| /* |
| * 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.cassandra.metrics; |
| |
| import java.util.Collections; |
| import java.util.EnumMap; |
| import java.util.Map; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| |
| import com.codahale.metrics.Counter; |
| import com.codahale.metrics.Histogram; |
| import org.apache.cassandra.net.Verb; |
| import org.apache.cassandra.repair.messages.RepairMessage; |
| |
| import static org.apache.cassandra.metrics.CassandraMetricsRegistry.Metrics; |
| |
| public class RepairMetrics |
| { |
| public static final String TYPE_NAME = "Repair"; |
| public static final Counter previewFailures = Metrics.counter(DefaultNameFactory.createMetricName(TYPE_NAME, "PreviewFailures", null)); |
| public static final Histogram retries = Metrics.histogram(DefaultNameFactory.createMetricName(TYPE_NAME, "Retries", null), false); |
| public static final Map<Verb, Histogram> retriesByVerb; |
| public static final Counter retryTimeout = Metrics.counter(DefaultNameFactory.createMetricName(TYPE_NAME, "RetryTimeout", null)); |
| public static final Map<Verb, Counter> retryTimeoutByVerb; |
| public static final Counter retryFailure = Metrics.counter(DefaultNameFactory.createMetricName(TYPE_NAME, "RetryFailure", null)); |
| public static final Map<Verb, Counter> retryFailureByVerb; |
| |
| static |
| { |
| Map<Verb, Histogram> retries = new EnumMap<>(Verb.class); |
| Map<Verb, Counter> timeout = new EnumMap<>(Verb.class); |
| Map<Verb, Counter> failure = new EnumMap<>(Verb.class); |
| for (Verb verb : RepairMessage.ALLOWS_RETRY) |
| { |
| retries.put(verb, Metrics.histogram(DefaultNameFactory.createMetricName(TYPE_NAME, "Retries-" + verb.name(), null), false)); |
| timeout.put(verb, Metrics.counter(DefaultNameFactory.createMetricName(TYPE_NAME, "RetryTimeout-" + verb.name(), null))); |
| failure.put(verb, Metrics.counter(DefaultNameFactory.createMetricName(TYPE_NAME, "RetryFailure-" + verb.name(), null))); |
| } |
| retriesByVerb = Collections.unmodifiableMap(retries); |
| retryTimeoutByVerb = Collections.unmodifiableMap(timeout); |
| retryFailureByVerb = Collections.unmodifiableMap(failure); |
| } |
| |
| public static void init() |
| { |
| // noop |
| } |
| |
| @VisibleForTesting |
| public static void unsafeReset() |
| { |
| reset(previewFailures); |
| reset(retries); |
| retriesByVerb.values().forEach(RepairMetrics::reset); |
| reset(retryTimeout); |
| retryTimeoutByVerb.values().forEach(RepairMetrics::reset); |
| reset(retryFailure); |
| retryFailureByVerb.values().forEach(RepairMetrics::reset); |
| } |
| |
| private static void reset(Histogram retries) |
| { |
| ((ClearableHistogram) retries).clear(); |
| } |
| |
| private static void reset(Counter counter) |
| { |
| counter.dec(counter.getCount()); |
| } |
| |
| public static void retry(Verb verb, int attempt) |
| { |
| retries.update(attempt); |
| retriesByVerb.get(verb).update(attempt); |
| } |
| |
| public static void retryTimeout(Verb verb) |
| { |
| retryTimeout.inc(); |
| retryTimeoutByVerb.get(verb).inc(); |
| } |
| |
| public static void retryFailure(Verb verb) |
| { |
| retryFailure.inc(); |
| retryFailureByVerb.get(verb).inc(); |
| } |
| } |