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Posted to issues@impala.apache.org by "Lars Volker (JIRA)" <ji...@apache.org> on 2017/06/20 18:20:00 UTC

[jira] [Created] (IMPALA-5544) CTAS fails to write to HDFS when NN HA is enabled

Lars Volker created IMPALA-5544:
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             Summary: CTAS fails to write to HDFS when NN HA is enabled
                 Key: IMPALA-5544
                 URL: https://issues.apache.org/jira/browse/IMPALA-5544
             Project: IMPALA
          Issue Type: Bug
          Components: Backend
    Affects Versions: Impala 2.9.0, Impala 2.10.0
            Reporter: Lars Volker
            Priority: Critical


For CTAS queries, Impala has to do some gymnastics to figure out the path of the new table before the table has actually been created by the Hive Metastore. It looks like like that logic has a bug which prevents it from working with HDFS HA.

A workaround is to split the query into {{create table}} and {{insert into select}}.



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