| /* |
| * 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.function.ToLongFunction; |
| import java.util.stream.StreamSupport; |
| |
| import com.codahale.metrics.Counter; |
| import com.codahale.metrics.Gauge; |
| import org.apache.cassandra.db.Keyspace; |
| |
| import static org.apache.cassandra.metrics.CassandraMetricsRegistry.Metrics; |
| |
| /** |
| * Metrics related to Storage. |
| */ |
| public class StorageMetrics |
| { |
| private static final MetricNameFactory factory = new DefaultNameFactory("Storage"); |
| |
| public static final Counter load = Metrics.counter(factory.createMetricName("Load")); |
| public static final Counter uncompressedLoad = Metrics.counter(factory.createMetricName("UncompressedLoad")); |
| |
| public static final Gauge<Long> unreplicatedLoad = |
| createSummingGauge("UnreplicatedLoad", metric -> metric.unreplicatedLiveDiskSpaceUsed.getValue()); |
| public static final Gauge<Long> unreplicatedUncompressedLoad = |
| createSummingGauge("UnreplicatedUncompressedLoad", metric -> metric.unreplicatedUncompressedLiveDiskSpaceUsed.getValue()); |
| |
| public static final Counter uncaughtExceptions = Metrics.counter(factory.createMetricName("Exceptions")); |
| public static final Counter totalHintsInProgress = Metrics.counter(factory.createMetricName("TotalHintsInProgress")); |
| public static final Counter totalHints = Metrics.counter(factory.createMetricName("TotalHints")); |
| public static final Counter repairExceptions = Metrics.counter(factory.createMetricName("RepairExceptions")); |
| |
| private static Gauge<Long> createSummingGauge(String name, ToLongFunction<KeyspaceMetrics> extractor) |
| { |
| return Metrics.register(factory.createMetricName(name), |
| () -> StreamSupport.stream(Keyspace.all().spliterator(), false) |
| .mapToLong(keyspace -> extractor.applyAsLong(keyspace.metric)) |
| .sum()); |
| } |
| } |