On Wed, 15 Feb 2017 08:43:23 +0530 Rajesh M wrote:
> christian
>
> the servers i currently own are dell servers. The servers i plan to buy are
> Dell R530, 2U rack servers with 8 x 3.5 inch drives, with 64 gb ram each,
> Hardware raid. I am thinking of 2 X 300 gb ssds raid1 and 6 x 2 tb drives
christian
the servers i currently own are dell servers. The servers i plan to buy are
Dell R530, 2U rack servers with 8 x 3.5 inch drives, with 64 gb ram each,
Hardware raid. I am thinking of 2 X 300 gb ssds raid1 and 6 x 2 tb drives in
raid10 for data. I do not have any experience in setting
On Tue, 14 Feb 2017, KT Walrus wrote:
Another related security situation I've encountered is when a fraudster
has phished a user's password. A user/admin changes the password,
but forgets to invalidate dovecot's cached entry, allowing the fraudster
contunuing access to the mail account until th
> On Feb 14, 2017, at 5:50 PM, Joseph Tam wrote:
>
> Another related security situation I've encountered is when a fraudster
> has phished a user's password. A user/admin changes the password,
> but forgets to invalidate dovecot's cached entry, allowing the fraudster
> contunuing access to the
Rajesh M wrote:
i wish to improve the performance further by caching the logins.
current the same is kept disable because when user's change passwords
then they are not able to immediately login with the new password for
some time. How to solve this issue.
Dovecot shouldn't be doing that. Ac
Hello,
On Mon, 13 Feb 2017 22:53:23 +0530 Rajesh M wrote:
> thanks for your help
>
> happy to say that the performance dramatically improved after i use the high
> performance settings from here
> http://wiki.dovecot.org/LoginProcess
>
That's why that page is there.
> grep Login: /var/log/ma
thanks for your help
happy to say that the performance dramatically improved after i use the high
performance settings from here
http://wiki.dovecot.org/LoginProcess
grep Login: /var/log/mail.log.1 |wc -l
with the mail.log being of a typical, busy day.
412992
i also picked up the imap and pop3
Hello,
On Sun, 12 Feb 2017 08:27:21 -0500 KT Walrus wrote:
> Thanks for the info. I do have one further question for you. On your servers
> that are currently handling 50k IMAP sessions, how many users does that
> correspond to? Since many users will have multiple IMAP sessions on multiple
>
Thanks for the info. I do have one further question for you. On your servers
that are currently handling 50k IMAP sessions, how many users does that
correspond to? Since many users will have multiple IMAP sessions on multiple
devices, I’d like to hear about some real-world numbers that could be
Hello,
On Fri, 10 Feb 2017 14:50:03 -0500 KT Walrus wrote:
> > 1. 256GB of real RAM, swap is for chums.
>
> Are you sure that 100,000 IMAP sessions wouldn’t work well with SWAP,
> especially with fast SSD storage (which is a lot cheaper than RAM)?
>
I'm sure about tax and death, not much el
On Fri, 10 Feb 2017 14:59:51 -0800 (PST) Joseph Tam wrote:
> "Rajesh M" <24x7ser...@24x7server.net> writes:
>
> > during peak times here are the results for connections
> >
> > [root@ns1 domains]# doveadm who |grep imap |wc -l
> > username# proto (pids)
Hello,
On Fri, 10 Feb 2017 21:59:49 +0530 Rajesh M wrote:
You replied below my signature, making a normal reply/quotation impossible
for decent mail clients, which is worse than top-quoting.
Please reply in-line or at the top if must be.
> thanks christian
>
> during peak times here are the
"Rajesh M" <24x7ser...@24x7server.net> writes:
during peak times here are the results for connections
[root@ns1 domains]# doveadm who |grep imap |wc -l
username# proto (pids) (ips)
631
[root@ns1 domains]# doveadm who |grep pop3 |wc -l
username
> 1. 256GB of real RAM, swap is for chums.
Are you sure that 100,000 IMAP sessions wouldn’t work well with SWAP,
especially with fast SSD storage (which is a lot cheaper than RAM)?
Seems that these IMAP processes are long lived processes (idling most of the
time) that don’t need that much of th
- Original Message -
From: Christian Balzer [mailto:ch...@gol.com]
To: dovecot@dovecot.org
Cc: 24x7ser...@24x7server.net
Sent: Fri, 10 Feb 2017 17:58:58 +0900
Subject:
On Fri, 10 Feb 2017 01:13:20 +0530 Rajesh M wrote:
> hello
>
> could somebody with experience let me know the dovecot con
On Fri, 10 Feb 2017 07:59:52 -0500 KT Walrus wrote:
> > 1500 IMAP sessions will eat up about 3GB alone.
>
> Are you saying that Dovecot needs 2MB of physical memory per IMAP session?
>
That depends on the IMAP session, read the mailbox size and index size,
etc.
Some are significantly larger:
-
> 1500 IMAP sessions will eat up about 3GB alone.
Are you saying that Dovecot needs 2MB of physical memory per IMAP session?
If I want to support a max 100,000 IMAP sessions per server, I should configure
the server to have at least 200GBs of SWAP?
> On Feb 10, 2017, at 3:58 AM, Christian Balze
On Fri, 10 Feb 2017 01:13:20 +0530 Rajesh M wrote:
> hello
>
> could somebody with experience let me know the dovecot config file settings
> to handle around 1500 simultaneous connections over pop3 and 1500 connection
> over imap simultaneously.
>
Be very precise here, you expect to see 1500
hello
could somebody with experience let me know the dovecot config file settings to
handle around 1500 simultaneous connections over pop3 and 1500 connection over
imap simultaneously.
my server
server configuration
hex core processor, 16 gb ram 1 X 600 gb 15 k rpm for main drive and 2 X 2000
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