bigdata-dev team mailing list archive

[Kevin W Monroe <kevin.monroe@xxxxxxxxxxxxx>]

Yeah, it wouldn't matter if incorrect config was in hive-site.xml.  But
I can foresee an admin seeing mysql connection info in hive-site.xml and
wondering why the heck hive isn't starting.  I think it'd be nice to
clear those out so it's obvious that we have no mysql user/password in
the hive config.

For the other thing, hive creates tables on the db given to it by mysql.
If the mysql relation is removed (which an admin might do if they want
to swap it out for mariadb), the mysql unit would still have the hive
database configured.  Now fast forward 2 years and the mysql admin being
like "oh crap, what are all these databases doing here?".  I think
anybody that creates a database on a db unit should be responsible for
removing that db if that relation is removed.

This is all nice-to-have.  No functionality is breaking, but I wanted to
file the bug so I don't forget.

-- 
You received this bug notification because you are a member of Juju Big
Data Development, which is a bug assignee.
https://bugs.launchpad.net/bugs/1490643

Title:
  remove db on db-relation-departed

Status in apache-hive package in Juju Charms Collection:
  New

Bug description:
  Hive should remove its database from the db unit when the relevant
  realtion-departed (or -broken) hook fires.

  This means creating the right hook to do the removal and potentially
  adding logic to clean old connection info from hive-site.xml.

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