Subject: spark hive concurrency


That assertion seems to be true. Spark does not seem to hold locks when
doing DML on a Hive table.

I cannot recall whether I checked it in previous versions of Spark.
However, in Spark  2.3 I can see that is true using Hive 3.0

This may be a potential oversight as Spark SQL and Hive are drifting away
from each other.

HTH

Dr Mich Talebzadeh

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On Mon, 29 Apr 2019 at 09:54, CPC <[EMAIL PROTECTED]> wrote: