I have some keybase.io invitations if anyone wants one.
Marcus
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Marcus Bointon
Technical Director, Synchromedia Limited
Creators of http://www.smartmessages.net/
UK 1CRM solutions http://www.syniah.com/
mar...@synchromedia.co.uk | http://www.synchromedia.co.uk/
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On 11 Nov 2013, at 13:57, Michael Brookhuis wrote:
> Is there a limit in the number of proimitives, etc you can have?
> What maximum number is recommended based on best-practices?
>
> Are 1500 to many?
I think it depends on your transport layer. If you're using heartbeat I think I
ran into a p
On 16 Oct 2013, at 16:44, Digimer wrote:
> Corosync uses the totem protocol for "heartbeat" like monitoring of the...
Thank you for the clearest summary of the HA stack I've seen so far! It should
be on the HA site somewhere (it probably is...!)
Marcus
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On 9 Aug 2013, at 06:29, Gary Mazzaferro wrote:
> Additionally, the traffic to the nodes seem interleaved, random connection
> to node1/node2 from clients.
>
> And, when I shut down node2 or place it in standby, the VIP doesn't shift
> to node1, it appears the the node1 is down.
This sounds lik
On 6 Aug 2013, at 11:10, Dejan Muhamedagic wrote:
> Which compression setting do you have now? I think you should
> try with different compression settings as suggested there by Lars.
I had no compression set at all. I added the settings as advised in that
posting and it does seem to have solve
I have two nodes running heartbeat 3.0.5 and pacemaker 1.1.6 (both from the
linux-ha lucid ppa). They are running 11 groups each comprising an
ocf:heartbeat:IPaddr2, an ocf:heartbeat:SendArp and an ocf:heartbeat:MailTo.
There is also a mailto resource configured for the overall cluster.
Despite
On 19 Apr 2013, at 16:41, "Ulrich Windl"
wrote:
> Let me comment: "crm resource migrate prm_yours PT2M" will make a constraint
> that will stay in your CIB forever also, but it's active only for 2 minutes.
Where does the 2 minutes come from? As far as I can see they stick around until
you del
On 19 Apr 2013, at 14:48, Florian Crouzat wrote:
> About move and constraints, it all goes down to a design choice, but to
> me, it makes sense (for the reasons I mentioned in my first answer) and
> it's documented, so ... :)
> When you, as
> an admin says otherwise, the cluster trusts you a
ode without creating persistent location rules?
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM solutions
mar...@synchromedia.co.uk | http://www.synchromedia.co.uk/
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rather defeat the point of unmove.
Is there a move/unmove that doesn't apply location rules, but just tells the
resource to move?
Marcus
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Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM solutions
mar...@synchromedia.co.uk | http://www.synchrom
I issue the same command again (to make it
migrate back), it does the same thing (but to the other node), pinning it hard
to its original location rather than just removing the constraint. Is there a
better way of doing this?
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.s
verage, 0% utilization) in the last 10min
There's a lot there, but nothing that clearly says "I moved proxyfloat3", or
more to the point, didn't...
Marcus
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Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM soluti
arted proxy1
ip3email (ocf::heartbeat:MailTo):Started proxy1
So if all that's true, why is that resource group still on the original node?
Is there something else I need to do?
Marcus
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Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand C
PSU; do not use the 'auto' mode!
This particular server had no IPMI/ILO facility so I couldn't tell it to turn
on that way.
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM solutions
mar...@synchromed
On 10 Dec 2012, at 02:25, Andrew Beekhof wrote:
> Its part of the distro, no need to add anything:
>
> http://clusterlabs.org/quickstart-ubuntu.html
Excellent! Thanks,
Marcus
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Is there an HA repo for Ubuntu Precise?
https://launchpad.net/~ubuntu-ha-maintainers/+archive/ppa doesn't go that far.
Marcus
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See also: http://linu
I've had a couple of
attempts at migrating to corosync, but so far I've had no success and a great
deal of confusion, even though all I'm doing is managing a single IP.
As Dmitri said, heartbeat has other strengths, especially when it comes to more
complex clusters with multiple serv
mple but really
isn't) - haproxy is incredibly easy in comparison.
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM solutions
mar...@synchromedia.co.uk | http://www.synchromedia.co.uk/
_
Try using mosh instead of ssh; it generally survives ip changes and network
outages nicely.
