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https://issues.apache.org/jira/browse/FLINK-10431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16663516#comment-16663516
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ASF GitHub Bot commented on FLINK-10431:
----------------------------------------
tillrohrmann commented on a change in pull request #6898: [FLINK-10431]
Extraction of scheduling-related code from SlotPool into preliminary Scheduler
URL: https://github.com/apache/flink/pull/6898#discussion_r228105123
##########
File path:
flink-runtime/src/test/java/org/apache/flink/runtime/jobmaster/slotpool/TestMainThreadExecutor.java
##########
@@ -0,0 +1,58 @@
+/*
+ * 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.jobmaster.slotpool;
+
+import org.apache.flink.api.common.time.Time;
+import org.apache.flink.runtime.rpc.MainThreadExecutable;
+
+import java.util.concurrent.Callable;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+
+public class TestMainThreadExecutor implements MainThreadExecutable {
+
+ private final ScheduledExecutorService scheduledExecutor;
+
+ public TestMainThreadExecutor(ScheduledExecutorService
scheduledExecutor) {
+ this.scheduledExecutor = scheduledExecutor;
+ }
+
+ public TestMainThreadExecutor() {
+ this(Executors.newSingleThreadScheduledExecutor());
Review comment:
Shouldn't this class be an `ExecutorService` to close the created `Executor`
properly? Otherwise we might run into problems when running tests using this
`TestMainThreadExecutor` in a loop, for example.
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> Extract scheduling-related code from SlotPool
> ---------------------------------------------
>
> Key: FLINK-10431
> URL: https://issues.apache.org/jira/browse/FLINK-10431
> Project: Flink
> Issue Type: Sub-task
> Components: Distributed Coordination
> Affects Versions: 1.7.0
> Reporter: Stefan Richter
> Assignee: Stefan Richter
> Priority: Major
> Labels: pull-request-available
>
> The other half of the current scheduling logic is the management of slot
> sharing and is located in the SlotPool. We need to extract this logic into
> our new Scheduler component from the previous step. This leaves us with a
> simpler SlotPool that mainly cares about obtaining, holding, and releasing
> slots in interaction with a ResourceManager. The new Scheduler can now
> identify slot sharing groups and interacts with the SlotPool.
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