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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2021/01/20 14:51:13 UTC
[GitHub] [flink] xintongsong commented on a change in pull request #14647: [FLINK-20835] Implement FineGrainedSlotManager
xintongsong commented on a change in pull request #14647:
URL: https://github.com/apache/flink/pull/14647#discussion_r560763453
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorInfo.java
##########
@@ -0,0 +1,53 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+
+/** Basic resource information of a TaskExecutor. */
+public interface TaskExecutorInfo {
Review comment:
I think the class name is a bit too general.
Maybe `TaskManagerResourceView` or `TaskManagerResourceStatus` to indicate 1) it's about resource and 2) it provides a view of the a changeable status.
##########
File path: flink-core/src/main/java/org/apache/flink/configuration/ClusterOptions.java
##########
@@ -111,6 +111,19 @@
.withDescription(
"Defines whether the cluster uses declarative resource management.");
+ @Documentation.ExcludeFromDocumentation
+ public static final ConfigOption<Boolean> ENABLE_FINE_GRAINED_RESOURCE_MANAGEMENT =
+ ConfigOptions.key("cluster.fine-grained-resource-management.enabled")
+ .booleanType()
+ .defaultValue(false)
+ .withDescription(
+ "Defines whether the cluster uses fine-grained resource management.");
+
+ public static boolean isFineGrainedResourceManagementEnabled(Configuration configuration) {
Review comment:
nit: call me captious, but maybe keep the same order between fine-grained and declarative for the config options and methods.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorTracker.java
##########
@@ -0,0 +1,274 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.api.common.JobID;
+import org.apache.flink.api.common.time.Time;
+import org.apache.flink.runtime.clusterframework.types.AllocationID;
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.runtime.resourcemanager.registration.TaskExecutorConnection;
+import org.apache.flink.runtime.taskexecutor.SlotReport;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/** Tracks TaskExecutor's resource and slot status. */
+interface TaskExecutorTracker {
+
+ /**
+ * Registers the given listener with this tracker.
+ *
+ * @param slotStatusUpdateListener listener to register
+ */
+ void registerSlotStatusUpdateListener(SlotStatusUpdateListener slotStatusUpdateListener);
+
+ // ---------------------------------------------------------------------------------------------
+ // Add / Remove (pending) Resource
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Register a new task executor with its initial slot report.
+ *
+ * @param taskExecutorConnection of the new task executor
+ * @param initialSlotReport of the new task executor
+ * @param totalResourceProfile of the new task executor
+ * @param defaultSlotResourceProfile of the new task executor
+ */
+ void addTaskExecutor(
+ TaskExecutorConnection taskExecutorConnection,
+ SlotReport initialSlotReport,
+ ResourceProfile totalResourceProfile,
+ ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Add a new pending task executor with its resource profile.
+ *
+ * @param totalResourceProfile of the pending task executor
+ * @param defaultSlotResourceProfile of the pending task executor
+ */
+ void addPendingTaskExecutor(
+ ResourceProfile totalResourceProfile, ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Unregister a task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ */
+ void removeTaskExecutor(InstanceID instanceId);
+
Review comment:
Should there be a method for removing a pending task executor? Say the worker is not registered and is no longer needed.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorTracker.java
##########
@@ -0,0 +1,274 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.api.common.JobID;
+import org.apache.flink.api.common.time.Time;
+import org.apache.flink.runtime.clusterframework.types.AllocationID;
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.runtime.resourcemanager.registration.TaskExecutorConnection;
+import org.apache.flink.runtime.taskexecutor.SlotReport;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/** Tracks TaskExecutor's resource and slot status. */
+interface TaskExecutorTracker {
+
+ /**
+ * Registers the given listener with this tracker.
+ *
+ * @param slotStatusUpdateListener listener to register
+ */
+ void registerSlotStatusUpdateListener(SlotStatusUpdateListener slotStatusUpdateListener);
+
+ // ---------------------------------------------------------------------------------------------
+ // Add / Remove (pending) Resource
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Register a new task executor with its initial slot report.
+ *
+ * @param taskExecutorConnection of the new task executor
+ * @param initialSlotReport of the new task executor
+ * @param totalResourceProfile of the new task executor
+ * @param defaultSlotResourceProfile of the new task executor
+ */
+ void addTaskExecutor(
+ TaskExecutorConnection taskExecutorConnection,
+ SlotReport initialSlotReport,
+ ResourceProfile totalResourceProfile,
+ ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Add a new pending task executor with its resource profile.
+ *
+ * @param totalResourceProfile of the pending task executor
+ * @param defaultSlotResourceProfile of the pending task executor
+ */
+ void addPendingTaskExecutor(
+ ResourceProfile totalResourceProfile, ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Unregister a task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ */
+ void removeTaskExecutor(InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Slot status updates
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Find a task executor to fulfill the given resource requirement.
+ *
+ * @param resourceProfile of the given requirement
+ * @param taskExecutorMatchingStrategy to use
+ * @return An Optional of {@link TaskExecutorConnection}, if find, of the matching task
+ * executor.
+ */
+ Optional<TaskExecutorConnection> findTaskExecutorToFulfill(
+ ResourceProfile resourceProfile,
+ TaskExecutorMatchingStrategy taskExecutorMatchingStrategy);
+
+ /**
+ * Notify the allocation of the given slot is started.
+ *
+ * @param allocationId of the allocated slot
+ * @param jobId of the allocated slot
+ * @param instanceId of the located task executor
+ * @param requiredResource of the allocated slot
+ */
+ void notifyAllocationStart(
+ AllocationID allocationId,
+ JobID jobId,
+ InstanceID instanceId,
+ ResourceProfile requiredResource);
+
+ /**
+ * Notify the allocation of the given slot is completed.
+ *
+ * @param instanceId of the located task executor
+ * @param allocationId of the allocated slot
+ */
+ void notifyAllocationComplete(InstanceID instanceId, AllocationID allocationId);
+
+ /**
+ * Notify the given allocated slot is free.
+ *
+ * @param allocationId of the allocated slot
+ */
+ void notifyFree(AllocationID allocationId);
+
+ /**
+ * Notifies the tracker about the slot statuses.
+ *
+ * @param slotReport slot report
+ * @param instanceId of the task executor
+ */
+ void notifySlotStatus(SlotReport slotReport, InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Utility method
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Get the instance ids of all registered task executors.
