On 22/11/2011 15:52, Andy Bennett wrote: > Hi, > >> I enabled replication between two servers with version 2.4.10 cyrus. >> I set the option for the rolling replication, and it works fine but >> obviously I have a high CPU load. >> Unfortunately after 10 minutes of running processes pop3d increasing >> from 50 to over 200, making the server unusable for customers. >> Can you tell me why this increase is abnormal? > Can you use something like 'top' to work out which processes are > consuming most of the CPU time? This screenshot of top before : http://www.digicolor.net/cyrus/img1.jpg and after 20 minutes of rooling replication : http://www.digicolor.net/cyrus/img5.jpg > > Can you use something like 'vmstat 1' to show us how much I/O there is > on the system? This screenshot of top before : http://www.digicolor.net/cyrus/img3.jpg and after 20 minutes of rooling replication : http://www.digicolor.net/cyrus/img6.jpg > > > Are most of the pop3d processes sleeping in iowait? > Do you use any other servers such as the impad? Yes I have imapd This is screenshot of pstree before : http://www.digicolor.net/cyrus/img2.jpg This is screenshot of pstree after : http://www.digicolor.net/cyrus/img4.jpg Regards, Obe. -- Oberdan Albertoni ----------------------------------------------------------------------------------------------------------------------------------------------------------- DIGICOLOR.NET s.r.l. Via Ala Ponzone, 30 - 26100 CREMONA (CR) Tel. +39 (0372) 30669 - 1965101 - 1951509 Fax +39 (0372) 464840 E-mail info@xxxxxxxxxxxxx - Website http://www.digicolor.net C.F / P.IVA 01227520192 - R.E.A. CR n. 153382 - Capitale Sociale € 10.400 i.v. Filiale di Codogno Via Galilei, 17 – 26845 CODOGNO (LO) Tel. +39 (0377) 741006 – 431931 Fax +39 (0372) 464840 E-mail info.codogno@xxxxxxxxxxxxx - Website http://www.digicolor.net ----------------------------------------------------------------------------------------------------------------------------------------------------------- Ai sensi del D.lgs n.196 del 30.06.03 (Codice Privacy) si precisa che le informazioni contenute in questo messaggio sono riservate e ad uso esclusivo del destinatario. Qualora il messaggio in parola Le fosse pervenuto per errore, La preghiamo di eliminarlo senza copiarlo e di non inoltrarlo a terzi, dandocene gentilmente comunicazione. Grazie This message, for the D.lgs n.196 / 30.06.03 (Privacy Code), may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation. ----------------------------------------------------------------------------------------------------------------------------------------------------------- ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/
