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<H1>[Mageia-sysadm] Swap kills champagne this morning</H1>
<B>Michael Scherer</B>
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TITLE="[Mageia-sysadm] Swap kills champagne this morning">misc at zarb.org
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<I>Mon Mar 21 13:03:03 CET 2011</I>
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<PRE> On Sun, 20 Mar 2011 23:34:29 +0100, Damien Lallement wrote:
><i> On Sun, 20 Mar 2011 15:05:39 +0100, Michael Scherer <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-sysadm">misc at zarb.org</A>>
</I>><i> wrote:
</I>>><i> On Sat, 19 Mar 2011 20:30:29 +0100, Damien Lallement wrote:
</I>>><i>
</I>>>><i> FYI, all is now working as expected.
</I>>>><i> There was a small issue with MySQL: a "mysqladmin flush-hosts" (on
</I>>>><i> krampouezh) fixed it.
</I>>><i>
</I>>><i> You mean on champagne, or was the assignation of the various server
</I>>><i> was changed ?
</I>><i>
</I>><i> No I was talking about krampouezh as it is the MySQL server as always
</I>><i> said.
</I>
That's not exactly what I understood :
- there is no comment about using mysql on krampouezh in nodes.pp
- it seems more logical to me to have the same server running sql and
apache
for performance related reasons. ( ie, no network roundtrip )
- it is also more logical to have less SPOF by having this on a single
system
I may have missed mails on sysadm, but the only one I found date back
to
october, saying that mysql will be used for blogs :
<A HREF="https://www.mageia.org/pipermail/mageia-sysadm/2010-October/000121.html">https://www.mageia.org/pipermail/mageia-sysadm/2010-October/000121.html</A>
So sure, maybe you told to others people or on irc so you may see my
remark as unfair,
but I think it would be nice to warn admins on the canonical
communication channel, ie
here.
>><i> As krampouezh was planned to be used as a secondary mx, secondary
</I>>><i> ldap and others stuff
</I>><i>
</I>><i> like MySQL server.
</I>
See previous answer. And I think this should be avoided if possible as
this mean we have 2 SPOF for the blogs, champagne and krampouezh.
Given that krampouezh already stopped without notice ( due to
a upgrade of a gandi related rpm, as you explained off-list ),
I would prefer that we first find what exactly happened before
deploying
a system where we can be hit 2 times more by the problem again. I
didn't
upgraded neither krampouezh or champagne for that very reason :
[<A HREF="https://www.mageia.org/mailman/listinfo/mageia-sysadm">root at krampouezh</A> ~]# urpmq --auto-select
gandi-hosting-agent
gandi-hosting-vm
libpostfix1
postfix
[<A HREF="https://www.mageia.org/mailman/listinfo/mageia-sysadm">root at web1</A> ~]# urpmq --auto-select
gandi-hosting-agent
gandi-hosting-vm
libpostfix1
postfix
Of course, the problem is that champagne do not have enough ram, but
then I think
we could rediscuss the usage of champagne since it doesn't fullfill
newer
requirements in term of hosting.
--
Michael Scherer
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