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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2020/10/14 21:16:50 UTC

[GitHub] [flink] rkhachatryan opened a new pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

rkhachatryan opened a new pull request #13642:
URL: https://github.com/apache/flink/pull/13642


   ## What is the purpose of the change
   
   *Remove duplicated `PipelinedSubpartition.addBufferConsumer` method and use `PipelinedSubpartition.add()` instead.*
   
   ## Verifying this change
   
   This change is a trivial rework without any test coverage.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): no
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: no
     - The serializers: no
     - The runtime per-record code paths (performance sensitive): no
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: no
     - The S3 file system connector: no
   
   ## Documentation
   
     - Does this pull request introduce a new feature? no
     - If yes, how is the feature documented? no
   


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[GitHub] [flink] flinkbot commented on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708665953


   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 04f8d715a9a672b0d832e9b9e067294376eae211 (Wed Oct 14 21:19:06 UTC 2020)
   
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   <sub>Mention the bot in a comment to re-run the automated checks.</sub>
   ## Review Progress
   
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[GitHub] [flink] rkhachatryan commented on a change in pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
rkhachatryan commented on a change in pull request #13642:
URL: https://github.com/apache/flink/pull/13642#discussion_r505423014



##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/channel/RecoveredChannelStateHandler.java
##########
@@ -101,7 +101,10 @@ private RecoveredInputChannel getChannel(InputChannelInfo info) {
 	public void recover(ResultSubpartitionInfo subpartitionInfo, Tuple2<BufferBuilder, BufferConsumer> bufferBuilderAndConsumer) {
 		bufferBuilderAndConsumer.f0.finish();
 		if (bufferBuilderAndConsumer.f1.isDataAvailable()) {
-			getSubpartition(subpartitionInfo).addBufferConsumer(bufferBuilderAndConsumer.f1);
+			boolean added = getSubpartition(subpartitionInfo).add(bufferBuilderAndConsumer.f1);
+			if (!added) {
+				throw new RuntimeException("Buffer consumer couldn't be added to ResultSubpartition");

Review comment:
       `false` is returned if the subpartition `isFinished || isReleased`. This case seems to me neither IO error nor recoverable.
   I can change to `IOException` though if you insist.




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[GitHub] [flink] rkhachatryan commented on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
rkhachatryan commented on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708975509


   CI failure unrelated (FLINK-19469).


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[GitHub] [flink] flinkbot edited a comment on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708668367


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   * 04f8d715a9a672b0d832e9b9e067294376eae211 Azure: [PENDING](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=7660) Azure: [FAILURE](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=7634) 
   * 0a808e97a4bd54c56e3b3eeb52d2c73b45366a34 UNKNOWN
   
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[GitHub] [flink] flinkbot edited a comment on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708668367


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   * 0a808e97a4bd54c56e3b3eeb52d2c73b45366a34 Azure: [FAILURE](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=7679) 
   
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[GitHub] [flink] pnowojski commented on a change in pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
pnowojski commented on a change in pull request #13642:
URL: https://github.com/apache/flink/pull/13642#discussion_r505405128



##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/channel/RecoveredChannelStateHandler.java
##########
@@ -101,7 +101,10 @@ private RecoveredInputChannel getChannel(InputChannelInfo info) {
 	public void recover(ResultSubpartitionInfo subpartitionInfo, Tuple2<BufferBuilder, BufferConsumer> bufferBuilderAndConsumer) {
 		bufferBuilderAndConsumer.f0.finish();
 		if (bufferBuilderAndConsumer.f1.isDataAvailable()) {
-			getSubpartition(subpartitionInfo).addBufferConsumer(bufferBuilderAndConsumer.f1);
+			boolean added = getSubpartition(subpartitionInfo).add(bufferBuilderAndConsumer.f1);
+			if (!added) {
+				throw new RuntimeException("Buffer consumer couldn't be added to ResultSubpartition");

Review comment:
       `IOException`? (`org.apache.flink.runtime.checkpoint.channel.ChannelStateChunkReader#readChunk` already can handle `IOException`).




