David Wayne Birdsall created TRAFODION-2352:
-----------------------------------------------
Summary: 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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
