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https://issues.apache.org/jira/browse/FLINK-2111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15033690#comment-15033690
]
ASF GitHub Bot commented on FLINK-2111:
---------------------------------------
Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/750#discussion_r46278355
--- Diff:
flink-runtime/src/test/java/org/apache/flink/runtime/executiongraph/ExecutionVertexStopTest.java
---
@@ -0,0 +1,138 @@
+/*
+ * 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.executiongraph;
+
+import org.apache.flink.api.common.JobID;
+import org.apache.flink.runtime.akka.AkkaUtils;
+import org.apache.flink.runtime.execution.ExecutionState;
+import org.apache.flink.runtime.instance.ActorGateway;
+import org.apache.flink.runtime.instance.BaseTestingActorGateway;
+import org.apache.flink.runtime.instance.Instance;
+import org.apache.flink.runtime.instance.SimpleSlot;
+import org.apache.flink.runtime.jobgraph.JobVertexID;
+import org.apache.flink.runtime.messages.Messages;
+import org.apache.flink.runtime.messages.TaskMessages;
+import org.apache.flink.runtime.messages.TaskMessages.TaskOperationResult;
+import org.apache.flink.runtime.testingUtils.TestingUtils;
+import org.junit.AfterClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import org.powermock.modules.junit4.PowerMockRunner;
+
+import akka.actor.ActorSystem;
+import akka.testkit.JavaTestKit;
+import scala.concurrent.ExecutionContext;
+import static
org.apache.flink.runtime.executiongraph.ExecutionGraphTestUtils.setVertexState;
+import static
org.apache.flink.runtime.executiongraph.ExecutionGraphTestUtils.getExecutionVertex;
+import static
org.apache.flink.runtime.executiongraph.ExecutionGraphTestUtils.getInstance;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.powermock.api.mockito.PowerMockito.whenNew;
+
+@RunWith(PowerMockRunner.class)
+@PrepareForTest(ExecutionVertex.class)
+public class ExecutionVertexStopTest {
+
+ @Test
+ public void testStop() throws Exception {
+ final JobVertexID jid = new JobVertexID();
+ final ExecutionJobVertex ejv = getExecutionVertex(jid);
+
+ Execution executionMock = mock(Execution.class);
+
whenNew(Execution.class).withAnyArguments().thenReturn(executionMock);
+
+ final ExecutionVertex vertex = new ExecutionVertex(ejv, 0, new
IntermediateResult[0],
+ AkkaUtils.getDefaultTimeout());
+
+ vertex.stop();
+
+ verify(executionMock).stop();
+ }
+
+ private static ActorSystem system;
+
+ @AfterClass
+ public static void teardown(){
+ if(system != null) {
+ JavaTestKit.shutdownActorSystem(system);
+ system = null;
+ }
+ }
+
+ static boolean receivedStopSignal;
--- End diff --
Usually it's common practice in Flink's code base to put the static fields
at the very beginning of the class definition.
> Add "stop" signal to cleanly shutdown streaming jobs
> ----------------------------------------------------
>
> Key: FLINK-2111
> URL: https://issues.apache.org/jira/browse/FLINK-2111
> Project: Flink
> Issue Type: Improvement
> Components: Distributed Runtime, JobManager, Local Runtime,
> Streaming, TaskManager, Webfrontend
> Reporter: Matthias J. Sax
> Assignee: Matthias J. Sax
> Priority: Minor
>
> Currently, streaming jobs can only be stopped using "cancel" command, what is
> a "hard" stop with no clean shutdown.
> The new introduced "stop" signal, will only affect streaming source tasks
> such that the sources can stop emitting data and shutdown cleanly, resulting
> in a clean shutdown of the whole streaming job.
> This feature is a pre-requirment for
> https://issues.apache.org/jira/browse/FLINK-1929
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