Github user HyukjinKwon commented on the issue:
https://github.com/apache/spark/pull/16247
This test failure seems related with this PR. It seems because the previous
Hive-enabled spark session is not closed properly between `test_saprkSQL.R` and
`test_sparkR.R` here, in particular, I suspect the lock in derby via Hive
client. It seems apparently related with SPARK-16027?
There was only single instance of Hive-enabled spark session there but the
test here introduces another one. I manually tested for each after removing
each other and it seems working fine.
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