Hi,

Do you have more complete tracebacks?

Missatge de Charles Givre <cgi...@apache.org> del dia dt., 11 de febr. 2020
a les 2:54:

> Hello Everyone!
> I recently joined a project that has a Hive/Impala installation and we are
> experience a significant number of query failures.  We are using an older
> version of Hive, and unfortunately there's nothing iI can do about that,
> but I'm wondering is how I can make Hive do better with queries to give our
> users a better experience.
>
> For example, I can execute a basic SELECT * query or SELECT <fields> query
> without issues.
>
> However, if I attempt to:
> 1.  Add filters
> 2.  Do a SELECT DISTINCT
> 3.  Perform basic aggregation
>
> I get errors like this: Execution Error, return code 1 from
> org.apache.hadoop.hive.ql.exec.mr.MapRedTask.
>
> Could someone point me to some good guides for querying Hive and/or
> assisting my engineers in preventing these errors?
> Thanks,
>
>

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