+ *
+ * @return a set of instance ids of all registered task executors.
+ */
+ Set<InstanceID> getTaskExecutors();
+
+ /**
+ * Check if there is a registered task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ * @return whether there is a registered task executor with the given instance id
+ */
+ boolean isTaskExecutorRegistered(InstanceID instanceId);
+
+ /**
+ * Find an exactly matching pending task executor with the given resource profile.
+ *
+ * @param initialSlotReport of the task executor
+ * @param totalResourceProfile of the task executor
+ * @param defaultResourceProfile of the task executor
+ * @return An Optional of {@link PendingTaskManager}, if find, of the matching pending task
+ * executor.
+ */
+ Optional<PendingTaskManager> findMatchingPendingTaskManager(
+ SlotReport initialSlotReport,
+ ResourceProfile totalResourceProfile,
+ ResourceProfile defaultResourceProfile);
+
+ // ---------------------------------------------------------------------------------------------
+ // TaskExecutor idleness / redundancy
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Get all task executors which idle exceed the given timeout period
+ *
+ * @param taskManagerTimeout timeout period
+ * @return a map of timeout task executors' connection index by the instance id
+ */
+ Map<InstanceID, TaskExecutorConnection> getTimeOutTaskExecutors(Time taskManagerTimeout);
Review comment:
This method should not belong to this interface.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorAllocationStrategy.java
##########
@@ -0,0 +1,43 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.api.common.JobID;
+import org.apache.flink.api.java.tuple.Tuple2;
+import org.apache.flink.runtime.slots.ResourceCounter;
+
+import java.util.Collections;
+import java.util.Map;
+
+/** Strategy how to allocate new task executors to fulfill the unfulfilled requirements. */
+public interface TaskExecutorAllocationStrategy {
+ TaskExecutorAllocationStrategy NO_OP_STRATEGY =
+ (requirements, existingPendingResources) -> Collections.emptyMap();
+
+ /**
+ * Calculate {@link PendingTaskManager}s needed to fulfill the given requirements.
+ *
+ * @param requirements requirements indexed by jobId
+ * @param existingPendingResources existing pending resources can be used to fulfill requirement
+ * @return {@link PendingTaskManager}s needed and whether all the requirements can be fulfilled
+ * after allocation of pending task executors, indexed by jobId
+ */
+ Map<JobID, Tuple2<Map<PendingTaskManager, Integer>, Boolean>> getTaskExecutorsToFulfill(
Review comment:
How do we guarantee `TaskExecutorMatchingStrategy` matches slot to pending TMs in the same way `TaskExecutorAllocationStrategy` calculates needed TMs?
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/SlotManagerUtils.java
##########
@@ -0,0 +1,36 @@
+/*
Review comment:
The commit message is a bit misleading.
It sounds like a new util class is implemented, which should not be a hotfix, while actually the commit only moves some existing codes for deduplication.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/AnyMatchingTaskExecutorMatchingStrategy.java
##########
@@ -0,0 +1,50 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+
+import java.util.Map;
+import java.util.Optional;
+
+/** {@link TaskExecutorMatchingStrategy} which picks the first matching task executor. */
+public enum AnyMatchingTaskExecutorMatchingStrategy implements TaskExecutorMatchingStrategy {
+ INSTANCE;
+
+ @Override
+ public Optional<InstanceID> findMatchingTaskExecutor(
+ ResourceProfile requirement,
+ Map<InstanceID, ? extends TaskExecutorInfo> taskExecutors) {
+ return taskExecutors.entrySet().stream()
+ .filter(taskExecutor -> canFulfillRequirement(requirement, taskExecutor.getValue()))
+ .findFirst()
+ .map(Map.Entry::getKey);
+ }
+
+ private boolean canFulfillRequirement(
Review comment:
can be static
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorTracker.java
##########
@@ -0,0 +1,274 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.api.common.JobID;
+import org.apache.flink.api.common.time.Time;
+import org.apache.flink.runtime.clusterframework.types.AllocationID;
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.runtime.resourcemanager.registration.TaskExecutorConnection;
+import org.apache.flink.runtime.taskexecutor.SlotReport;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/** Tracks TaskExecutor's resource and slot status. */
+interface TaskExecutorTracker {
Review comment:
My gut feeling is that, this interface contains too many methods, and not all of them are closely related. They could be further grouped and structured.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskManagerSlotInformation.java
##########
@@ -28,6 +30,10 @@
SlotID getSlotId();
+ AllocationID getAllocationId();
+
+ JobID getJobId();
Review comment:
These two should be marked `@Nullable`
##########
File path: flink-runtime/src/test/java/org/apache/flink/runtime/resourcemanager/slotmanager/AnyMatchingTaskExecutorMatchingStrategyTest.java
##########
@@ -0,0 +1,85 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.util.TestLogger;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+/** Tests for the {@link AnyMatchingTaskExecutorMatchingStrategy}. */
+public class AnyMatchingTaskExecutorMatchingStrategyTest extends TestLogger {
+ private final InstanceID instanceIdOfLargeTaskExecutor = new InstanceID();
+ private final InstanceID instanceIdOfSmallTaskExecutor = new InstanceID();
+ private final ResourceProfile largeResourceProfile = ResourceProfile.fromResources(10.2, 42);
+ private final ResourceProfile smallResourceProfile = ResourceProfile.fromResources(1, 1);
Review comment:
static
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorTracker.java
##########
@@ -0,0 +1,274 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.api.common.JobID;
+import org.apache.flink.api.common.time.Time;
+import org.apache.flink.runtime.clusterframework.types.AllocationID;
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.runtime.resourcemanager.registration.TaskExecutorConnection;
+import org.apache.flink.runtime.taskexecutor.SlotReport;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/** Tracks TaskExecutor's resource and slot status. */
+interface TaskExecutorTracker {
+
+ /**
+ * Registers the given listener with this tracker.
+ *
+ * @param slotStatusUpdateListener listener to register
+ */
+ void registerSlotStatusUpdateListener(SlotStatusUpdateListener slotStatusUpdateListener);
+
+ // ---------------------------------------------------------------------------------------------
+ // Add / Remove (pending) Resource
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Register a new task executor with its initial slot report.
