On Tue, 2006-11-28 at 08:01 -0600, Gary Mills wrote:
> On Tue, Nov 28, 2006 at 11:54:55AM +0300, Igor Zhbanov wrote:
> > I need to build mail system without using uncommon hardware such as
> > shared storage connected via SCSI or fiber channel. I need
> > "software-only" solution. Can you recommend
On Tue, Nov 28, 2006 at 11:54:55AM +0300, Igor Zhbanov wrote:
> I need to build mail system without using uncommon hardware such as
> shared storage connected via SCSI or fiber channel. I need
> "software-only" solution. Can you recommend me what kind of clustered
> filesystem and/or network block
> 2006/11/27, Janne Peltonen <[EMAIL PROTECTED]>:
>> On Sat, Nov 25, 2006 at 11:56:20PM +0300, Igor Zhbanov wrote:
>> > So, what is the best way to build load-balancing Cyrus IMAP cluster?
>> > Nginx, perdition, Cyrus IMAP Aggregator, Cyrus IMAP murder, Cyrus IMAP
>> > replication?
>>
>> You forgot
2006/11/27, Janne Peltonen <[EMAIL PROTECTED]>:
On Sat, Nov 25, 2006 at 11:56:20PM +0300, Igor Zhbanov wrote:
> So, what is the best way to build load-balancing Cyrus IMAP cluster?
> Nginx, perdition, Cyrus IMAP Aggregator, Cyrus IMAP murder, Cyrus IMAP
> replication?
You forgot the simplest one
--On Friday, November 24, 2006 08:08:05 AM +0100 Simon Matter
<[EMAIL PROTECTED]> wrote:
What is really different between
using berkeley or skiplist DB for the cluster? I'm also running without
BDB but I want to understand how berkeley databases are different to
skiplist databases in a cluster
On Sat, Nov 25, 2006 at 11:56:20PM +0300, Igor Zhbanov wrote:
> So, what is the best way to build load-balancing Cyrus IMAP cluster?
> Nginx, perdition, Cyrus IMAP Aggregator, Cyrus IMAP murder, Cyrus IMAP
> replication?
You forgot the simplest one: Cyrus IMAP on a cluster with no
replication, no
On 2006. 11. 16. 22:46, Bron Gondwana wrote:
Seriously, see the other response, DbMail might be what you want -
personally I'd put blobs in the filesystem (actually, my SHA1 based
VFS system, but that's a different story) and metadata in mysql... if
I was writing my perfect IMAP solution, which I
So, what is the best way to build load-balancing Cyrus IMAP cluster?
Nginx, perdition, Cyrus IMAP Aggregator, Cyrus IMAP murder, Cyrus IMAP
replication?
And can you tell me what problems to high-availability can happen when
using Cyrus IMAP replication? In what situations it is unreliable? And
is
>> 2) Several people on this list have confirmed that they are running
>> cyrus-imapd clusters on shared storage (SAN) which works fine with a
>> cluster filesystem. That tells me that shared access to cyrus
>> databases
>> works fine as long as the filesystem used provides proper
>> locking, which
All,
> -Original Message-
> From: Janne Peltonen [mailto:[EMAIL PROTECTED]
> On Thu, Nov 23, 2006 at 08:42:16AM +0100, Simon Matter wrote:
> [...]
> > 2) Several people on this list have confirmed that they are running
> > cyrus-imapd clusters on shared storage (SAN) which works fine wit
> -Original Message-
> From: Simon Matter [mailto:[EMAIL PROTECTED]
> Hi Sarah,
>
> I'm really confused now.
>
> 1) You are talking about NAS as a possible solution and I
> don't know how
> that should work if NFS doesn't work. Until now I thought a
> NAS device is
> an embedded fil
On 11/23/06, Janne Peltonen <[EMAIL PROTECTED]> wrote:
You're completely correct, this is the kind of system I'm building and
others have had in production use (see the thread on clusters, GFS and
HA, for instance - begins at
http://www.mail-archive.com/info-cyrus@lists.andrew.cmu.edu/msg30675.ht
Hi all,
just to comment on one isolated point:
On Thu, Nov 23, 2006 at 08:42:16AM +0100, Simon Matter wrote:
[...]
> 2) Several people on this list have confirmed that they are running
> cyrus-imapd clusters on shared storage (SAN) which works fine with a
> cluster filesystem. That tells me that
> Marcelo et al,
>
>> -Original Message-
>> From: [EMAIL PROTECTED]
>> [mailto:[EMAIL PROTECTED] On Behalf Of
>> Marcelo Maraboli
>>
>> thanks for the input, I know wishing 100% is only available
>> with a gogle size amount of money ;), but I am looking
>> for a CYRUS IMAP server soluti
On 11/22/06, Sarah Walters <[EMAIL PROTECTED]> wrote:
takes us right back to the "MySQL" angle on this conversation! While
I wouldn't want to see the actual mail stored in MySQL, you could
make an argument for storing the mailboxes database in that way.
