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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2021/06/10 22:56:45 UTC

[GitHub] [beam] robertwb opened a new pull request #14991: [BEAM-12475] Reject splits for previous bundles.

robertwb opened a new pull request #14991:
URL: https://github.com/apache/beam/pull/14991


   Also disallows resetting an active bundle processor, which could
   interfere with splitting and makes the check for the split request
   being for the current one meaningful.
   
   ------------------------
   
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   `ValidatesRunner` compliance status (on master branch)
   --------------------------------------------------------
   
   <table>
     <thead>
       <tr>
         <th>Lang</th>
         <th>ULR</th>
         <th>Dataflow</th>
         <th>Flink</th>
         <th>Samza</th>
         <th>Spark</th>
         <th>Twister2</th>
       </tr>
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         <td>Go</td>
         <td>---</td>
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         <td>---</td>
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         <td>---</td>
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         <td>---</td>
       </tr>
     </tbody>
   </table>
   
   Examples testing status on various runners
   --------------------------------------------------------
   
   <table>
     <thead>
       <tr>
         <th>Lang</th>
         <th>ULR</th>
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         <th>Twister2</th>
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     </thead>
     <tbody>
       <tr>
         <td>Go</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
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         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
       </tr>
       <tr>
         <td>Python</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
       </tr>
       <tr>
         <td>XLang</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
         <td>---</td>
       </tr>
     </tbody>
   </table>
   
   Post-Commit SDK/Transform Integration Tests Status (on master branch)
   ------------------------------------------------------------------------------------------------
   
   <table>
     <thead>
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         <th>Java</th>
         <th>Python</th>
       </tr>
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   Pre-Commit Tests Status (on master branch)
   ------------------------------------------------------------------------------------------------
   
   <table>
     <thead>
       <tr>
         <th>---</th>
         <th>Java</th>
         <th>Python</th>
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         <td>---</td>
         <td>---</td>
         <td>---</td>
       </tr>
     </tbody>
   </table>
   
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[GitHub] [beam] boyuanzz commented on pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
boyuanzz commented on pull request #14991:
URL: https://github.com/apache/beam/pull/14991#issuecomment-860968139


   > [BEAM-12291](https://issues.apache.org/jira/browse/BEAM-12291) flakiness?
   
   yeah that's flaky.


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[GitHub] [beam] robertwb commented on a change in pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
robertwb commented on a change in pull request #14991:
URL: https://github.com/apache/beam/pull/14991#discussion_r651317762



##########
File path: sdks/java/harness/src/test/java/org/apache/beam/fn/harness/BeamFnDataReadRunnerTest.java
##########
@@ -178,7 +179,7 @@ public void testCreatingAndProcessingBeamFnDataReadRunner() throws Exception {
               null /* beamFnTimerClient */,

Review comment:
       https://github.com/apache/beam/pull/15011
   
   I would not be oppose to adding additional locking to ProcessBundleHandler, but in general we try to avoid locks while invoking user code so this seems to imply we still need to have locking in BeamFnDataReadRunner (as well as it being good practice to guard against internal access of private variables that may be accessed from multiple threads).




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[GitHub] [beam] robertwb commented on pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
robertwb commented on pull request #14991:
URL: https://github.com/apache/beam/pull/14991#issuecomment-860967561


   BEAM-12291 flakiness?


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[GitHub] [beam] robertwb commented on pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
robertwb commented on pull request #14991:
URL: https://github.com/apache/beam/pull/14991#issuecomment-860967666


   Run Java PreCommit


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[GitHub] [beam] boyuanzz commented on pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
boyuanzz commented on pull request #14991:
URL: https://github.com/apache/beam/pull/14991#issuecomment-860952082


   Looking now.


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[GitHub] [beam] robertwb commented on pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
robertwb commented on pull request #14991:
URL: https://github.com/apache/beam/pull/14991#issuecomment-859138252


   R: @boyuanzz 


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[GitHub] [beam] lukecwik commented on a change in pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
lukecwik commented on a change in pull request #14991:
URL: https://github.com/apache/beam/pull/14991#discussion_r651321236



##########
File path: sdks/java/harness/src/test/java/org/apache/beam/fn/harness/BeamFnDataReadRunnerTest.java
##########
@@ -178,7 +179,7 @@ public void testCreatingAndProcessingBeamFnDataReadRunner() throws Exception {
               null /* beamFnTimerClient */,

Review comment:
       Your right that locking would be necessary since we wouldn't want to have stale reads. In this case we are only overwriting data so it would be ok but in other places reset may want to `read` the data and should lock appropriately.
   
   Would be good to document the concurrency.




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[GitHub] [beam] lukecwik commented on a change in pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
lukecwik commented on a change in pull request #14991:
URL: https://github.com/apache/beam/pull/14991#discussion_r651321236



##########
File path: sdks/java/harness/src/test/java/org/apache/beam/fn/harness/BeamFnDataReadRunnerTest.java
##########
@@ -178,7 +179,7 @@ public void testCreatingAndProcessingBeamFnDataReadRunner() throws Exception {
               null /* beamFnTimerClient */,

Review comment:
       Your right that locking would be necessary since we wouldn't want to have stale reads so moving the locking out to reset() doesn't guarantee non-stale reads. In this case reset() is only writing which would be ok.
   
   Would be good to document the concurrency.




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[GitHub] [beam] robertwb commented on pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
robertwb commented on pull request #14991:
URL: https://github.com/apache/beam/pull/14991#issuecomment-860981272


   Thanks!


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[GitHub] [beam] robertwb merged pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
robertwb merged pull request #14991:
URL: https://github.com/apache/beam/pull/14991


   


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[GitHub] [beam] lukecwik commented on a change in pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
lukecwik commented on a change in pull request #14991:
URL: https://github.com/apache/beam/pull/14991#discussion_r651268277



##########
File path: sdks/java/harness/src/test/java/org/apache/beam/fn/harness/BeamFnDataReadRunnerTest.java
##########
@@ -178,7 +179,7 @@ public void testCreatingAndProcessingBeamFnDataReadRunner() throws Exception {
               null /* beamFnTimerClient */,

Review comment:
       bundleId is now unused is likely a linter issue, if its still used, please replace existing references to use DEFAULT_BUNDLE_ID in this test.




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[GitHub] [beam] lukecwik commented on a change in pull request #14991: [BEAM-12475] Reject splits for previous bundles.

Posted by GitBox <gi...@apache.org>.
lukecwik commented on a change in pull request #14991:
URL: https://github.com/apache/beam/pull/14991#discussion_r651321236



##########
File path: sdks/java/harness/src/test/java/org/apache/beam/fn/harness/BeamFnDataReadRunnerTest.java
##########
@@ -178,7 +179,7 @@ public void testCreatingAndProcessingBeamFnDataReadRunner() throws Exception {
               null /* beamFnTimerClient */,

Review comment:
       The guarantee would be that `reset()` won't be invoked while the other methods are being invoked.
   
   We also need documentation saying which methods can be called in parallel with others.




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