+ *
+ * @param taskExecutorConnection of the new task executor
+ * @param initialSlotReport of the new task executor
+ * @param totalResourceProfile of the new task executor
+ * @param defaultSlotResourceProfile of the new task executor
+ */
+ void addTaskExecutor(
+ TaskExecutorConnection taskExecutorConnection,
+ SlotReport initialSlotReport,
+ ResourceProfile totalResourceProfile,
+ ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Add a new pending task executor with its resource profile.
+ *
+ * @param totalResourceProfile of the pending task executor
+ * @param defaultSlotResourceProfile of the pending task executor
+ */
+ void addPendingTaskExecutor(
+ ResourceProfile totalResourceProfile, ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Unregister a task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ */
+ void removeTaskExecutor(InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Slot status updates
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Find a task executor to fulfill the given resource requirement.
+ *
+ * @param resourceProfile of the given requirement
+ * @param taskExecutorMatchingStrategy to use
+ * @return An Optional of {@link TaskExecutorConnection}, if find, of the matching task
+ * executor.
+ */
+ Optional<TaskExecutorConnection> findTaskExecutorToFulfill(
Review comment:
This method should not belong to this interface.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/taskexecutor/TaskExecutorResourceUtils.java
##########
@@ -134,11 +134,13 @@ public static TaskExecutorResourceSpec resourceSpecFromConfigForLocalExecution(
public static Configuration adjustForLocalExecution(Configuration config) {
UNUSED_CONFIG_OPTIONS.forEach(option -> warnOptionHasNoEffectIfSet(config, option));
- setConfigOptionToPassedMaxIfNotSet(config, TaskManagerOptions.CPU_CORES, Double.MAX_VALUE);
+ setConfigOptionToPassedMaxIfNotSet(config, TaskManagerOptions.CPU_CORES, 1000000.0);
setConfigOptionToPassedMaxIfNotSet(
- config, TaskManagerOptions.TASK_HEAP_MEMORY, MemorySize.MAX_VALUE);
+ config, TaskManagerOptions.TASK_HEAP_MEMORY, MemorySize.ofMebiBytes(1024 * 1024));
setConfigOptionToPassedMaxIfNotSet(
- config, TaskManagerOptions.TASK_OFF_HEAP_MEMORY, MemorySize.MAX_VALUE);
+ config,
+ TaskManagerOptions.TASK_OFF_HEAP_MEMORY,
+ MemorySize.ofMebiBytes(1024 * 1024));
Review comment:
Let's replace the magic numbers with static constants.
##########
File path: flink-core/src/main/java/org/apache/flink/configuration/ClusterOptions.java
##########
@@ -111,6 +111,19 @@
.withDescription(
"Defines whether the cluster uses declarative resource management.");
+ @Documentation.ExcludeFromDocumentation
+ public static final ConfigOption<Boolean> ENABLE_FINE_GRAINED_RESOURCE_MANAGEMENT =
+ ConfigOptions.key("cluster.fine-grained-resource-management.enabled")
+ .booleanType()
+ .defaultValue(false)
+ .withDescription(
+ "Defines whether the cluster uses fine-grained resource management.");
+
+ public static boolean isFineGrainedResourceManagementEnabled(Configuration configuration) {
+ return isDeclarativeResourceManagementEnabled(configuration)
Review comment:
IIUC, we need to bind fine-grained with declarative because in the first step we implement the feature base on the declarative protocol, which also requires declarative slot pool being used. And once FLINK-20838 is finished, we would be able to support both protocols and no longer need this binding.
If this is the case, I would suggest to add a `TODO` here explaining why this is temporary needed and when should be removed.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorTracker.java
##########
@@ -0,0 +1,274 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.api.common.JobID;
+import org.apache.flink.api.common.time.Time;
+import org.apache.flink.runtime.clusterframework.types.AllocationID;
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.runtime.resourcemanager.registration.TaskExecutorConnection;
+import org.apache.flink.runtime.taskexecutor.SlotReport;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/** Tracks TaskExecutor's resource and slot status. */
+interface TaskExecutorTracker {
+
+ /**
+ * Registers the given listener with this tracker.
+ *
+ * @param slotStatusUpdateListener listener to register
+ */
+ void registerSlotStatusUpdateListener(SlotStatusUpdateListener slotStatusUpdateListener);
+
+ // ---------------------------------------------------------------------------------------------
+ // Add / Remove (pending) Resource
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Register a new task executor with its initial slot report.
+ *
+ * @param taskExecutorConnection of the new task executor
+ * @param initialSlotReport of the new task executor
+ * @param totalResourceProfile of the new task executor
+ * @param defaultSlotResourceProfile of the new task executor
+ */
+ void addTaskExecutor(
+ TaskExecutorConnection taskExecutorConnection,
+ SlotReport initialSlotReport,
+ ResourceProfile totalResourceProfile,
+ ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Add a new pending task executor with its resource profile.
+ *
+ * @param totalResourceProfile of the pending task executor
+ * @param defaultSlotResourceProfile of the pending task executor
+ */
+ void addPendingTaskExecutor(
+ ResourceProfile totalResourceProfile, ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Unregister a task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ */
+ void removeTaskExecutor(InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Slot status updates
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Find a task executor to fulfill the given resource requirement.
+ *
+ * @param resourceProfile of the given requirement
+ * @param taskExecutorMatchingStrategy to use
+ * @return An Optional of {@link TaskExecutorConnection}, if find, of the matching task
+ * executor.
+ */
+ Optional<TaskExecutorConnection> findTaskExecutorToFulfill(
+ ResourceProfile resourceProfile,
+ TaskExecutorMatchingStrategy taskExecutorMatchingStrategy);
+
+ /**
+ * Notify the allocation of the given slot is started.
+ *
+ * @param allocationId of the allocated slot
+ * @param jobId of the allocated slot
+ * @param instanceId of the located task executor
+ * @param requiredResource of the allocated slot
+ */
+ void notifyAllocationStart(
+ AllocationID allocationId,
+ JobID jobId,
+ InstanceID instanceId,
+ ResourceProfile requiredResource);
+
+ /**
+ * Notify the allocation of the given slot is completed.
+ *
+ * @param instanceId of the located task executor
+ * @param allocationId of the allocated slot
+ */
+ void notifyAllocationComplete(InstanceID instanceId, AllocationID allocationId);
+
+ /**
+ * Notify the given allocated slot is free.
+ *
+ * @param allocationId of the allocated slot
+ */
+ void notifyFree(AllocationID allocationId);
+
+ /**
+ * Notifies the tracker about the slot statuses.
