| /** |
| * 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.yarn.server.sharedcachemanager.metrics; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Private; |
| import org.apache.hadoop.classification.InterfaceStability.Evolving; |
| 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.MetricsRegistry; |
| import org.apache.hadoop.metrics2.lib.MutableCounterLong; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * This class is for maintaining shared cache uploader requests metrics |
| * and publishing them through the metrics interfaces. |
| */ |
| @Private |
| @Evolving |
| @Metrics(about="shared cache upload metrics", context="yarn") |
| public class SharedCacheUploaderMetrics { |
| |
| static final Logger LOG = |
| LoggerFactory.getLogger(SharedCacheUploaderMetrics.class); |
| final MetricsRegistry registry; |
| private final static SharedCacheUploaderMetrics INSTANCE = create(); |
| |
| private SharedCacheUploaderMetrics() { |
| registry = new MetricsRegistry("SharedCacheUploaderRequests"); |
| LOG.debug("Initialized "+ registry); |
| } |
| |
| public static SharedCacheUploaderMetrics getInstance() { |
| return INSTANCE; |
| } |
| |
| static SharedCacheUploaderMetrics create() { |
| MetricsSystem ms = DefaultMetricsSystem.instance(); |
| |
| SharedCacheUploaderMetrics metrics = |
| new SharedCacheUploaderMetrics(); |
| ms.register("SharedCacheUploaderRequests", null, metrics); |
| return metrics; |
| } |
| |
| @Metric("Number of accepted uploads") MutableCounterLong acceptedUploads; |
| @Metric("Number of rejected uploads") MutableCounterLong rejectedUploads; |
| |
| /** |
| * One accepted upload event |
| */ |
| public void incAcceptedUploads() { |
| acceptedUploads.incr(); |
| } |
| |
| /** |
| * One rejected upload event |
| */ |
| public void incRejectedUploads() { |
| rejectedUploads.incr(); |
| } |
| |
| public long getAcceptedUploads() { return acceptedUploads.value(); } |
| public long getRejectUploads() { return rejectedUploads.value(); } |
| } |