Re: Fixing cache pollution in the Kerberos test suite - Mailing list pgsql-hackers

From Stephen Frost
Subject Re: Fixing cache pollution in the Kerberos test suite
Date
Msg-id 20210125183645.GF27507@tamriel.snowman.net
Whole thread Raw
In response to Fixing cache pollution in the Kerberos test suite  (Jacob Champion <pchampion@vmware.com>)
Responses Re: Fixing cache pollution in the Kerberos test suite  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
Greetings,

* Jacob Champion (pchampion@vmware.com) wrote:
> I was running tests with a GSS-enabled stack, and ran into some very
> long psql timeouts after running the Kerberos test suite. It turns out
> the suite pushes test credentials into the user's global cache, and
> these no-longer-useful credentials persist after the suite has
> finished. (You can see this in action by running the test/kerberos
> suite and then running `klist`.) This leads to long hangs, I assume
> while the GSS implementation tries to contact a KDC that no longer
> exists.
> Attached is a patch that initializes a local credentials cache inside
> tmp_check/krb5cc, and tells psql to use it via the KRB5CCNAME envvar.
> This prevents the global cache pollution. WDYT?

Ah, yeah, that generally seems like a good idea.

Thanks,

Stephen

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