+ *
+ * @param slotReport slot report
+ * @param instanceId of the task executor
+ */
+ void notifySlotStatus(SlotReport slotReport, InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Utility method
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Get the instance ids of all registered task executors.
+ *
+ * @return a set of instance ids of all registered task executors.
+ */
+ Set<InstanceID> getTaskExecutors();
+
+ /**
+ * Check if there is a registered task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ * @return whether there is a registered task executor with the given instance id
+ */
+ boolean isTaskExecutorRegistered(InstanceID instanceId);
+
+ /**
+ * Find an exactly matching pending task executor with the given resource profile.
+ *
+ * @param initialSlotReport of the task executor
+ * @param totalResourceProfile of the task executor
+ * @param defaultResourceProfile of the task executor
+ * @return An Optional of {@link PendingTaskManager}, if find, of the matching pending task
+ * executor.
+ */
+ Optional<PendingTaskManager> findMatchingPendingTaskManager(
+ SlotReport initialSlotReport,
+ ResourceProfile totalResourceProfile,
+ ResourceProfile defaultResourceProfile);
+
+ // ---------------------------------------------------------------------------------------------
+ // TaskExecutor idleness / redundancy
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Get all task executors which idle exceed the given timeout period
+ *
+ * @param taskManagerTimeout timeout period
+ * @return a map of timeout task executors' connection index by the instance id
+ */
+ Map<InstanceID, TaskExecutorConnection> getTimeOutTaskExecutors(Time taskManagerTimeout);
+
+ /**
+ * Get the start time of idleness of the task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ * @return the start time of idleness
+ */
+ long getTaskExecutorIdleSince(InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // slot / resource counts
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Get the total registered resources.
+ *
+ * @return the total registered resources
+ */
+ ResourceProfile getTotalRegisteredResources();
+
+ /**
+ * Get the total registered resources of the given task executor
+ *
+ * @param instanceId of the task executor
+ * @return the total registered resources of the given task executor
+ */
+ ResourceProfile getTotalRegisteredResourcesOf(InstanceID instanceId);
Review comment:
The following methods can be aggregated to something like `TMStatus getTMStatus(InstanceID instanceId)`, where `TMStatus` (maybe another name) is a data structure containing all information needed.
- ResourceProfile getTotalRegisteredResourcesOf(InstanceID instanceId)
- ResourceProfile getTotalFreeResourcesOf(InstanceID instanceId)
- int getNumberRegisteredSlotsOf(InstanceID instanceId)
- int getNumberFreeSlotsOf(InstanceID instanceId)
- long getTaskExecutorIdleSince(InstanceID instanceId)
##########
File path: flink-runtime/src/test/java/org/apache/flink/runtime/resourcemanager/slotmanager/TestingTaskExecutorInfo.java
##########
@@ -0,0 +1,100 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+
+public class TestingTaskExecutorInfo implements TaskExecutorInfo {
+ private final ResourceProfile totalResource;
+ private final ResourceProfile availableResource;
+ private final ResourceProfile defaultSlotResourceProfile;
+ private final int numberAllocatedSlots;
+
+ private TestingTaskExecutorInfo(
+ ResourceProfile totalResource,
+ ResourceProfile availableResource,
+ ResourceProfile defaultSlotResourceProfile,
+ int numberAllocatedSlots) {
+ this.totalResource = totalResource;
+ this.availableResource = availableResource;
+ this.defaultSlotResourceProfile = defaultSlotResourceProfile;
+ this.numberAllocatedSlots = numberAllocatedSlots;
+ }
+
+ @Override
+ public ResourceProfile getTotalResource() {
+ return totalResource;
+ }
+
+ @Override
+ public ResourceProfile getDefaultSlotResourceProfile() {
+ return defaultSlotResourceProfile;
+ }
+
+ @Override
+ public ResourceProfile getAvailableResource() {
+ return availableResource;
+ }
+
+ @Override
+ public int getNumberAllocatedSlots() {
+ return numberAllocatedSlots;
+ }
+
+ public static Builder newBuilder() {
+ return new Builder();
+ }
+
+ public static class Builder {
+ private ResourceProfile totalResource = ResourceProfile.ANY;
+ private ResourceProfile availableResource = ResourceProfile.ANY;
+ private ResourceProfile defaultSlotResourceProfile = ResourceProfile.ANY;
+ private int numberAllocatedSlots = 0;
+
+ private Builder() {};
+
+ public Builder withTotalResource(ResourceProfile totalResource) {
+ this.totalResource = totalResource;
+ return this;
+ }
+
+ public Builder withAvailableResource(ResourceProfile availableResource) {
+ this.availableResource = availableResource;
+ return this;
+ }
+
+ public Builder withDefaultSlotResourceProfile(ResourceProfile defaultSlotResourceProfile) {
+ this.defaultSlotResourceProfile = defaultSlotResourceProfile;
+ return this;
+ }
+
+ public Builder withNumberAllocatedSlots(int numberAllocatedSlots) {
+ this.numberAllocatedSlots = numberAllocatedSlots;
+ return this;
+ }
Review comment:
Better to add sanity checks for the setters:
- non-null
- available <= total
- default <= total
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/SlotStatusUpdateListener.java
##########
@@ -42,4 +45,24 @@
*/
void notifySlotStatusChange(
TaskManagerSlotInformation slot, SlotState previous, SlotState current, JobID jobId);
+
+ class MultiSlotStatusUpdateListener implements SlotStatusUpdateListener {
Review comment:
IIUC, this change is to allow `MultiSlotStatusUpdateListener` to be reused by other classes than `DefaultSlotTracker`.
Then I would suggest to make `MultiSlotStatusUpdateListener` a separate file. An interface does not normally have an inner class that implements itself.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorMatchingStrategy.java
##########
@@ -0,0 +1,41 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+
+import java.util.Map;
+import java.util.Optional;
+
+/** Strategy how to find a matching task executor. */
+public interface TaskExecutorMatchingStrategy {
+
+ /**
+ * Finds a matching task executor for the requested {@link ResourceProfile} given the collection
+ * of task executors.
