| /* |
| * 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.beam.runners.dataflow.worker.util.common.worker; |
| |
| import edu.umd.cs.findbugs.annotations.SuppressFBWarnings; |
| import org.apache.beam.runners.core.metrics.ExecutionStateTracker; |
| import org.apache.beam.runners.dataflow.worker.DataflowOperationContext.DataflowExecutionState; |
| import org.apache.beam.runners.dataflow.worker.counters.Counter; |
| import org.apache.beam.runners.dataflow.worker.counters.CounterName; |
| import org.apache.beam.runners.dataflow.worker.counters.CounterSet; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.annotations.VisibleForTesting; |
| |
| /** Counts the Bytes and MSECS spent within a shuffle read. */ |
| public class ShuffleReadCounter { |
| private final String originalShuffleStepName; |
| private final boolean experimentEnabled; |
| |
| public CounterSet counterSet; |
| |
| private Counter<Long, Long> currentCounter; |
| /** |
| * Counter to increment with the bytes read from the underlying shuffle iterator, or null if no |
| * counting is needed. |
| */ |
| public final Counter<Long, Long> legacyPerOperationPerDatasetBytesCounter; |
| |
| public static final String SHUFFLE_BYTES_READ = "ShuffleBytesRead"; |
| |
| public ShuffleReadCounter( |
| String originalShuffleStepName, |
| boolean experimentEnabled, |
| Counter<Long, Long> legacyPerOperationPerDatasetBytesCounter) { |
| this.originalShuffleStepName = originalShuffleStepName; |
| this.experimentEnabled = experimentEnabled; |
| this.legacyPerOperationPerDatasetBytesCounter = legacyPerOperationPerDatasetBytesCounter; |
| this.counterSet = new CounterSet(); |
| } |
| |
| @SuppressWarnings("ReferenceEquality") |
| @SuppressFBWarnings("ES_COMPARING_STRINGS_WITH_EQ") |
| private void checkState() { |
| if (this.experimentEnabled) { |
| ExecutionStateTracker.ExecutionState currentState = |
| ExecutionStateTracker.getCurrentExecutionState(); |
| String currentStateName = null; |
| if (currentState instanceof DataflowExecutionState) { |
| currentStateName = ((DataflowExecutionState) currentState).getStepName().originalName(); |
| } |
| if (this.currentCounter != null |
| && currentStateName == this.currentCounter.getName().originalRequestingStepName()) { |
| // If the step name of the state has not changed do not do another lookup. |
| return; |
| } |
| CounterName name = |
| ShuffleReadCounter.generateCounterName(this.originalShuffleStepName, currentStateName); |
| this.currentCounter = this.counterSet.longSum(name); |
| } else { |
| this.currentCounter = this.legacyPerOperationPerDatasetBytesCounter; |
| } |
| } |
| |
| public void addBytesRead(long n) { |
| checkState(); |
| if (this.currentCounter == null) { |
| return; |
| } |
| this.currentCounter.addValue(n); |
| } |
| |
| public CounterSet getCounterSet() { |
| return this.counterSet; |
| } |
| |
| @VisibleForTesting |
| public static CounterName generateCounterName( |
| String originalShuffleStepName, String executingStepOriginalName) { |
| return CounterName.named(SHUFFLE_BYTES_READ) |
| .withOriginalName(originalShuffleStepName) |
| .withOriginalRequestingStepName(executingStepOriginalName) |
| .withOrigin("SYSTEM"); |
| } |
| } |