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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2021/10/14 07:05:09 UTC

[GitHub] [flink] dawidwys opened a new pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

dawidwys opened a new pull request #17471:
URL: https://github.com/apache/flink/pull/17471


   ## What is the purpose of the change
   The goal is to fix the possibility to disable buffer timeout for pipelined exchanges. It has been broken in #13209, which was supposed to add a check that buffer timeout is properly configured if blocking exchanges are present in the graph.
   
   
   ## Brief change log
   
   * treat -1 again as a valid configuration instead of `UNDEFINED`
   * it disables the automatic disabling of buffer timeout for blocking exchanges
   
   ## Verifying this change
   
   Tests in `StreamingJobGraphGeneratorTest` work. I also added `org.apache.flink.streaming.api.graph.StreamingJobGraphGeneratorTest#testDisablingBufferTimeoutWithPipelinedExchanges` to verify we can disable buffer timeout for pipelined exchanges.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (yes / **no**)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**)
     - The serializers: (yes / **no** / don't know)
     - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (yes / **no** / don't know)
     - The S3 file system connector: (yes / **no** / don't know)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (yes / **no**)
     - If yes, how is the feature documented? (**not applicable** / docs / JavaDocs / not documented)
   


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot commented on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943074270


   Thanks a lot for your contribution to the Apache Flink project. I'm the @flinkbot. I help the community
   to review your pull request. We will use this comment to track the progress of the review.
   
   
   ## Automated Checks
   Last check on commit 3842c4a4e68ce1c61caca8d7ee21023572a55858 (Thu Oct 14 07:07:32 UTC 2021)
   
   **Warnings:**
    * No documentation files were touched! Remember to keep the Flink docs up to date!
    * **This pull request references an unassigned [Jira ticket](https://issues.apache.org/jira/browse/FLINK-24465).** According to the [code contribution guide](https://flink.apache.org/contributing/contribute-code.html), tickets need to be assigned before starting with the implementation work.
   
   
   <sub>Mention the bot in a comment to re-run the automated checks.</sub>
   ## Review Progress
   
   * ❓ 1. The [description] looks good.
   * ❓ 2. There is [consensus] that the contribution should go into to Flink.
   * ❓ 3. Needs [attention] from.
   * ❓ 4. The change fits into the overall [architecture].
   * ❓ 5. Overall code [quality] is good.
   
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[GitHub] [flink] pnowojski commented on a change in pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
pnowojski commented on a change in pull request #17471:
URL: https://github.com/apache/flink/pull/17471#discussion_r728984824



##########
File path: flink-tests/src/test/java/org/apache/flink/test/streaming/runtime/BufferTimeoutITCase.java
##########
@@ -0,0 +1,87 @@
+/*
+ * 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.test.streaming.runtime;
+
+import org.apache.flink.configuration.ExecutionOptions;
+import org.apache.flink.core.execution.JobClient;
+import org.apache.flink.runtime.testutils.CommonTestUtils;
+import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+import org.apache.flink.streaming.api.functions.sink.SinkFunction;
+import org.apache.flink.streaming.api.functions.source.SourceFunction;
+import org.apache.flink.test.util.AbstractTestBase;
+import org.apache.flink.testutils.junit.SharedObjects;
+import org.apache.flink.testutils.junit.SharedReference;
+
+import org.junit.Rule;
+import org.junit.Test;
+
+import java.util.ArrayList;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+/** Tests for {@link StreamExecutionEnvironment#setBufferTimeout(long)}. */
+public class BufferTimeoutITCase extends AbstractTestBase {
+
+    @Rule public final SharedObjects sharedObjects = SharedObjects.create();
+
+    /**
+     * The test verifies that it is possible to disable buffer flushing. It emits a single record,
+     * which should not fill an entire buffer, thus it should not never reach the sink. We check the
+     * sink has not seen any records after 2 times the default buffer timeout.
+     */
+    @Test
+    public void testDisablingBufferTimeout() throws Exception {
+        final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
+        env.setParallelism(1);
+        env.setBufferTimeout(-1);
+        final SharedReference<ArrayList<Integer>> results = sharedObjects.add(new ArrayList<>());
+
+        env.addSource(
+                        new SourceFunction<Integer>() {
+
+                            @Override
+                            public void run(SourceContext<Integer> ctx) throws Exception {
+                                ctx.collect(1);
+                                // just sleep forever
+                                Thread.sleep(Long.MAX_VALUE);
+                            }
+
+                            @Override
+                            public void cancel() {}
+                        })
+                .slotSharingGroup("source")
+                .addSink(
+                        new SinkFunction<Integer>() {
+
+                            @Override
+                            public void invoke(Integer value, Context context) throws Exception {
+                                results.get().add(value);
+                            }
+                        })
+                .slotSharingGroup("sink");
+
+        final JobClient jobClient = env.executeAsync();
+        CommonTestUtils.waitForAllTaskRunning(
+                miniClusterResource.getMiniCluster(), jobClient.getJobID(), false);
+
+        Thread.sleep(2 * ExecutionOptions.BUFFER_TIMEOUT.defaultValue().toMillis());
+        assertThat(results.get().size(), equalTo(0));

Review comment:
       Shouldn't we cancel/close the job?




