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https://issues.apache.org/jira/browse/TRAFODION-2352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15664864#comment-15664864
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ASF GitHub Bot commented on TRAFODION-2352:
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Github user asfgit closed the pull request at:
https://github.com/apache/incubator-trafodion/pull/830
> UPDATE STATS may fail with error 8446 on Hive tables
> ----------------------------------------------------
>
> Key: TRAFODION-2352
> URL: https://issues.apache.org/jira/browse/TRAFODION-2352
> Project: Apache Trafodion
> Issue Type: Bug
> Components: sql-cmp
> Affects Versions: 2.1-incubating
> Environment: All
> Reporter: David Wayne Birdsall
> Assignee: David Wayne Birdsall
>
> UPDATE STATISTICS may fail on a Hive table with very long varchar columns.
> The symptom is an error 8446 "An error occurred during hdfs buffer fetch.
> Error Detail: No record delimiter found in buffer from hdfsRead." This
> happens when reading data from the table, and the query plan for the read
> happens to be a parallel plan.
> The problem relates to CQD HIVE_MAX_STRING_LENGTH_IN_BYTES. This defaults to
> 32000. When a Hive table has a column with a value having a length longer
> than this, we might get this error even though the user may have issued a CQD
> for this with a larger value.
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