tillrohrmann commented on a change in pull request #9760: [FLINK-13982][runtime] Implement memory calculation logics URL: https://github.com/apache/flink/pull/9760#discussion_r333990070
########## File path: flink-runtime/src/main/java/org/apache/flink/runtime/clusterframework/TaskExecutorResourceUtils.java ########## @@ -0,0 +1,659 @@ +/* + * 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.runtime.clusterframework; + +import org.apache.flink.configuration.Configuration; +import org.apache.flink.configuration.IllegalConfigurationException; +import org.apache.flink.configuration.MemorySize; +import org.apache.flink.configuration.NettyShuffleEnvironmentOptions; +import org.apache.flink.configuration.TaskManagerOptions; +import org.apache.flink.runtime.util.ConfigurationParserUtils; + +import java.util.HashMap; +import java.util.Map; + +import static org.apache.flink.util.Preconditions.checkArgument; +import static org.apache.flink.util.Preconditions.checkNotNull; + +/** + * Utility class for TaskExecutor memory configurations. + * + * <p>A TaskExecutor's memory consists of the following components. + * <ul> + * <li>Framework Heap Memory</li> + * <li>Task Heap Memory</li> + * <li>Task Off-Heap Memory</li> + * <li>Shuffle Memory</li> + * <li>Managed Memory</li> + * <ul> + * <li>On-Heap Managed Memory</li> + * <li>Off-Heap Managed Memory</li> + * </ul> + * <li>JVM Metaspace</li> + * <li>JVM Overhead</li> + * </ul> + * Among all the components, Framework Heap Memory, Task Heap Memory and On-Heap Managed Memory use on heap memory, + * while the rest use off heap memory. We use Total Process Memory to refer to all the memory components, while Total + * Flink Memory refering to all the components except JVM Metaspace and JVM Overhead. + * + * <p>The relationships of TaskExecutor memory components are shown below. + * <pre> + * ┌ ─ ─ Total Process Memory ─ ─ ┐ + * ┌ ─ ─ Total Flink Memory ─ ─ ┐ + * │ ┌───────────────────────────┐ │ + * ││ Framework Heap Memory ││ ─┐ + * │ └───────────────────────────┘ │ │ + * │┌───────────────────────────┐│ │ + * │ │ Task Heap Memory │ │ ─┤ + * │└───────────────────────────┘│ │ + * │ ┌───────────────────────────┐ │ │ + * ┌─ ││ Task Off-Heap Memory ││ │ + * │ │ └───────────────────────────┘ │ ├─ On-Heap + * │ │┌───────────────────────────┐│ │ + * ├─ │ │ Shuffle Memory │ │ │ + * │ │└───────────────────────────┘│ │ + * │ │ ┌───── Managed Memory ──────┐ │ │ + * │ ││┌─────────────────────────┐││ │ + * │ │ ││ On-Heap Managed Memory ││ │ ─┘ + * │ ││├─────────────────────────┤││ + * Off-Heap ─┼─ │ ││ Off-Heap Managed Memory ││ │ + * │ ││└─────────────────────────┘││ + * │ │ └───────────────────────────┘ │ + * │ └ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ┘ + * │ │┌─────────────────────────────┐│ + * ├─ │ JVM Metaspace │ + * │ │└─────────────────────────────┘│ + * │ ┌─────────────────────────────┐ + * └─ ││ JVM Overhead ││ + * └─────────────────────────────┘ + * └ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ┘ + * </pre> + */ +public class TaskExecutorResourceUtils { + + private TaskExecutorResourceUtils() {} + + // ------------------------------------------------------------------------ + // Generating JVM Parameters + // ------------------------------------------------------------------------ + + public static String generateJvmParametersStr(final TaskExecutorResourceSpec taskExecutorResourceSpec) { + final MemorySize jvmHeapSize = taskExecutorResourceSpec.getFrameworkHeapSize() + .add(taskExecutorResourceSpec.getTaskHeapSize()) + .add(taskExecutorResourceSpec.getOnHeapManagedMemorySize()); + final MemorySize jvmDirectSize = taskExecutorResourceSpec.getTaskOffHeapSize() + .add(taskExecutorResourceSpec.getShuffleMemSize()); + final MemorySize jvmMetaspaceSize = taskExecutorResourceSpec.getJvmMetaspaceSize(); + + return "-Xmx" + jvmHeapSize.getBytes() + + " -Xms" + jvmHeapSize.getBytes() + + " -XX:MaxDirectMemorySize=" + jvmDirectSize.getBytes() + + " -XX:MetaspaceSize=" + jvmMetaspaceSize.getBytes(); + } + + // ------------------------------------------------------------------------ + // Generating Dynamic Config Options + // ------------------------------------------------------------------------ + + public static String generateDynamicConfigsStr(final TaskExecutorResourceSpec taskExecutorResourceSpec) { + final Map<String, String> configs = new