
| * Increments number of pipeline report processing failed count. |
| */ |
| void incNumPipelineReportProcessingFailed() { |
| numPipelineReportProcessingFailed.incr(); |
| } |
| } |