+ *
+ * @param requirement to find a matching task executor for
+ * @param taskExecutors candidates
+ * @return Returns the instance id of matching task executor or {@link Optional#empty()} if
+ * there is none
+ */
+ Optional<InstanceID> findMatchingTaskExecutor(
+ ResourceProfile requirement, Map<InstanceID, ? extends TaskExecutorInfo> taskExecutors);
Review comment:
Why do we need a map for this interface? We should not need to lookup a `TaskExecutorInfo` by its `InstanceID` in the strategy.
It might be better to include `InstanceID` in `TaskExecutorInfo` and pass in a list or collection.
##########
File path: flink-runtime/src/test/java/org/apache/flink/runtime/resourcemanager/slotmanager/AnyMatchingTaskExecutorMatchingStrategyTest.java
##########
@@ -0,0 +1,85 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.util.TestLogger;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+/** Tests for the {@link AnyMatchingTaskExecutorMatchingStrategy}. */
+public class AnyMatchingTaskExecutorMatchingStrategyTest extends TestLogger {
+ private final InstanceID instanceIdOfLargeTaskExecutor = new InstanceID();
+ private final InstanceID instanceIdOfSmallTaskExecutor = new InstanceID();
+ private final ResourceProfile largeResourceProfile = ResourceProfile.fromResources(10.2, 42);
+ private final ResourceProfile smallResourceProfile = ResourceProfile.fromResources(1, 1);
+ private Map<InstanceID, TaskExecutorInfo> taskExecutors = null;
+ private Set<InstanceID> candidates = null;
+
+ @Before
+ public void setup() {
+ taskExecutors = new HashMap<>();
+ candidates = new HashSet<>();
+ taskExecutors.put(
+ instanceIdOfSmallTaskExecutor,
+ TestingTaskExecutorInfo.newBuilder()
+ .withAvailableResource(smallResourceProfile)
+ .build());
+ taskExecutors.put(
+ instanceIdOfLargeTaskExecutor,
+ TestingTaskExecutorInfo.newBuilder()
+ .withAvailableResource(largeResourceProfile)
+ .build());
Review comment:
Why do we need this `setup()`? We can also make `taskExecutors` a constant.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/DefaultSlotTracker.java
##########
@@ -278,30 +277,4 @@ public void executeStateTransition(DeclarativeTaskManagerSlot slot, JobID jobId)
}
}
}
-
- private static class MultiSlotStatusUpdateListener implements SlotStatusUpdateListener {
Review comment:
This should also be a hotfix commit.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/AnyMatchingTaskExecutorMatchingStrategy.java
##########
@@ -0,0 +1,50 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+
+import java.util.Map;
+import java.util.Optional;
+
+/** {@link TaskExecutorMatchingStrategy} which picks the first matching task executor. */
+public enum AnyMatchingTaskExecutorMatchingStrategy implements TaskExecutorMatchingStrategy {
+ INSTANCE;
+
+ @Override
+ public Optional<InstanceID> findMatchingTaskExecutor(
+ ResourceProfile requirement,
+ Map<InstanceID, ? extends TaskExecutorInfo> taskExecutors) {
+ return taskExecutors.entrySet().stream()
+ .filter(taskExecutor -> canFulfillRequirement(requirement, taskExecutor.getValue()))
+ .findFirst()
Review comment:
`findFirst` -> `findAny`
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/LeastAllocateSlotsTaskExecutorMatchingStrategy.java
##########
@@ -0,0 +1,56 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+
+import java.util.Comparator;
+import java.util.Map;
+import java.util.Optional;
+
+/**
+ * {@link TaskExecutorMatchingStrategy} which picks a matching TaskExecutor with the least number of
+ * allocated slots.
+ */
+public enum LeastAllocateSlotsTaskExecutorMatchingStrategy implements TaskExecutorMatchingStrategy {
Review comment:
I believe this is for the configuration option `cluster.evenly-spread-out-slots`.
However, I'm not sure how we want this feature for the fine-grained resource management, where amount of resource plays a more important role than number of slots.
This may need to revisit how this feature should be exposed, to be compatible for both coarse/fine-grained resource management. Given that this PR is already quite big, I would suggest to not introduce this strategy in this PR, but create a follow-up issue instead.
##########
File path: flink-runtime/src/test/java/org/apache/flink/runtime/resourcemanager/slotmanager/AnyMatchingTaskExecutorMatchingStrategyTest.java
##########
@@ -0,0 +1,85 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.util.TestLogger;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+/** Tests for the {@link AnyMatchingTaskExecutorMatchingStrategy}. */
+public class AnyMatchingTaskExecutorMatchingStrategyTest extends TestLogger {
+ private final InstanceID instanceIdOfLargeTaskExecutor = new InstanceID();
+ private final InstanceID instanceIdOfSmallTaskExecutor = new InstanceID();
+ private final ResourceProfile largeResourceProfile = ResourceProfile.fromResources(10.2, 42);
+ private final ResourceProfile smallResourceProfile = ResourceProfile.fromResources(1, 1);
+ private Map<InstanceID, TaskExecutorInfo> taskExecutors = null;
+ private Set<InstanceID> candidates = null;
Review comment:
Never used.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/taskexecutor/TaskExecutorResourceUtils.java
##########
@@ -134,11 +134,13 @@ public static TaskExecutorResourceSpec resourceSpecFromConfigForLocalExecution(
public static Configuration adjustForLocalExecution(Configuration config) {
UNUSED_CONFIG_OPTIONS.forEach(option -> warnOptionHasNoEffectIfSet(config, option));
- setConfigOptionToPassedMaxIfNotSet(config, TaskManagerOptions.CPU_CORES, Double.MAX_VALUE);
+ setConfigOptionToPassedMaxIfNotSet(config, TaskManagerOptions.CPU_CORES, 1000000.0);
setConfigOptionToPassedMaxIfNotSet(
- config, TaskManagerOptions.TASK_HEAP_MEMORY, MemorySize.MAX_VALUE);
+ config, TaskManagerOptions.TASK_HEAP_MEMORY, MemorySize.ofMebiBytes(1024 * 1024));
setConfigOptionToPassedMaxIfNotSet(
- config, TaskManagerOptions.TASK_OFF_HEAP_MEMORY, MemorySize.MAX_VALUE);
+ config,
+ TaskManagerOptions.TASK_OFF_HEAP_MEMORY,
+ MemorySize.ofMebiBytes(1024 * 1024));
Review comment:
And it would be helpful to explain the purpose of this change in the commit message.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorTracker.java
##########
@@ -0,0 +1,274 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.api.common.JobID;
+import org.apache.flink.api.common.time.Time;
+import org.apache.flink.runtime.clusterframework.types.AllocationID;
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.runtime.resourcemanager.registration.TaskExecutorConnection;
+import org.apache.flink.runtime.taskexecutor.SlotReport;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/** Tracks TaskExecutor's resource and slot status. */
+interface TaskExecutorTracker {
+
+ /**
+ * Registers the given listener with this tracker.