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[GitHub] [flink] pnowojski commented on a change in pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
pnowojski commented on a change in pull request #13642:
URL: https://github.com/apache/flink/pull/13642#discussion_r505449067



##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/channel/RecoveredChannelStateHandler.java
##########
@@ -101,7 +101,10 @@ private RecoveredInputChannel getChannel(InputChannelInfo info) {
 	public void recover(ResultSubpartitionInfo subpartitionInfo, Tuple2<BufferBuilder, BufferConsumer> bufferBuilderAndConsumer) {
 		bufferBuilderAndConsumer.f0.finish();
 		if (bufferBuilderAndConsumer.f1.isDataAvailable()) {
-			getSubpartition(subpartitionInfo).addBufferConsumer(bufferBuilderAndConsumer.f1);
+			boolean added = getSubpartition(subpartitionInfo).add(bufferBuilderAndConsumer.f1);
+			if (!added) {
+				throw new RuntimeException("Buffer consumer couldn't be added to ResultSubpartition");

Review comment:
       I suggested `IOException` because that's what was in the signature of the parent/caller method.
   
   Maybe alternatively `CancelTaskException`, but I'm not entirely sure if that's always the case (what if there was some error in this task, that caused the partition to be released?)
   
   What adds to my confusion is that this return value is ignored in rest of the code base? 🤷‍♂️ 
   
   I think for now it would be the best to go with `IOException`.




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[GitHub] [flink] pnowojski merged pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
pnowojski merged pull request #13642:
URL: https://github.com/apache/flink/pull/13642


   


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[GitHub] [flink] rkhachatryan commented on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
rkhachatryan commented on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708972619


   @flinkbot run azure


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[GitHub] [flink] flinkbot edited a comment on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708668367


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   ## CI report:
   
   * 04f8d715a9a672b0d832e9b9e067294376eae211 Azure: [PENDING](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=7660) Azure: [FAILURE](https://dev.azure.com/apache-flink/98463496-1af2-4620-8eab-a2ecc1a2e6fe/_build/results?buildId=7634) 
   
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[GitHub] [flink] flinkbot edited a comment on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708668367


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[GitHub] [flink] rkhachatryan commented on a change in pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
rkhachatryan commented on a change in pull request #13642:
URL: https://github.com/apache/flink/pull/13642#discussion_r505453438



##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/channel/RecoveredChannelStateHandler.java
##########
@@ -101,7 +101,10 @@ private RecoveredInputChannel getChannel(InputChannelInfo info) {
 	public void recover(ResultSubpartitionInfo subpartitionInfo, Tuple2<BufferBuilder, BufferConsumer> bufferBuilderAndConsumer) {
 		bufferBuilderAndConsumer.f0.finish();
 		if (bufferBuilderAndConsumer.f1.isDataAvailable()) {
-			getSubpartition(subpartitionInfo).addBufferConsumer(bufferBuilderAndConsumer.f1);
+			boolean added = getSubpartition(subpartitionInfo).add(bufferBuilderAndConsumer.f1);
+			if (!added) {
+				throw new RuntimeException("Buffer consumer couldn't be added to ResultSubpartition");

Review comment:
       Changed to `IOException`.
   
   > What adds to my confusion is that this return value is ignored in rest of the code base?
   
   I agree, but I think it can be addressed separately.




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[GitHub] [flink] flinkbot edited a comment on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708668367


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[GitHub] [flink] flinkbot edited a comment on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708668367


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[GitHub] [flink] flinkbot commented on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
flinkbot commented on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708668367


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[GitHub] [flink] flinkbot edited a comment on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708668367


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[GitHub] [flink] flinkbot edited a comment on pull request #13642: [task][hotfix] Remove PipelinedSubpartition.addBufferConsumer method

Posted by GitBox <gi...@apache.org>.
flinkbot edited a comment on pull request #13642:
URL: https://github.com/apache/flink/pull/13642#issuecomment-708668367


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