[jira] [Created] (METRON-1546) Returning an empty array list at parse time causes tuple to be considered as uncommitted and stall the parser topology

["Ali Nazemian (JIRA)" <ji...@apache.org>]

Ali Nazemian created METRON-1546:
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             Summary: Returning an empty array list at parse time causes tuple to be considered as uncommitted and stall the parser topology
                 Key: METRON-1546
                 URL: https://issues.apache.org/jira/browse/METRON-1546
             Project: Metron
          Issue Type: Bug
            Reporter: Ali Nazemian


It appears if (for any reason) an empty List is returned in parser sub-classes (any sub-class of BasicParser) the corresponding tuple won't be committed. Hence, Storm retries it based on the retry strategy which won't be required for this situation. Also, if we hit the "spout.maxUncommittedOffsets" parser topology stalls and it needs to be restarted! 

This issue can be reproduced by using a very small value for "spout.maxUncommittedOffsets".

 



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