+ *
+ * @param slotStatusUpdateListener listener to register
+ */
+ void registerSlotStatusUpdateListener(SlotStatusUpdateListener slotStatusUpdateListener);
+
+ // ---------------------------------------------------------------------------------------------
+ // Add / Remove (pending) Resource
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Register a new task executor with its initial slot report.
+ *
+ * @param taskExecutorConnection of the new task executor
+ * @param initialSlotReport of the new task executor
+ * @param totalResourceProfile of the new task executor
+ * @param defaultSlotResourceProfile of the new task executor
+ */
+ void addTaskExecutor(
+ TaskExecutorConnection taskExecutorConnection,
+ SlotReport initialSlotReport,
+ ResourceProfile totalResourceProfile,
+ ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Add a new pending task executor with its resource profile.
+ *
+ * @param totalResourceProfile of the pending task executor
+ * @param defaultSlotResourceProfile of the pending task executor
+ */
+ void addPendingTaskExecutor(
+ ResourceProfile totalResourceProfile, ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Unregister a task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ */
+ void removeTaskExecutor(InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Slot status updates
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Find a task executor to fulfill the given resource requirement.
+ *
+ * @param resourceProfile of the given requirement
+ * @param taskExecutorMatchingStrategy to use
+ * @return An Optional of {@link TaskExecutorConnection}, if find, of the matching task
+ * executor.
+ */
+ Optional<TaskExecutorConnection> findTaskExecutorToFulfill(
+ ResourceProfile resourceProfile,
+ TaskExecutorMatchingStrategy taskExecutorMatchingStrategy);
+
+ /**
+ * Notify the allocation of the given slot is started.
+ *
+ * @param allocationId of the allocated slot
+ * @param jobId of the allocated slot
+ * @param instanceId of the located task executor
+ * @param requiredResource of the allocated slot
+ */
+ void notifyAllocationStart(
+ AllocationID allocationId,
+ JobID jobId,
+ InstanceID instanceId,
+ ResourceProfile requiredResource);
+
+ /**
+ * Notify the allocation of the given slot is completed.
+ *
+ * @param instanceId of the located task executor
+ * @param allocationId of the allocated slot
+ */
+ void notifyAllocationComplete(InstanceID instanceId, AllocationID allocationId);
+
+ /**
+ * Notify the given allocated slot is free.
+ *
+ * @param allocationId of the allocated slot
+ */
+ void notifyFree(AllocationID allocationId);
+
+ /**
+ * Notifies the tracker about the slot statuses.
+ *
+ * @param slotReport slot report
+ * @param instanceId of the task executor
+ */
+ void notifySlotStatus(SlotReport slotReport, InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Utility method
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Get the instance ids of all registered task executors.
+ *
+ * @return a set of instance ids of all registered task executors.
+ */
+ Set<InstanceID> getTaskExecutors();
+
+ /**
+ * Check if there is a registered task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ * @return whether there is a registered task executor with the given instance id
+ */
+ boolean isTaskExecutorRegistered(InstanceID instanceId);
+
+ /**
+ * Find an exactly matching pending task executor with the given resource profile.
+ *
+ * @param initialSlotReport of the task executor
+ * @param totalResourceProfile of the task executor
+ * @param defaultResourceProfile of the task executor
+ * @return An Optional of {@link PendingTaskManager}, if find, of the matching pending task
+ * executor.
+ */
+ Optional<PendingTaskManager> findMatchingPendingTaskManager(
Review comment:
This method should not belong to this interface.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/WorkerResourceSpec.java
##########
@@ -70,6 +71,16 @@ public static WorkerResourceSpec fromTaskExecutorProcessSpec(
taskExecutorProcessSpec.getManagedMemorySize());
}
+ public static WorkerResourceSpec fromResourceProfile(final ResourceProfile resourceProfile) {
Review comment:
Again, should explain the purpose of this change in the commit message?
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorMatchingStrategy.java
##########
@@ -0,0 +1,41 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+
+import java.util.Map;
+import java.util.Optional;
+
+/** Strategy how to find a matching task executor. */
+public interface TaskExecutorMatchingStrategy {
Review comment:
I would suggest `SlotTaskExecutorMatchingStrategy` to suggest that the strategy is for matching between a slot and a TM rather than two TMs.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/AnyMatchingTaskExecutorMatchingStrategy.java
##########
@@ -0,0 +1,50 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+
+import java.util.Map;
+import java.util.Optional;
+
+/** {@link TaskExecutorMatchingStrategy} which picks the first matching task executor. */
+public enum AnyMatchingTaskExecutorMatchingStrategy implements TaskExecutorMatchingStrategy {
Review comment:
JavaDoc: first -> any
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorTracker.java
##########
@@ -0,0 +1,274 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.api.common.JobID;
+import org.apache.flink.api.common.time.Time;
+import org.apache.flink.runtime.clusterframework.types.AllocationID;
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.runtime.resourcemanager.registration.TaskExecutorConnection;
+import org.apache.flink.runtime.taskexecutor.SlotReport;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/** Tracks TaskExecutor's resource and slot status. */
+interface TaskExecutorTracker {
+
+ /**
+ * Registers the given listener with this tracker.
+ *
+ * @param slotStatusUpdateListener listener to register
+ */
+ void registerSlotStatusUpdateListener(SlotStatusUpdateListener slotStatusUpdateListener);
+
+ // ---------------------------------------------------------------------------------------------
+ // Add / Remove (pending) Resource
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Register a new task executor with its initial slot report.
+ *
+ * @param taskExecutorConnection of the new task executor
+ * @param initialSlotReport of the new task executor
+ * @param totalResourceProfile of the new task executor
+ * @param defaultSlotResourceProfile of the new task executor
+ */
+ void addTaskExecutor(
+ TaskExecutorConnection taskExecutorConnection,
+ SlotReport initialSlotReport,
+ ResourceProfile totalResourceProfile,
+ ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Add a new pending task executor with its resource profile.