HashMap<>(); + configs.put(TaskManagerOptions.FRAMEWORK_HEAP_MEMORY.key(), taskExecutorResourceSpec.getFrameworkHeapSize().getBytes() + "b"); + configs.put(TaskManagerOptions.TASK_HEAP_MEMORY.key(), taskExecutorResourceSpec.getTaskHeapSize().getBytes() + "b"); + configs.put(TaskManagerOptions.TASK_OFF_HEAP_MEMORY.key(), taskExecutorResourceSpec.getTaskOffHeapSize().getBytes() + "b"); + configs.put(TaskManagerOptions.SHUFFLE_MEMORY_MIN.key(), taskExecutorResourceSpec.getShuffleMemSize().getBytes() + "b"); + configs.put(TaskManagerOptions.SHUFFLE_MEMORY_MAX.key(), taskExecutorResourceSpec.getShuffleMemSize().getBytes() + "b"); + configs.put(TaskManagerOptions.MANAGED_MEMORY_SIZE.key(), taskExecutorResourceSpec.getManagedMemorySize().getBytes() + "b"); + configs.put(TaskManagerOptions.MANAGED_MEMORY_OFFHEAP_SIZE.key(), taskExecutorResourceSpec.getOffHeapManagedMemorySize().getBytes() + "b"); + return assembleDynamicConfigsStr(configs); + } + + private static String assembleDynamicConfigsStr(final Map<String, String> configs) { + final StringBuilder sb = new StringBuilder(); + for (Map.Entry<String, String> entry : configs.entrySet()) { + sb.append("-D ").append(entry.getKey()).append("=").append(entry.getValue()).append(" "); + } + return sb.toString(); + } + + // ------------------------------------------------------------------------ + // Memory Configuration Calculations + // ------------------------------------------------------------------------ + + public static TaskExecutorResourceSpec resourceSpecFromConfig(final Configuration config) { + if (isTaskHeapMemorySizeExplicitlyConfigured(config) && isManagedMemorySizeExplicitlyConfigured(config)) { + // both task heap memory and managed memory are configured, use these to derive total flink memory + return deriveResourceSpecWithExplicitTaskAndManagedMemory(config); + } else if (isTotalFlinkMemorySizeExplicitlyConfigured(config)) { + // either of task heap memory and managed memory is not configured, total flink memory is configured, + // derive from total flink memory + return deriveResourceSpecWithTotalFlinkMemory(config); + } else if (isTotalProcessMemorySizeExplicitlyConfigured(config)) { + // total flink memory is not configured, total process memory is configured, + // derive from total process memory + return deriveResourceSpecWithTotalProcessMemory(config); + } else { + throw new IllegalConfigurationException("Either Task Heap Memory size and Managed Memory size, or Total Flink" + + " Memory size, or Total Process Memory size need to be configured explicitly."); + } + } + + private static TaskExecutorResourceSpec deriveResourceSpecWithExplicitTaskAndManagedMemory(final Configuration config) { + // derive flink internal memory from explicitly configure task heap memory size and managed memory size + + final MemorySize taskHeapMemorySize = getTaskHeapMemorySize(config); + final MemorySize managedMemorySize = getManagedMemorySize(config); + + final MemorySize frameworkHeapMemorySize = getFrameworkHeapMemorySize(config); + final MemorySize taskOffHeapMemorySize = getTaskOffHeapMemorySize(config); + + final OnHeapAndOffHeapManagedMemory onHeapAndOffHeapManagedMemory = deriveOnHeapAndOffHeapMemoryFromManagedMemory(config, managedMemorySize); + + final MemorySize shuffleMemorySize; + final MemorySize totalFlinkExcludeShuffleMemorySize = + frameworkHeapMemorySize.add(taskHeapMemorySize).add(taskOffHeapMemorySize).add(managedMemorySize); + + if (isTotalFlinkMemorySizeExplicitlyConfigured(config)) { + // derive shuffle memory from total flink memory, and check against shuffle min/max + final MemorySize totalFlinkMemorySize = getTotalFlinkMemorySize(config); + if (totalFlinkExcludeShuffleMemorySize.getBytes() > totalFlinkMemorySize.getBytes()) { + throw new IllegalConfigurationException( + "Sum of configured Framework Heap Memory (" + frameworkHeapMemorySize.toString() + + "), Task Heap Memory (" + taskHeapMemorySize.toString() + + "), Task Off-Heap Memory (" + taskOffHeapMemorySize.toString() + + ") and Managed Memory (" + managedMemorySize.toString() + + ") exceed configured Total Flink Memory (" + totalFlinkMemorySize.toString() + ")."); + } + shuffleMemorySize = totalFlinkMemorySize.subtract(totalFlinkExcludeShuffleMemorySize); + sanityCheckShuffleMemory(config, shuffleMemorySize, totalFlinkMemorySize); + } else { + // derive shuffle memory from shuffle configs + if (isUsingLegacyShuffleConfigs(config)) { + shuffleMemorySize = getShuffleMemorySizeWithLegacyConfig(config); + } else { + shuffleMemorySize = deriveShuffleMemoryWithInverseFraction(config, totalFlinkExcludeShuffleMemorySize); + } + } Review comment: Looking at the code, we could simply remove the `if (...) {}` block because we call `sanityCheckTotalFlinkMemory` a couple of lines further down. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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