Marcus
Sent from my iPhone
On 5 Aug 2012, at 19:44, Arnold Krille wrote:
> Which isn't
> a problem with small http-requests but your ssh-session will fail...
___
maintainers ppa. Is corosync generally more robust than heartbeat?
Would it be worth upgrading to it?
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM solutions
mar...@synchromedia.co.uk | http://www
On 3 Jul 2012, at 12:26,
wrote:
> Out of interest Lars, why do you recommend XFS?
I'd second that. Percona has benchmarks for MySQL on XFS being in come cases
twice as fast as ext3.
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@
time because DNS lookups were failing: all points to a wider network issue.
I wonder if Linode has micro-outages on their network since we've also been
seeing some problems with mmm reporting 'network unreachable' on some other
instances at the same time.
Marcus
--
Marcus B
I've just realised I have a classic split-brain with my CRM setup. I'm running
pacemaker 1.1.6-2ubuntu0~ppa2 (installed from ubuntu-ha-maintainers-ppa-lucid)
and heartbeat 1:3.0.5-3ubuntu0~ppa1 on Ubuntu Lucid. I have 3 IPAddr2, 3
SendArp, 3 MailTo resources set up on two servers (front ends run
artbeat will 'fail back' to a
automatically if this property is on. You might want this if a is a
faster/better server.
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM solutions
mar...@synchromedia.co.uk | h
up and
running (and easily testable since it has its own IP), it just starts receiving
traffic when it gets the floating IP. I happen to be running proxies and web
servers on the same nodes, but you could split them up if you want - haproxy is
extremely fast and uses almost no resources.
Marcus
IP in front of haproxy/stunnel/apache with
GlusterFS for a shared file system. Seems about as simple as I could make it -
I don't see any point using pacemaker to manage haproxy/apache when it can all
just happen behind the floating IP.
Marcus
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Marcus Bointon
Synchromedia Limited: Creat
ais
Current DC: www5 - partition with quorum
Version: 1.1.6-9971ebba4494012a93c03b40a2c58ec0eb60f50c
2 Nodes configured, 2 expected votes
0 Resources configured.
Node www4: pending
Online: [ www5 ]
Any the wiser?
Marcus
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Marcus Bointon
Synchromedia Limited: Creators of http://www.s
o connect but reports no nodes. crm on www5 sees www4, but it's marked
as 'pending'. pcmk on www4 logs that it can see www5.
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM solutions
mar...@synchromedia.co.uk | http:
from "ver: 0" to "ver: 1" and start pacemakerd ("service
> corosync start; service pacemaker start").
OK, I've done that, but I don't think that's my problem right now! pacemakerd
is running on both nodes.
Marcus
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Marcus Bointon
Synchromedia
On 29 Feb 2012, at 14:28, Marcus Bointon wrote:
> Well since none of it's working, I have no problem throwing it all away and
> starting again!
My crashes have gone away, but I have other issues with the same server. The
corosync service starts, and is found by the
starting again!
Thanks very much,
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM solutions
mar...@synchromedia.co.uk | http://www.synchromedia.co.uk/
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x27;t know how these
programs are started.
Is this a known problem?
Marcus
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Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM solutions
mar...@synchromedia.co.uk | http://www.synchromedia.co.uk/
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- it's
great (though I hope you have automated tests for your restores as it went
through a patch late last year when they were broken!).
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM solutions
mar...@synchromedia.co.uk | http://www.s
problem I'm seeing with mmm.
(and I'm not looking to switch to DRBD!)
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK info@hand CRM solutions
mar...@synchromedia.co.uk | http://www.synchromedia.co.uk/
_
is, both floating IPs are up and it seems to be
working!
Thanks for your help,
Marcus
--
Marcus Bointon
Synchromedia Limited: Creators of http://www.smartmessages.net/
UK resellers of i...@hand CRM solutions
mar...@synchromedia.co.uk | http://www.synchromedia.co.uk/
to allow
the floating IPs to exist:
net.ipv4.ip_nonlocal_bind=1
Does all that look right? Anything I've missed? Do the floating IPs need to
appear in ha.cf as ucast lines (like my other setup)? Is my other setup wrong?
Thanks,
Marcus
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Marcus Bointon
Synchromedia Limited: Creators
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