+ *
+ * @param totalResourceProfile of the pending task executor
+ * @param defaultSlotResourceProfile of the pending task executor
+ */
+ void addPendingTaskExecutor(
+ ResourceProfile totalResourceProfile, ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Unregister a task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ */
+ void removeTaskExecutor(InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Slot status updates
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Find a task executor to fulfill the given resource requirement.
+ *
+ * @param resourceProfile of the given requirement
+ * @param taskExecutorMatchingStrategy to use
+ * @return An Optional of {@link TaskExecutorConnection}, if find, of the matching task
+ * executor.
+ */
+ Optional<TaskExecutorConnection> findTaskExecutorToFulfill(
+ ResourceProfile resourceProfile,
+ TaskExecutorMatchingStrategy taskExecutorMatchingStrategy);
+
+ /**
+ * Notify the allocation of the given slot is started.
+ *
+ * @param allocationId of the allocated slot
+ * @param jobId of the allocated slot
+ * @param instanceId of the located task executor
+ * @param requiredResource of the allocated slot
+ */
+ void notifyAllocationStart(
+ AllocationID allocationId,
+ JobID jobId,
+ InstanceID instanceId,
+ ResourceProfile requiredResource);
+
+ /**
+ * Notify the allocation of the given slot is completed.
+ *
+ * @param instanceId of the located task executor
+ * @param allocationId of the allocated slot
+ */
+ void notifyAllocationComplete(InstanceID instanceId, AllocationID allocationId);
+
+ /**
+ * Notify the given allocated slot is free.
+ *
+ * @param allocationId of the allocated slot
+ */
+ void notifyFree(AllocationID allocationId);
+
+ /**
+ * Notifies the tracker about the slot statuses.
+ *
+ * @param slotReport slot report
+ * @param instanceId of the task executor
+ */
+ void notifySlotStatus(SlotReport slotReport, InstanceID instanceId);
Review comment:
The slot status synchronization logics are a bit too complicate to be included in this interface. Might be better to have a dedicated slot status synchronizer. The synchronizer can take slot manager actions (allocate, free), received slot reports, and the current status as inputs, and notify the `TaskExecutorTracker` and `SlotStatusUpdateListener` as output.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/WorkerResourceSpec.java
##########
@@ -70,6 +71,16 @@ public static WorkerResourceSpec fromTaskExecutorProcessSpec(
taskExecutorProcessSpec.getManagedMemorySize());
}
+ public static WorkerResourceSpec fromResourceProfile(final ResourceProfile resourceProfile) {
Review comment:
To avoid confusion against slot resource profile.
```suggestion
public static WorkerResourceSpec fromTotalResourceProfile(final ResourceProfile totalResourceProfile) {
```
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorTracker.java
##########
@@ -0,0 +1,274 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.api.common.JobID;
+import org.apache.flink.api.common.time.Time;
+import org.apache.flink.runtime.clusterframework.types.AllocationID;
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.runtime.resourcemanager.registration.TaskExecutorConnection;
+import org.apache.flink.runtime.taskexecutor.SlotReport;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/** Tracks TaskExecutor's resource and slot status. */
+interface TaskExecutorTracker {
+
+ /**
+ * Registers the given listener with this tracker.
+ *
+ * @param slotStatusUpdateListener listener to register
+ */
+ void registerSlotStatusUpdateListener(SlotStatusUpdateListener slotStatusUpdateListener);
+
+ // ---------------------------------------------------------------------------------------------
+ // Add / Remove (pending) Resource
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Register a new task executor with its initial slot report.
+ *
+ * @param taskExecutorConnection of the new task executor
+ * @param initialSlotReport of the new task executor
+ * @param totalResourceProfile of the new task executor
+ * @param defaultSlotResourceProfile of the new task executor
+ */
+ void addTaskExecutor(
+ TaskExecutorConnection taskExecutorConnection,
+ SlotReport initialSlotReport,
+ ResourceProfile totalResourceProfile,
+ ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Add a new pending task executor with its resource profile.
+ *
+ * @param totalResourceProfile of the pending task executor
+ * @param defaultSlotResourceProfile of the pending task executor
+ */
+ void addPendingTaskExecutor(
+ ResourceProfile totalResourceProfile, ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Unregister a task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ */
+ void removeTaskExecutor(InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Slot status updates
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Find a task executor to fulfill the given resource requirement.
+ *
+ * @param resourceProfile of the given requirement
+ * @param taskExecutorMatchingStrategy to use
+ * @return An Optional of {@link TaskExecutorConnection}, if find, of the matching task
+ * executor.
+ */
+ Optional<TaskExecutorConnection> findTaskExecutorToFulfill(
+ ResourceProfile resourceProfile,
+ TaskExecutorMatchingStrategy taskExecutorMatchingStrategy);
+
+ /**
+ * Notify the allocation of the given slot is started.
+ *
+ * @param allocationId of the allocated slot
+ * @param jobId of the allocated slot
+ * @param instanceId of the located task executor
+ * @param requiredResource of the allocated slot
+ */
+ void notifyAllocationStart(
+ AllocationID allocationId,
+ JobID jobId,
+ InstanceID instanceId,
+ ResourceProfile requiredResource);
+
+ /**
+ * Notify the allocation of the given slot is completed.
+ *
+ * @param instanceId of the located task executor
+ * @param allocationId of the allocated slot
+ */
+ void notifyAllocationComplete(InstanceID instanceId, AllocationID allocationId);
+
+ /**
+ * Notify the given allocated slot is free.
+ *
+ * @param allocationId of the allocated slot
+ */
+ void notifyFree(AllocationID allocationId);
+
+ /**
+ * Notifies the tracker about the slot statuses.
+ *
+ * @param slotReport slot report
+ * @param instanceId of the task executor
+ */
+ void notifySlotStatus(SlotReport slotReport, InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Utility method
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Get the instance ids of all registered task executors.
+ *
+ * @return a set of instance ids of all registered task executors.
+ */
+ Set<InstanceID> getTaskExecutors();
Review comment:
Maybe return a collection of `TMInfo` rather than only `InstanceID`s.
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskManagerSlotInformation.java
##########
@@ -28,6 +30,10 @@
SlotID getSlotId();
+ AllocationID getAllocationId();
+
+ JobID getJobId();
Review comment:
And this looks like a pure minor refactor. Shouldn't it be a hotfix commit?
