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ZEPPELIN-1063: fix PythonInterpreter flaky test#1134

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bzz:ZEPPELIN-1063/python/add-retrys
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ZEPPELIN-1063: fix PythonInterpreter flaky test#1134
bzz wants to merge 3 commits into
apache:masterfrom
bzz:ZEPPELIN-1063/python/add-retrys

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@bzz bzz commented Jul 5, 2016

What is this PR for?

fix flaky PythonInterpreter.testClose() test

What type of PR is it?

Hot Fix

What is the Jira issue?

ZEPPELIN-1063

How should this be tested?

CI should pass

Questions:

  • Does the licenses files need update? no
  • Is there breaking changes for older versions? no
  • Does this needs documentation? no

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bzz commented Jul 5, 2016

Should fix build on master and #1100

@bzz bzz force-pushed the ZEPPELIN-1063/python/add-retrys branch from b0b3f32 to 3529fe5 Compare July 5, 2016 09:01
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bzz commented Jul 5, 2016

Rebased on latest master, waiting CI to finish and merging as a HOTFIX

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bzz commented Jul 6, 2016

CI fails with something strange, never seen before

Running org.apache.zeppelin.interpreter.remote.RemoteInterpreterTest
11:02:15,102  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreterManagedProcess:114 - Run interpreter process [/home/travis/build/apache/zeppelin/zeppelin-interpreter/../bin/interpreter.sh, -d, fake, -p, 36543, -l, fakeRepo]
/home/travis/build/apache/zeppelin/zeppelin-interpreter/../bin/interpreter.sh: line 159: /home/travis/build/apache/zeppelin/run/zeppelin-interpreter-fake-travis-testing-worker-linux-docker-b27ad04a-3371-linux-4.pid: No such file or directory
11:02:15,617  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreter:223 - Create remote interpreter org.apache.zeppelin.interpreter.remote.mock.MockInterpreterA
11:02:15,876  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreter:223 - Create remote interpreter org.apache.zeppelin.interpreter.remote.mock.MockInterpreterB
11:02:15,912 ERROR org.apache.zeppelin.interpreter.remote.RemoteInterpreterEventPoller:192 - Can't handle event RemoteInterpreterEvent(type:OUTPUT_UPDATE, data:{"data":"","noteId":"note","paragraphId":"id"})
java.lang.NullPointerException
    at org.apache.zeppelin.interpreter.remote.RemoteInterpreterEventPoller.run(RemoteInterpreterEventPoller.java:174)
11:02:15,946 ERROR org.apache.zeppelin.interpreter.remote.RemoteInterpreterEventPoller:192 - Can't handle event RemoteInterpreterEvent(type:OUTPUT_APPEND, data:{"data":"","noteId":"note","paragraphId":"id"})
java.lang.NullPointerException
    at org.apache.zeppelin.interpreter.remote.RemoteInterpreterEventPoller.run(RemoteInterpreterEventPoller.java:160)
11:02:15,956  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess:127 - shutdown interpreter process
11:02:18,078  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess:137 - Exception in RemoteInterpreterProcess while synchronized dereference, can safely ignore exception while client.shutdown() may terminates remote process
11:02:18,080  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreterManagedProcess:152 - Interpreter process exited 0
11:02:18,580  INFO org.apache.zeppelin.interpreter.InterpreterGroup:140 - Close interpreter group InterpreterGroup_1467716535100_997017074
11:02:18,590  INFO org.apache.zeppelin.interpreter.InterpreterGroup:204 - Destroy interpreter group InterpreterGroup_1467716535100_997017074
11:02:18,601  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreterManagedProcess:114 - Run interpreter process [/home/travis/build/apache/zeppelin/zeppelin-interpreter/../bin/interpreter.sh, -d, fake, -p, 47761, -l, fakeRepo]
/home/travis/build/apache/zeppelin/zeppelin-interpreter/../bin/interpreter.sh: line 159: /home/travis/build/apache/zeppelin/run/zeppelin-interpreter-fake-travis-testing-worker-linux-docker-b27ad04a-3371-linux-4.pid: No such file or directory
11:02:19,104  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreter:223 - Create remote interpreter org.apache.zeppelin.interpreter.remote.mock.MockInterpreterA
11:02:19,481  INFO org.apache.zeppelin.scheduler.SchedulerFactory:131 - Job 0 started by scheduler org.apache.zeppelin.interpreter.remote.RemoteInterpreternote1780497356
11:02:19,529 ERROR org.apache.zeppelin.interpreter.remote.RemoteInterpreterEventPoller:192 - Can't handle event RemoteInterpreterEvent(type:OUTPUT_UPDATE, data:{"data":"","noteId":"note","paragraphId":"0"})
java.lang.NullPointerException
    at org.apache.zeppelin.interpreter.remote.RemoteInterpreterEventPoller.run(RemoteInterpreterEventPoller.java:174)
11:02:19,573 ERROR org.apache.zeppelin.interpreter.remote.RemoteInterpreterEventPoller:192 - Can't handle event RemoteInterpreterEvent(type:OUTPUT_APPEND, data:{"data":"","noteId":"note","paragraphId":"0"})
java.lang.NullPointerException
    at org.apache.zeppelin.interpreter.remote.RemoteInterpreterEventPoller.run(RemoteInterpreterEventPoller.java:160)
11:02:19,583  INFO org.apache.zeppelin.scheduler.SchedulerFactory:137 - Job 0 finished by scheduler org.apache.zeppelin.interpreter.remote.RemoteInterpreternote1780497356

re-triggerin, to see if it's reproducable

@bzz bzz closed this Jul 6, 2016
@bzz bzz reopened this Jul 6, 2016
felixcheung
felixcheung reviewed Jul 6, 2016
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Comment thread python/src/test/java/org/apache/zeppelin/python/PythonInterpreterTest.java Outdated

assertTrue(serverIsListeningOn(py4jPort));
pythonInterpreter.close();
TimeUnit.SECONDS.sleep(1);
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@felixcheung felixcheung Jul 6, 2016

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this might be too short for slow Travis CI runs?

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felixcheung commented Jul 6, 2016

LGTM seems like CI passed.

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bzz commented Jul 7, 2016

Reviews addressed in 65698d2, waiting for CI now

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bzz commented Jul 7, 2016

CI is green, merging if there is no more discussion

@asfgit asfgit closed this in 399c49b Jul 7, 2016
PhilippGrulich pushed a commit to SWC-SENSE/zeppelin that referenced this pull request Aug 8, 2016
@bzz @PhilippGrulich
ZEPPELIN-1063: fix PythonInterpreter flaky test
c6a5509 
### What is this PR for?
 fix flaky `PythonInterpreter.testClose()` test

### What type of PR is it?
Hot Fix

### What is the Jira issue?
[ZEPPELIN-1063](https://issues.apache.org/jira/browse/ZEPPELIN-1063)

### How should this be tested?
CI should pass

### Questions:
* Does the licenses files need update? no
* Is there breaking changes for older versions? no
* Does this needs documentation? no

Author: Alexander Bezzubov <bzz@apache.org>

Closes apache#1134 from bzz/ZEPPELIN-1063/python/add-retrys and squashes the following commits:

65698d2 [Alexander Bezzubov] Reduce 😴 time in python interpreter unit-test
1be7732 [Alexander Bezzubov] Adding timeout for py4j gateway to have time to shutdown
3529fe5 [Alexander Bezzubov] fix PythonInterpreterTest.testClose() test
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@bzz @felixcheung