| /* |
| * 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.flink.autoscaler.metrics; |
| |
| import org.apache.flink.runtime.rest.messages.job.metrics.AggregatedMetric; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.function.Predicate; |
| import java.util.stream.Collectors; |
| |
| /** |
| * Enum representing the collected Flink metrics for autoscaling. The actual metric names depend on |
| * the JobGraph. |
| */ |
| public enum FlinkMetric { |
| BUSY_TIME_PER_SEC(s -> s.equals("busyTimeMsPerSecond")), |
| SOURCE_TASK_NUM_RECORDS_IN_PER_SEC( |
| s -> s.startsWith("Source__") && s.endsWith(".numRecordsInPerSecond")), |
| SOURCE_TASK_NUM_RECORDS_OUT(s -> s.startsWith("Source__") && s.endsWith(".numRecordsOut")), |
| SOURCE_TASK_NUM_RECORDS_OUT_PER_SEC( |
| s -> s.startsWith("Source__") && s.endsWith(".numRecordsOutPerSecond")), |
| SOURCE_TASK_NUM_RECORDS_IN(s -> s.startsWith("Source__") && s.endsWith(".numRecordsIn")), |
| PENDING_RECORDS(s -> s.endsWith(".pendingRecords")), |
| BACKPRESSURE_TIME_PER_SEC(s -> s.equals("backPressuredTimeMsPerSecond")), |
| |
| HEAP_MEMORY_MAX(s -> s.equals("Status.JVM.Memory.Heap.Max")), |
| HEAP_MEMORY_USED(s -> s.equals("Status.JVM.Memory.Heap.Used")), |
| MANAGED_MEMORY_USED(s -> s.equals("Status.Flink.Memory.Managed.Used")), |
| METASPACE_MEMORY_USED(s -> s.equals("Status.JVM.Memory.Metaspace.Used")), |
| |
| TOTAL_GC_TIME_PER_SEC(s -> s.equals("Status.JVM.GarbageCollector.All.TimeMsPerSecond")), |
| |
| NUM_TASK_SLOTS_TOTAL(s -> s.equals("taskSlotsTotal")), |
| NUM_TASK_SLOTS_AVAILABLE(s -> s.equals("taskSlotsAvailable")); |
| |
| public static final Map<FlinkMetric, AggregatedMetric> FINISHED_METRICS = |
| Map.of( |
| FlinkMetric.BUSY_TIME_PER_SEC, zero(), |
| FlinkMetric.PENDING_RECORDS, zero(), |
| FlinkMetric.SOURCE_TASK_NUM_RECORDS_IN_PER_SEC, zero(), |
| FlinkMetric.SOURCE_TASK_NUM_RECORDS_IN, zero(), |
| FlinkMetric.SOURCE_TASK_NUM_RECORDS_OUT, zero()); |
| |
| public final Predicate<String> predicate; |
| |
| FlinkMetric(Predicate<String> predicate) { |
| this.predicate = predicate; |
| } |
| |
| public Optional<String> findAny(Collection<String> metrics) { |
| return metrics.stream().filter(predicate).findAny(); |
| } |
| |
| public List<String> findAll(Collection<String> metrics) { |
| return metrics.stream().filter(predicate).collect(Collectors.toList()); |
| } |
| |
| private static AggregatedMetric zero() { |
| return new AggregatedMetric("", 0., 0., 0., 0.); |
| } |
| } |