[rt-users] RT Sending Email too SLOW

[Kenneth Marshall]

Hi Naresh,

One thing that may be worth doing is to run a local caching
DNS server. This can help prevent transient DNS problems with
your ISP from tanking your RT performance. The best one that
I know of and that we use on our RT system is called
pdns-recursor-3.3. You can get it from www.powerdns.com as
a free download. I am glad that you got it all working again.

Cheers,
Ken

On Thu, Dec 09, 2010 at 11:42:49PM +0000, Naresh Maharaj wrote:
> Dear Ruslan
> 
> 
> Thank you - have done all of this already.
> 
> Just checked the DNS Servers we use and it seems our ISP had not informed us
> of a change to the DNS address.
> 
> Made a change to /etc/resolve.conf
> 
> added the new DNS server address and hey presto !!!
> 
> Super fast
> 
> Kind regards
> 
> 
> Naresh Maharaj,
> 
> Hewitt & May (Shirtmakers) Ltd
> email: info at hewittandmay.com
> web: http://www.hewittandmay.co.uk
> 
> 
> 
> 
> 
> 
> On 9 December 2010 23:39, Ruslan Zakirov <ruz at bestpractical.com> wrote:
> 
> > Hi,
> >
> > The following may help you
> > http://requesttracker.wikia.com/wiki/SendmailTips
> >
> > On Fri, Dec 10, 2010 at 12:48 AM, Naresh Maharaj
> > <naresh at hewittandmay.com> wrote:
> > > Hi
> > >
> > > We really need some help resolving the slow email issue.
> > > I have been researching this for over 2 weeks now before calling our to
> > > RT_Users.
> > > I have searched all of the below,
> > >
> > > http://wiki.bestpractical.com/
> > > http://gossamer-threads.com/lists/rt/
> > > http://www.google.com/
> > >
> > > and much wider across the Internet. Almost given up!!
> > >
> > > ++Description:
> > > Overall there are no issues with email leaving RT - email reaches all
> > > destinations
> > > There are no issues raising tickets into the queue via email.
> > > Overall speed of moving around RT Web front end is fast / acceptable
> > >
> > > ++Issue:
> > > replying to a ticket takes up to 30 seconds to complete and sending the
> > > email in some cases up to 1 min.
> > > this is simply prohibitive to use in a professional setup.
> > >
> > > ++Other Issues:
> > > Squirrel Mail (Linux Web Mail) has the same issue, up to 30 seconds to
> > send
> > > an email - no solution
> > > SSH to shell remotely same problem 30s - Now resolved by removing the DNS
> > > lookup: /etc/ssh/sshd_config  [UseDNS no]
> > > SFTP - Slow 30 sec - fixed by line above
> > > Sendmail takes 30 sec to send an email from command line test an issue we
> > > have had with php apps for over a year - now resolved by :
> > > Edit the sendmail.cfg
> > >
> > > Was:
> > > # pass to name server to make hostname canonical
> > > R$* $| $* < @ $* > $*          $: $2 < @ $[ $3 $] > $4
> > >
> > > Now:
> > > # pass to name server to make hostname canonical
> > > #R$* $| $* < @ $* > $*          $: $2 < @ $[ $3 $] > $4
> > >
> > > OR
> > > sendmail.mc
> > > Add:
> > > FEATURE(`nocanonify')dnl
> > >
> > > then rebuiuld sendmail using m4
> > >
> > > Sendmail now blistering fast.
> > >
> > > ++RT mail Configuration:
> > > Previously I was using sendmailpipe
> > > $MailCommand = 'sendmailpipe';
> > > $SendmailArguments = "-oi -t";
> > > $SendmailPath = "/usr/sbin/sendmail";
> > >
> > > Now that I have confirmed that Sendmail is NOT the issue I am now using:
> > > $MailCommand = 'sendmailpipe';
> > > #$SendmailArguments = "-oi -t";
> > > $SendmailArguments = "-oi -ODeliveryMode=b -OErrorMode=m";
> > > $SendmailPath = "/usr/sbin/sendmail";
> > >
> > > Also have soft link:
> > > /etc/smrsh/rt-mailgate -> /opt/rt3/bin/rt-mailgate
> > >
> > > Note sure what else to test.
> > >
> > > The common denominator here is Apache Http
> > > So here is the conf entry for RT:
> > >
> > >
> > > [root at caitanya conf]# diff httpd.conf httpd.conf.working.20101126
> > > 997,1015d996
> > > < Alias /rt "/opt/rt3/share/html"
> > > < PerlModule Apache::DBI
> > > < PerlRequire /opt/rt3/bin/webmux.pl
> > > < <Directory /opt/rt3/share/html>
> > > <   AllowOverride All
> > > <   Options ExecCGI FollowSymLinks
> > > <   <IfModule mod_access.c>
> > > <         Order allow,deny
> > > <       Allow from all
> > > <   </IfModule>
> > > < </Directory>
> > > <
> > > < <Location /rt>
> > > <   RewriteEngine On
> > > <   RedirectMatch permanent (.*)/$ $1/index.html
> > > <   AddDefaultCharset UTF-8
> > > <   SetHandler perl-script
> > > <   PerlHandler RT::Mason
> > > < </Location>
> > >
> > > Appreciate any help that one can give.
> > > Its the only issue stopping us from moving RT from test environment to
> > > production.
> > >
> > > Naresh Maharaj,
> > >
> > > Hewitt & May (Shirtmakers) Ltd
> > > email: info at hewittandmay.com
> > > web: http://www.hewittandmay.co.uk
> > >
> >
> >
> >
> > --
> > Best regards, Ruslan.
> >
> 
> 
> 
> --