On Fri, 23 Oct 2009, Bron Gondwana wrote:
I've seen heartbeat get split brain before. We gave up on it. We do
all our fencing via humans now! Check the KVM, kick the box, manually
run the failover script.
Some of my colleagues have had a lot of grief with Heartbeat going split
brain. It
On 10/23/09 7:42 AM, David Carter wrote:
On Fri, 23 Oct 2009, Bron Gondwana wrote:
I've seen heartbeat get split brain before. We gave up on it. We do
all our fencing via humans now! Check the KVM, kick the box, manually
run the failover script.
Some of my colleagues have had a lot of
Sujet: Re: cyrus replication : master to replica and replica to master
Date: Thu, 22 Oct 2009 15:20:09 +1100me
Well - it's theoretically possible. But I don't know anyone who's done
it, and it has the potential to get ugly if you're delivering to the
same mailboxes at each end. There's
i'm very surprised that there is not really official point from cyrus-imap
dev team against using cyrus in cluster active/active mode
I can't comment, but I guess they're busy.
Since serverals years the messaging service become very important and the
clustering system is the right way to
On Wed, Oct 21, 2009 at 9:20 PM, Rob Mueller r...@fastmail.fm wrote:
...
The difference between in theory this would work and the practice of
actually doing it are huge. Basically it works only if you are 100% sure
that only one side is ever being accessed at a time. eg. IMAP/POP/LMTP/etc.
On Thu, Oct 22, 2009 at 12:56:03AM -0700, Jon . wrote:
On Wed, Oct 21, 2009 at 9:20 PM, Rob Mueller r...@fastmail.fm wrote:
...
The difference between in theory this would work and the practice of
actually doing it are huge. Basically it works only if you are 100% sure
that only one side
On Thu, Oct 22, 2009 at 12:56:03AM -0700, Jon . wrote:
On Wed, Oct 21, 2009 at 9:20 PM, Rob Mueller r...@fastmail.fm wrote:
...
The difference between in theory this would work and the practice
of
actually doing it are huge. Basically it works only if you are 100%
sure
that only one side
On Thu, 22 Oct 2009, David Touzeau wrote:
On Thu, Oct 22, 2009 at 12:56:03AM -0700, Jon . wrote:
On Wed, Oct 21, 2009 at 9:20 PM, Rob Mueller r...@fastmail.fm wrote:
...
The difference between in theory this would work and the practice
of
actually doing it are huge. Basically it works only
On Thu, Oct 22, 2009 at 02:43:35PM -0700, David Lang wrote:
implementing this should not be that hard
allow non-local bind in /etc/sysctl
heartbeat (linux-ha.org) can handle moving the service IP and fencing (up to
and
including turning a box off if the cluster decides that it has
Client A: upload message to Inbox, gets UID 100
At the same time, Client B: upload message to Inbox, gets UID 100
You can't have two messages with the same UID.
There's 3 solutions I can see:
1. Mysql solves this by having interleving id's on separate servers (eg.
auto-increment column
Dear
I have set cyrus-imap with master and replica.
This configuration is a kind of cluster Active/passive
I would like to know if it is possible to SET the replica has the master
too
in order to replicate new mail saved on the replica to the master and
vis versa
In this case it should be
On Wed, Oct 21, 2009 at 08:45:11PM +0200, David Touzeau wrote:
Dear
I have set cyrus-imap with master and replica.
This configuration is a kind of cluster Active/passive
I would like to know if it is possible to SET the replica has the master
too
in order to replicate new mail saved
Well - it's theoretically possible. But I don't know anyone who's done
it, and it has the potential to get ugly if you're delivering to the
same mailboxes at each end. There's nothing I can see that would
actually stop it working.
I think Bron failed to put sufficiently large warning signs
Dear
I have set cyrus-imap with master and replica.
This configuration is a kind of cluster Active/passive
I would like to know if it is possible to SET the replica has the master
too
in order to replicate new mail saved on the replica to the master and
vis versa
In this case it should be
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