High availability email server...
OK...I'm searching for strategies to have a realtime email backup in the event of backend failure. We've been running cyrus-imap for about a year and a half with incredible success. Our failures have all been due to using junky storage. One idea is to have a continuous rsync of the cyrus /var/spool/imap and /var/lib/imap to another server I've also considered delivering email to two discreet email backends and keeping the /var/lib/imap file sync'd . I don't think I can use murder to do this. Is anyone out there using RHEL in a cluster that would like to share their architecture? Any contractors out there that want to get paid to help us implement? Chad P. [EMAIL PROTECTED] Salk Institute for Biological Studies -- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
architecture: active active frontends sharing common backend
We're about to embark on a High Availability email project and I was wondering as to the feasibility of having multiple cyrus frontend machines access a single backend machine (Veritas, Netapp filer, whatever it takes etc.) The n+ front-end machines would all share a /var/lib/imap and a /var/spool/imap on the single backend machine. DB locking and other contingency issues would be left to the backend device whatever that may be. A load balancer would be placed in front of the cyrus boxes to handle failover etc. Does this work? Is anyone doing it now? Am I going about this all wrong? Please don't tell me about Murder, it's not for HA as much as it distributes load. Chad Prey Sr. Systems Administrator Salk Institute for Biological Studies -- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
Re: pop3 connection timeout lock problem
You may also be running out of randomness... thymine # cat /proc/sys/kernel/random/entropy_avail 4096 If this number is zero or very low...that could be your problem. /dev/random blocks if there's not enough randomness.../dev/urandom does not. a shot in the dark... Chad P. -- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
interpreting log messages (duplicate_suppression)
I've been experiencing some issues with disappearing email which I attribute to cyrus duplicate suppression. We found some corresponding log entries for the emails...does anyone know what the numbers 1142299048 18748 1142299050 and the 0 actually mean? Mar 13 17:17:30 thymine lmtpunix[1964]: duplicate_mark: B62595F8- [EMAIL PROTECTED] user.coyne 1142299048 18748 Mar 13 17:17:30 thymine lmtpunix[1964]: mystore: starting txn 2150126845 Mar 13 17:17:30 thymine lmtpunix[1964]: mystore: committing txn 2150126845 Mar 13 17:17:30 thymine lmtpunix[1964]: duplicate_mark: B62595F8- [EMAIL PROTECTED] [EMAIL PROTECTED] 1142299050 0 Chad Prey [EMAIL PROTECTED] -- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
lmtpunix duplicate suppression
Happy Tuesday, We seem to be experiencing some issues with lmptunix marking messages that aren't duplicates as duplicates. What would cause this issue? How would one disable duplicate suppression features in cyrus? Would that be a wise approach? Mar 14 17:02:19 cytosine lmtpunix[13729]: duplicate_mark: 4ous0s [EMAIL PROTECTED] user.koczak 1142384537 3568 Mar 14 17:02:19 cytosine lmtpunix[13729]: mystore: starting txn 2151337231 Mar 14 17:02:19 cytosine lmtpunix[13729]: mystore: committing txn 2151337231 Any assistance would be greatly appreciated. Chad Prey [EMAIL PROTECTED] -- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
cyrus email server in HA SAN configuration
All, I am about to realize my dream of having a cyrus email server with Fibre Channel SAN storage. Could any of you out the that's got one of these beasts RUNNING IN PRODUCTION tell me your setup and overall results? I am thinking about starting off with two cyrus frontends, in an active passive failover using drb. However, I would much rather use multiple frontend boxes behind a load balancer in a n+ active active configuration. Chad Prey -- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
reconstruct for folders after restore to new machine
I am running cyrus-imap version 2.2.12 and have a question about reconstruct. In attempting to reconstruct a users mailbox, reconstruct - rf username successfully finds all the messages in the inbox but does not find email in any subfolders. It does however list all the subfolders but they appear to be empty until I get on the file system and do an ls directly on the folder. TIA Chad Prey -- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
lost emails in cyrus
All, I have reports of users missing email. In every case it appears that the duplicate checker may be involved. Can anyone help to shed some light on this problem? Aug 12 11:31:13 cytosine lmtpunix[7888]: duplicate_check: [EMAIL PROTECTED] user.mchu0 Aug 12 11:31:13 cytosine lmtpunix[8000]: duplicate_check: [EMAIL PROTECTED] user.mchu.Junk 0 Aug 12 11:31:13 cytosine lmtpunix[7888]: mystore: starting txn 2147669265 Aug 12 11:31:13 cytosine lmtpunix[7888]: mystore: committing txn 2147669265 Aug 12 11:31:13 cytosine lmtpunix[7888]: duplicate_mark: [EMAIL PROTECTED] user.mchu 1123871473 11187 Is the duplicate checker seeing 11187. as being a duplicate? What exactly is lmtpunix telling me in the log? -- Chad A. Prey Sr. Systems Administrator Salk Institute for Biological Studies cell - (858)967-1051 phone - (858) 453-4100 x 1930 Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
cyrus-IMAP cluster
I am wondering if any of you out there are running cyrus in a cluster? If so, how did you do it? and how would you do it if you had to do it all over again? We are currently using cyrus with perdition which works fine, however, ideally the situation would be that a user could connect to either IMAP server though a load-balancer with the /var/spool/imap folders shared between both machines on a Fibre channel disk array. We only have 1200 users but they are heavy, abusive users. Our current cyrus build is on WBEL (like RHEL) 2.4 kernel. I am especially keen to hear from those that have actually done this. -- Chad A. Prey Sr. Systems Administrator Salk Institute for Biological Studies cell - (858)967-1051 phone - (858) 453-4100 x 1930 --- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
migrate mail from Gordano mail server
We are currently running a mail server called Gordano which is no longer sufficient for our needs and we're trying to migrate the mail from Gordano to Cyrus-IMAP. We've written some perl scripts to handle putting the mail into Cyrus IMAP compliant directories...it works great. Now we need a system to set the state flags. I don't expect anyone else to have experience with Gordano...I just need to know what is in the state databases and what format so I can have a perl script create them for me. -- Chad A. Prey prey who is at salk.edu Salk Institute --- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
