millions of warnings per day, state DB grows by 4GB/day

[Peter Grandi]

> [ ... ] (Even just getting mongo stats on the collections as a
> whole is likely to help us understand where the size is coming
> from.)  If it is what I think it is, then I would expect the
> txns collection to be growing rapidly. [ ... ]

So I got into the state MongoDB instance with (from a web page
plus some help from #Juju):

  mongo --ssl --authenticationDatabase admin \
   -u admin -p $FROMMACHINEAGENTCONF localhost:37017/juju

and the collection sizes are I think as you guessed, with this
(shortened for readability) output:

  http://paste.ubuntu.com/12206023/

showing that 'lease', 'txns', 'txns.stash' are large. Even if
they have relatively few entries (still many for 'txns' and
'txns.log').

Fortunately the partition is which '/var/lib/juju/db/' resides
is quite large, so size is not an issue, I was more worried
about the amount of traffic and load indicating a possibly
bigger problem.

I'll proceed soon to upgrade to the latest stable (1.24.5 IIRC)
taking backups and checking the details mentioned by MennoS.

Many thanks!