I seem to recall that's what they do with
Wesley et al,
> -Original Message-
> From: Wesley Craig [mailto:[EMAIL PROTECTED]
> Sent: Thursday, 23 November 2006 1:17 PM
> To: Sarah Walters
> Cc: info-cyrus@lists.andrew.cmu.edu
> Subject: Re: Cyrus IMAP and MySQL mailboxes (Building
> load-balancing cluster
On 22 Nov 2006, at 19:10, Sarah Walters wrote:
Only a single machine can have write privileges to the mailboxes
database at a time.
Actually, only a single process can be writing to a mailboxes
database at a time.
Then, assuming the database is closed between changes (can a
developer ple
Dear Sarah
thank you for your thorough answer !
maybe we can wait and see if Cyrus 2.3.7 and mupdate
can do the job along with FreeBSD+PEN+VRRPD...i´ll test it.
best regards,
Sarah Walters wrote:
Marcelo et al,
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
Marcelo et al,
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Marcelo Maraboli
>
> thanks for the input, I know wishing 100% is only available
> with a gogle size amount of money ;), but I am looking
> for a CYRUS IMAP server solution simi
On Fri, 17 Nov 2006, Igor Zhbanov wrote:
2006/11/17, Adam Tauno Williams <[EMAIL PROTECTED]>:
> Yes, I know how failover cluster works. But what if one server
> (active) can't process such a load? Suppose, we plan to have 100 000
> users working actively with mail. I understand that it is possi
2006/11/17, Adam Tauno Williams <[EMAIL PROTECTED]>:
> Yes, I know how failover cluster works. But what if one server
> (active) can't process such a load? Suppose, we plan to have 100 000
> users working actively with mail. I understand that it is possible to
> use one monstrous server to take a
Bron Gondwana wrote:
If your mail system is so small you can afford to put all your users
email in memory, then good for you. Otherwise, mysql replication won't
buy you much more than Cyrus replication with a few good monitoring
scripts (and yes, we have failed real cyrus replications off faile
> Yes, I know how failover cluster works. But what if one server
> (active) can't process such a load? Suppose, we plan to have 100 000
> users working actively with mail. I understand that it is possible to
> use one monstrous server to take all of the load, but I am interested
> in load-balancing
2006/11/17, Bron Gondwana <[EMAIL PROTECTED]>:
On Fri, Nov 17, 2006 at 11:54:39AM +1000, Sarah Walters wrote:
> Why don't you look at throwing two beefy boxes at this problem in a
> hot-spare
> configuration? Have a single large box managing the mail and a heartbeat
> so
> that if one goes down t
On Fri, Nov 17, 2006 at 03:31:52AM +0300, Igor Zhbanov wrote:
> Yes, I need the cluster exactly. Have I lots of domains, I could store
> mailboxes of each domain on separate server. But I have only one big
> domain. So, I need to spread mailboxes on one domain across several
> servers. And than I n
On Fri, Nov 17, 2006 at 11:54:39AM +1000, Sarah Walters wrote:
> Why don't you look at throwing two beefy boxes at this problem in a
> hot-spare
> configuration? Have a single large box managing the mail and a heartbeat
> so
> that if one goes down the other immediately takes over its IP and just
>
2006/11/17, Sarah Walters <[EMAIL PROTECTED]>:
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Igor Zhbanov
> Sent: Friday, 17 November 2006 10:32 AM
> To: info-cyrus@lists.andrew.cmu.edu
> Subject: Re: Cyrus IMAP an
> 2006/11/17, Sarah Walters <[EMAIL PROTECTED]>:
>> > > > The main problem is to build a shared storage that can
>> > survive server
>> > > > crashes, where mail will be stored.
>> > >
>> > > Use a SAN.
>> > First of all, such SAN must be very reliable itself. Second, it must
>> > support some kind
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Igor Zhbanov
> Sent: Friday, 17 November 2006 10:32 AM
> To: info-cyrus@lists.andrew.cmu.edu
> Subject: Re: Cyrus IMAP and MySQL mailboxes (Building
> load-balancing
2006/11/17, Sarah Walters <[EMAIL PROTECTED]>:
> > > The main problem is to build a shared storage that can
> survive server
> > > crashes, where mail will be stored.
> >
> > Use a SAN.
> First of all, such SAN must be very reliable itself. Second, it must
> support some kind of global locking me
> > > The main problem is to build a shared storage that can
> survive server
> > > crashes, where mail will be stored.
> >
> > Use a SAN.
> First of all, such SAN must be very reliable itself. Second, it must
> support some kind of global locking mechanism, so several nodes can
> use lock to prot
2006/11/16, [EMAIL PROTECTED] <[EMAIL PROTECTED]>:
> The short question is: can Cyrus IMAP take mail from MySQL tables?
I'm not aware of any such backend; and I think it would be a crazy
method to store mail and performance would suck. You may *THINK*
MySQL is fast, it isn't - certainly not c
On Thu, Nov 16, 2006 at 07:24:32PM +0300, Igor Zhbanov wrote:
> The main problem is to build a shared storage that can survive server
> crashes, where mail will be stored. I have found that MySQL-cluster is
> reliable and fast.
My
god.
You are aware that MySQL-cluster only supports in-memory dat
The short question is: can Cyrus IMAP take mail from MySQL tables?
I'm not aware of any such backend; and I think it would be a crazy
method to store mail and performance would suck. You may *THINK*
MySQL is fast, it isn't - certainly not compared to a filesystem
[doubly so when dealli
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