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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-5504) Vector validator to diagnose offset vector issues
Date Fri, 19 May 2017 17:13:04 GMT

    [ https://issues.apache.org/jira/browse/DRILL-5504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16017674#comment-16017674

ASF GitHub Bot commented on DRILL-5504:

Github user paul-rogers commented on the issue:

    Commits squashed.

> 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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