SourabhBadhya opened a new pull request, #3876:
URL: https://github.com/apache/hive/pull/3876

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   ### What changes were proposed in this pull request?
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   The 3 tests in TestCrudCompactorOnTez which use the ProtoLoggingHook run at 
different times. Unfortunately, the 3 tests are run at the following times as 
described in the logs - 
   Test 1 - 
   `2022-12-15T16:57:44,294  INFO [main] compactor.TestCrudCompactorOnTez: 
Current time: 2022-12-15T23:57:44 `
   Test 2 - 
   `2022-12-15T17:00:32,452  INFO [main] compactor.TestCrudCompactorOnTez: 
Current time: 2022-12-16T00:00:32 `
   Test 3 - 
   `2022-12-15T17:04:12,895  INFO [main] compactor.TestCrudCompactorOnTez: 
Current time: 2022-12-16T00:04:12 `
   As we can see, the tests are run on 2 different dates. Therefore, 
HiveProtoLoggingHook generates a unique event logs for every unique date. This 
is the behaviour of HiveProtoLoggingHook.
   
https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/hooks/HiveProtoLoggingHook.java#L296-L310
   
   However the expectation from the test side, while generating the log readers 
is that there must be a single file in the log folder defined.
   
https://github.com/apache/hive/blob/master/ql/src/test/org/apache/hadoop/hive/ql/hooks/TestHiveProtoLoggingHook.java#L310
 
   
   Unfortunately, since there are 2 files which are generated (as mentioned in 
the logs as well), the following tests fail - 
   
   ```
   2022-12-15T17:04:14,837  INFO [main] hooks.TestHiveProtoLoggingHook: List of 
paths: 
   2022-12-15T17:04:14,837  INFO [main] hooks.TestHiveProtoLoggingHook: 
file:/home/jenkins/agent/workspace/internal-hive-flaky-check/itests/hive-unit/target/tmp/junit441259831997042392/junit3438435196942546140/date=2022-12-15
   2022-12-15T17:04:14,837  INFO [main] hooks.TestHiveProtoLoggingHook: 
file:/home/jenkins/agent/workspace/internal-hive-flaky-check/itests/hive-unit/target/tmp/junit441259831997042392/junit3438435196942546140/date=2022-12-16
 
   ```
   The solution is to make getTestReader() in TestHiveProtoLoggingHook more 
compatible with multiple event log file scenario and be able to generate 
multiple readers for all files present in the folder instead of fixating on a 
single file clause.
   
   ### Why are the changes needed?
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   To fix this flakiness in TestCrudCompactorOnTez
   
   ### Does this PR introduce _any_ user-facing change?
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   Note that it means *any* user-facing change including all aspects such as 
the documentation fix.
   If yes, please clarify the previous behavior and the change this PR proposes 
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   No
   
   ### How was this patch tested?
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   Existing unit tests are sufficient


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