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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] dawidwys closed pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
dawidwys closed pull request #17471:
URL: https://github.com/apache/flink/pull/17471


   


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] pnowojski commented on a change in pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
pnowojski commented on a change in pull request #17471:
URL: https://github.com/apache/flink/pull/17471#discussion_r729026826



##########
File path: flink-tests/src/test/java/org/apache/flink/test/streaming/runtime/BufferTimeoutITCase.java
##########
@@ -0,0 +1,87 @@
+/*
+ * 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.test.streaming.runtime;
+
+import org.apache.flink.configuration.ExecutionOptions;
+import org.apache.flink.core.execution.JobClient;
+import org.apache.flink.runtime.testutils.CommonTestUtils;
+import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+import org.apache.flink.streaming.api.functions.sink.SinkFunction;
+import org.apache.flink.streaming.api.functions.source.SourceFunction;
+import org.apache.flink.test.util.AbstractTestBase;
+import org.apache.flink.testutils.junit.SharedObjects;
+import org.apache.flink.testutils.junit.SharedReference;
+
+import org.junit.Rule;
+import org.junit.Test;
+
+import java.util.ArrayList;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+/** Tests for {@link StreamExecutionEnvironment#setBufferTimeout(long)}. */
+public class BufferTimeoutITCase extends AbstractTestBase {
+
+    @Rule public final SharedObjects sharedObjects = SharedObjects.create();
+
+    /**
+     * The test verifies that it is possible to disable buffer flushing. It emits a single record,
+     * which should not fill an entire buffer, thus it should not never reach the sink. We check the
+     * sink has not seen any records after 2 times the default buffer timeout.
+     */
+    @Test
+    public void testDisablingBufferTimeout() throws Exception {
+        final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
+        env.setParallelism(1);
+        env.setBufferTimeout(-1);
+        final SharedReference<ArrayList<Integer>> results = sharedObjects.add(new ArrayList<>());
+
+        env.addSource(
+                        new SourceFunction<Integer>() {
+
+                            @Override
+                            public void run(SourceContext<Integer> ctx) throws Exception {
+                                ctx.collect(1);
+                                // just sleep forever
+                                Thread.sleep(Long.MAX_VALUE);
+                            }
+
+                            @Override
+                            public void cancel() {}
+                        })
+                .slotSharingGroup("source")
+                .addSink(
+                        new SinkFunction<Integer>() {
+
+                            @Override
+                            public void invoke(Integer value, Context context) throws Exception {
+                                results.get().add(value);
+                            }
+                        })
+                .slotSharingGroup("sink");
+
+        final JobClient jobClient = env.executeAsync();
+        CommonTestUtils.waitForAllTaskRunning(
+                miniClusterResource.getMiniCluster(), jobClient.getJobID(), false);
+
+        Thread.sleep(2 * ExecutionOptions.BUFFER_TIMEOUT.defaultValue().toMillis());
+        assertThat(results.get().size(), equalTo(0));

Review comment:
       Thanks for the explanation, I did not know/remember about `AbstractTestBase`




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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] dawidwys commented on a change in pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
dawidwys commented on a change in pull request #17471:
URL: https://github.com/apache/flink/pull/17471#discussion_r728988282



