young guy wanting (Postgres DBA) ammo - Mailing list pgsql-general

From Kevin Hunter
Subject young guy wanting (Postgres DBA) ammo
Date
Msg-id 472AA1A2.3030307@earlham.edu
Whole thread Raw
Responses Re: young guy wanting (Postgres DBA) ammo  (Tom Lane <tgl@sss.pgh.pa.us>)
Re: young guy wanting (Postgres DBA) ammo  ("Scott Marlowe" <scott.marlowe@gmail.com>)
Re: young guy wanting (Postgres DBA) ammo  (Greg Smith <gsmith@gregsmith.com>)
Re: young guy wanting (Postgres DBA) ammo  (Brad Nicholson <bnichols@ca.afilias.info>)
Re: young guy wanting (Postgres DBA) ammo  (Robert Treat <xzilla@users.sourceforge.net>)
Re: young guy wanting (Postgres DBA) ammo  ("Merlin Moncure" <mmoncure@gmail.com>)
List pgsql-general
Hiya list,

A friend recently told me that, among other things, the institutions for
which he works tend to choose MySQL or MSSQL over Postgres because the
latter requires a dedicated DBA while the former do not.  When they do
spring for a DBA, they go with Oracle.  As a developer/end-user in/of
the MySQL/Postgres/Oracle environments, I can say hands down that I
prefer Postgres and I have a list of reasons why to which I can readily
refer.

However, I'm not a DBA and only minimally know what's involved in doing
the job, so I don't have "ammo" to defend (or agree?) with my friend
when he says that "Postgres requires a DBA and MySQL doesn't so that's
why they choose the latter."  Basically, I have so far not run across
the need to mess with any of the tunables.  (I am naive, I know.)
Clearly, one should generally pick the best tool for the job, so I'm no
pundit that Postgres is *always* the right answer, but I'd like to be
informed.  My questions:

- With 8.2, and the almost-out 8.3, what kinds of responsibilities
should a Postgres DBA expect to have?

- More in line with the conversation with my friend, what/why is it that
Postgres needs a DBA while MySQL doesn't?  I highly suspect that the
assumption that MySQL doesn't need a DBA is incorrect, but that's what
was posed to me and I couldn't agree or disagree.

I am familiar with Greg Smith et al's page:
http://www.postgresql.org/docs/techdocs.83

Thoughts?  Thanks in advance,

Kevin

P.S. BTW Greg et al, thank you a *ton* for putting that document
together.  I learned a lot watching the discussion on the list and
reading the final version.

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