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From "Paul Rogers (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-5504) Vector validator to diagnose offset vector issues
Date Wed, 10 May 2017 23:39:04 GMT
Paul Rogers created DRILL-5504:
----------------------------------

             Summary: Vector validator to diagnose offset vector issues
                 Key: DRILL-5504
                 URL: https://issues.apache.org/jira/browse/DRILL-5504
             Project: Apache Drill
          Issue Type: Improvement
    Affects Versions: 1.10.0
            Reporter: Paul Rogers
            Assignee: Paul Rogers
            Priority: Minor
             Fix For: 1.11.0


DRILL-5470 describes a case in which an offset vector appears to have become corrupted, yielding
a bogus field-length value that is orders of magnitude larger than the vector that contains
the data.

Debugging such cases is slow and tedious. To help, we propose to create a "vector validator"
that spins through vectors looking for problems.

Then, to allow the validator to be used in the field, extend the "iterator validator batch
iterator" to optionally allow vector validation on each batch.



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