##########
File path: flink-tests/src/test/java/org/apache/flink/test/streaming/runtime/BufferTimeoutITCase.java
##########
@@ -0,0 +1,87 @@
+/*
+ * 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.test.streaming.runtime;
+
+import org.apache.flink.configuration.ExecutionOptions;
+import org.apache.flink.core.execution.JobClient;
+import org.apache.flink.runtime.testutils.CommonTestUtils;
+import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+import org.apache.flink.streaming.api.functions.sink.SinkFunction;
+import org.apache.flink.streaming.api.functions.source.SourceFunction;
+import org.apache.flink.test.util.AbstractTestBase;
+import org.apache.flink.testutils.junit.SharedObjects;
+import org.apache.flink.testutils.junit.SharedReference;
+
+import org.junit.Rule;
+import org.junit.Test;
+
+import java.util.ArrayList;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+/** Tests for {@link StreamExecutionEnvironment#setBufferTimeout(long)}. */
+public class BufferTimeoutITCase extends AbstractTestBase {
+
+    @Rule public final SharedObjects sharedObjects = SharedObjects.create();
+
+    /**
+     * The test verifies that it is possible to disable buffer flushing. It emits a single record,
+     * which should not fill an entire buffer, thus it should not never reach the sink. We check the
+     * sink has not seen any records after 2 times the default buffer timeout.
+     */
+    @Test
+    public void testDisablingBufferTimeout() throws Exception {
+        final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
+        env.setParallelism(1);
+        env.setBufferTimeout(-1);
+        final SharedReference<ArrayList<Integer>> results = sharedObjects.add(new ArrayList<>());
+
+        env.addSource(
+                        new SourceFunction<Integer>() {
+
+                            @Override
+                            public void run(SourceContext<Integer> ctx) throws Exception {
+                                ctx.collect(1);
+                                // just sleep forever
+                                Thread.sleep(Long.MAX_VALUE);
+                            }
+
+                            @Override
+                            public void cancel() {}
+                        })
+                .slotSharingGroup("source")
+                .addSink(
+                        new SinkFunction<Integer>() {
+
+                            @Override
+                            public void invoke(Integer value, Context context) throws Exception {
+                                results.get().add(value);
+                            }
+                        })
+                .slotSharingGroup("sink");
+
+        final JobClient jobClient = env.executeAsync();
+        CommonTestUtils.waitForAllTaskRunning(
+                miniClusterResource.getMiniCluster(), jobClient.getJobID(), false);
+
+        Thread.sleep(2 * ExecutionOptions.BUFFER_TIMEOUT.defaultValue().toMillis());
+        assertThat(results.get().size(), equalTo(0));

Review comment:
       1. A job will be cancelled in `AbstractTestBase#cleanupRunningJobs`
   2. If 1. fails (which it should not), as there is a single test (so far) the job will be brought down along with the cluster at the end.




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[GitHub] [flink] dawidwys commented on a change in pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
dawidwys commented on a change in pull request #17471:
URL: https://github.com/apache/flink/pull/17471#discussion_r729026251



##########
File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/graph/StreamingJobGraphGenerator.java
##########
@@ -105,9 +105,7 @@
 
     private static final Logger LOG = LoggerFactory.getLogger(StreamingJobGraphGenerator.class);
 
-    private static final long DEFAULT_NETWORK_BUFFER_TIMEOUT = 100L;
-
-    public static final long UNDEFINED_NETWORK_BUFFER_TIMEOUT = -1L;
+    public static final long DISABLED_NETWORK_BUFFER_TIMEOUT = -1L;

Review comment:
       I think it's a good idea to move it to one of the `Options` classes. I moved it to the `ExecutionOptions` where the corresponding `ExecutionOptions#BUFFER_TIMEOUT` is defined.




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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] pnowojski commented on a change in pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
pnowojski commented on a change in pull request #17471:
URL: https://github.com/apache/flink/pull/17471#discussion_r728699504



##########
File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/graph/StreamingJobGraphGenerator.java
##########
@@ -105,9 +105,7 @@
 
     private static final Logger LOG = LoggerFactory.getLogger(StreamingJobGraphGenerator.class);
 
-    private static final long DEFAULT_NETWORK_BUFFER_TIMEOUT = 100L;
-
-    public static final long UNDEFINED_NETWORK_BUFFER_TIMEOUT = -1L;
+    public static final long DISABLED_NETWORK_BUFFER_TIMEOUT = -1L;

Review comment:
       Since you are already touching/modifing this, I would define this constant in `RecordWriter` and use it there as well.

##########
File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/environment/StreamExecutionEnvironment.java
##########
@@ -176,7 +176,7 @@
 

Review comment:
       Can you copy paste PR description to the commit message?
   ```
   The goal is to fix the possibility to disable buffer timeout for pipelined exchanges. It has been broken in #13209, which was supposed to add a check that buffer timeout is properly configured if blocking exchanges are present in the graph.
   
   Brief change log
   treat -1 again as a valid configuration instead of UNDEFINED
   it disables the automatic disabling of buffer timeout for blocking exchanges
   ```

##########
File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/graph/StreamingJobGraphGenerator.java
##########
@@ -105,9 +105,7 @@
 
     private static final Logger LOG = LoggerFactory.getLogger(StreamingJobGraphGenerator.class);
 
-    private static final long DEFAULT_NETWORK_BUFFER_TIMEOUT = 100L;
-
-    public static final long UNDEFINED_NETWORK_BUFFER_TIMEOUT = -1L;
+    public static final long DISABLED_NETWORK_BUFFER_TIMEOUT = -1L;

Review comment:
       Since you are already touching/modifing this, I would define this constant in `RecordWriter` and use it there as well?