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorTracker.java
##########
@@ -0,0 +1,274 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.api.common.JobID;
+import org.apache.flink.api.common.time.Time;
+import org.apache.flink.runtime.clusterframework.types.AllocationID;
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+import org.apache.flink.runtime.resourcemanager.registration.TaskExecutorConnection;
+import org.apache.flink.runtime.taskexecutor.SlotReport;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+
+/** Tracks TaskExecutor's resource and slot status. */
+interface TaskExecutorTracker {
+
+ /**
+ * Registers the given listener with this tracker.
+ *
+ * @param slotStatusUpdateListener listener to register
+ */
+ void registerSlotStatusUpdateListener(SlotStatusUpdateListener slotStatusUpdateListener);
+
+ // ---------------------------------------------------------------------------------------------
+ // Add / Remove (pending) Resource
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Register a new task executor with its initial slot report.
+ *
+ * @param taskExecutorConnection of the new task executor
+ * @param initialSlotReport of the new task executor
+ * @param totalResourceProfile of the new task executor
+ * @param defaultSlotResourceProfile of the new task executor
+ */
+ void addTaskExecutor(
+ TaskExecutorConnection taskExecutorConnection,
+ SlotReport initialSlotReport,
+ ResourceProfile totalResourceProfile,
+ ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Add a new pending task executor with its resource profile.
+ *
+ * @param totalResourceProfile of the pending task executor
+ * @param defaultSlotResourceProfile of the pending task executor
+ */
+ void addPendingTaskExecutor(
+ ResourceProfile totalResourceProfile, ResourceProfile defaultSlotResourceProfile);
+
+ /**
+ * Unregister a task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ */
+ void removeTaskExecutor(InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Slot status updates
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Find a task executor to fulfill the given resource requirement.
+ *
+ * @param resourceProfile of the given requirement
+ * @param taskExecutorMatchingStrategy to use
+ * @return An Optional of {@link TaskExecutorConnection}, if find, of the matching task
+ * executor.
+ */
+ Optional<TaskExecutorConnection> findTaskExecutorToFulfill(
+ ResourceProfile resourceProfile,
+ TaskExecutorMatchingStrategy taskExecutorMatchingStrategy);
+
+ /**
+ * Notify the allocation of the given slot is started.
+ *
+ * @param allocationId of the allocated slot
+ * @param jobId of the allocated slot
+ * @param instanceId of the located task executor
+ * @param requiredResource of the allocated slot
+ */
+ void notifyAllocationStart(
+ AllocationID allocationId,
+ JobID jobId,
+ InstanceID instanceId,
+ ResourceProfile requiredResource);
+
+ /**
+ * Notify the allocation of the given slot is completed.
+ *
+ * @param instanceId of the located task executor
+ * @param allocationId of the allocated slot
+ */
+ void notifyAllocationComplete(InstanceID instanceId, AllocationID allocationId);
+
+ /**
+ * Notify the given allocated slot is free.
+ *
+ * @param allocationId of the allocated slot
+ */
+ void notifyFree(AllocationID allocationId);
+
+ /**
+ * Notifies the tracker about the slot statuses.
+ *
+ * @param slotReport slot report
+ * @param instanceId of the task executor
+ */
+ void notifySlotStatus(SlotReport slotReport, InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // Utility method
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Get the instance ids of all registered task executors.
+ *
+ * @return a set of instance ids of all registered task executors.
+ */
+ Set<InstanceID> getTaskExecutors();
+
+ /**
+ * Check if there is a registered task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ * @return whether there is a registered task executor with the given instance id
+ */
+ boolean isTaskExecutorRegistered(InstanceID instanceId);
+
+ /**
+ * Find an exactly matching pending task executor with the given resource profile.
+ *
+ * @param initialSlotReport of the task executor
+ * @param totalResourceProfile of the task executor
+ * @param defaultResourceProfile of the task executor
+ * @return An Optional of {@link PendingTaskManager}, if find, of the matching pending task
+ * executor.
+ */
+ Optional<PendingTaskManager> findMatchingPendingTaskManager(
+ SlotReport initialSlotReport,
+ ResourceProfile totalResourceProfile,
+ ResourceProfile defaultResourceProfile);
+
+ // ---------------------------------------------------------------------------------------------
+ // TaskExecutor idleness / redundancy
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Get all task executors which idle exceed the given timeout period
+ *
+ * @param taskManagerTimeout timeout period
+ * @return a map of timeout task executors' connection index by the instance id
+ */
+ Map<InstanceID, TaskExecutorConnection> getTimeOutTaskExecutors(Time taskManagerTimeout);
+
+ /**
+ * Get the start time of idleness of the task executor with the given instance id.
+ *
+ * @param instanceId of the task executor
+ * @return the start time of idleness
+ */
+ long getTaskExecutorIdleSince(InstanceID instanceId);
+
+ // ---------------------------------------------------------------------------------------------
+ // slot / resource counts
+ // ---------------------------------------------------------------------------------------------
+
+ /**
+ * Get the total registered resources.
+ *
+ * @return the total registered resources
+ */
+ ResourceProfile getTotalRegisteredResources();
Review comment:
The following methods can be aggregated to something like `StatusOverview getStatusOverview()`, where `StatusOverview` (maybe another name) is a data structure containing all information needed.
- ResourceProfile getTotalRegisteredResources()
- ResourceProfile getTotalFreeResources()
- int getNumberRegisteredSlots()
- int getNumberFreeSlots()
- int getNumberFreeTaskExecutors()
- int getNumberRegisteredTaskExecutors()
- int getNumberPendingTaskExecutors();
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/resourcemanager/slotmanager/TaskExecutorMatchingStrategy.java
##########
@@ -0,0 +1,41 @@
+/*
+ * 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.resourcemanager.slotmanager;
+
+import org.apache.flink.runtime.clusterframework.types.ResourceProfile;
+import org.apache.flink.runtime.instance.InstanceID;
+
+import java.util.Map;
+import java.util.Optional;
+
+/** Strategy how to find a matching task executor. */
+public interface TaskExecutorMatchingStrategy {
Review comment:
Moreover, the latest glossary no longer use the term `TaskExecutor`.
It's not necessary to change the existing codes, but introducing new codes I would suggest to replace `TaskExecutor` with `TaskManager`.
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