alnzng commented on pull request #1515:
URL: https://github.com/apache/samza/pull/1515#issuecomment-900614120


   > Thanks for refactoring the codes and adding more test cases, the code 
changes look good to me.
   > 
   > One thing you may want to double check is that I saw OOM happened when 
running the command locally: `./gradlew build -PrunIntegrationTests`:
   > 
   > ```
   > > Task :samza-core_2.11:test
   > 
   > Exception: java.lang.OutOfMemoryError thrown from the 
UncaughtExceptionHandler in thread "RMI 
RenewClean-[alazhang-mn1.linkedin.biz:56375]"
   > 
   > Exception: java.lang.OutOfMemoryError thrown from the 
UncaughtExceptionHandler in thread "RMI 
RenewClean-[alazhang-mn1.linkedin.biz:56656]"
   > 
   > Exception: java.lang.OutOfMemoryError thrown from the 
UncaughtExceptionHandler in thread "Thread-156"
   > 
   > executionError FAILED
   >     java.lang.OutOfMemoryError: Java heap space
   > 
   > 1446 tests completed, 1 failed, 4 skipped
   > 
   > > Task :samza-core_2.11:test FAILED
   > 
   > FAILURE: Build failed with an exception.
   > ```
   
   Tried to rebuild on the existing project and also tried to fresh checkout, 
the build passed on both of them, I didn't see this OOM problem anymore. Also 
@cameronlee314 tried on his local env and he didn't observe any problem.
   
   For now, I would think it is an unreproducible problem, it could be caused 
by some noise in my local env. The problem should not be caused by these code 
changes.
   
   So, this PR looks good to me.
   
   
   
   


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