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[GitHub] [flink] pnowojski commented on a change in pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
pnowojski commented on a change in pull request #17471:
URL: https://github.com/apache/flink/pull/17471#discussion_r728983541



##########
File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/graph/StreamingJobGraphGenerator.java
##########
@@ -105,9 +105,7 @@
 
     private static final Logger LOG = LoggerFactory.getLogger(StreamingJobGraphGenerator.class);
 
-    private static final long DEFAULT_NETWORK_BUFFER_TIMEOUT = 100L;
-
-    public static final long UNDEFINED_NETWORK_BUFFER_TIMEOUT = -1L;
+    public static final long DISABLED_NETWORK_BUFFER_TIMEOUT = -1L;

Review comment:
       Good point, but `StreamingJobGraphGenerator` doesn't sound like a good place for this constant. Shouldn't it be in `TaskManagerOptions` or some other class in `flink-core`?




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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] dawidwys commented on a change in pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
dawidwys commented on a change in pull request #17471:
URL: https://github.com/apache/flink/pull/17471#discussion_r728988282



##########
File path: flink-tests/src/test/java/org/apache/flink/test/streaming/runtime/BufferTimeoutITCase.java
##########
@@ -0,0 +1,87 @@
+/*
+ * 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.test.streaming.runtime;
+
+import org.apache.flink.configuration.ExecutionOptions;
+import org.apache.flink.core.execution.JobClient;
+import org.apache.flink.runtime.testutils.CommonTestUtils;
+import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+import org.apache.flink.streaming.api.functions.sink.SinkFunction;
+import org.apache.flink.streaming.api.functions.source.SourceFunction;
+import org.apache.flink.test.util.AbstractTestBase;
+import org.apache.flink.testutils.junit.SharedObjects;
+import org.apache.flink.testutils.junit.SharedReference;
+
+import org.junit.Rule;
+import org.junit.Test;
+
+import java.util.ArrayList;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.MatcherAssert.assertThat;
+
+/** Tests for {@link StreamExecutionEnvironment#setBufferTimeout(long)}. */
+public class BufferTimeoutITCase extends AbstractTestBase {
+
+    @Rule public final SharedObjects sharedObjects = SharedObjects.create();
+
+    /**
+     * The test verifies that it is possible to disable buffer flushing. It emits a single record,
+     * which should not fill an entire buffer, thus it should not never reach the sink. We check the
+     * sink has not seen any records after 2 times the default buffer timeout.
+     */
+    @Test
+    public void testDisablingBufferTimeout() throws Exception {
+        final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
+        env.setParallelism(1);
+        env.setBufferTimeout(-1);
+        final SharedReference<ArrayList<Integer>> results = sharedObjects.add(new ArrayList<>());
+
+        env.addSource(
+                        new SourceFunction<Integer>() {
+
+                            @Override
+                            public void run(SourceContext<Integer> ctx) throws Exception {
+                                ctx.collect(1);
+                                // just sleep forever
+                                Thread.sleep(Long.MAX_VALUE);
+                            }
+
+                            @Override
+                            public void cancel() {}
+                        })
+                .slotSharingGroup("source")
+                .addSink(
+                        new SinkFunction<Integer>() {
+
+                            @Override
+                            public void invoke(Integer value, Context context) throws Exception {
+                                results.get().add(value);
+                            }
+                        })
+                .slotSharingGroup("sink");
+
+        final JobClient jobClient = env.executeAsync();
+        CommonTestUtils.waitForAllTaskRunning(
+                miniClusterResource.getMiniCluster(), jobClient.getJobID(), false);
+
+        Thread.sleep(2 * ExecutionOptions.BUFFER_TIMEOUT.defaultValue().toMillis());
+        assertThat(results.get().size(), equalTo(0));

Review comment:
       1. A job will be cancelled in `AbstractTestBase#cleanupRunningJobs`
   2. As there is a single test (so far) the job will be brought down along with the cluster at the end.




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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] dawidwys commented on a change in pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
dawidwys commented on a change in pull request #17471:
URL: https://github.com/apache/flink/pull/17471#discussion_r728713197



##########
File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/graph/StreamingJobGraphGenerator.java
##########
@@ -105,9 +105,7 @@
 
     private static final Logger LOG = LoggerFactory.getLogger(StreamingJobGraphGenerator.class);
 
-    private static final long DEFAULT_NETWORK_BUFFER_TIMEOUT = 100L;
-
-    public static final long UNDEFINED_NETWORK_BUFFER_TIMEOUT = -1L;
+    public static final long DISABLED_NETWORK_BUFFER_TIMEOUT = -1L;

Review comment:
       I don't know if it is a good idea. There were concerns in the past that `flink-streaming-java` should not depend on the `flink-runtime`. It should rather be the opposite.
   
   Therefore I am a bit skeptical about using a constant from `RecordWriter` in `StreamingJobGraphGenerator`.




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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot commented on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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[GitHub] [flink] flinkbot edited a comment on pull request #17471: [FLINK-24465] Fix disabling buffer timeout for pipelined exchanges

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #17471:
URL: https://github.com/apache/flink/pull/17471#issuecomment-943073814


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