cyrus imap slow on Fedora 13&14

[Damijan Senčar]

On 12/21/2010 09:39 PM, Damijan Senc(ar wrote:
> Hi!
>
> I migrated cyrus imap server  from an old fedora to Fedora 13
> (cyrus-imapd-2.3.16-3.fc13.i686).
> Works well and fast in  LDAP+Postfix+sasl environment from Thunderbird
> client.
> The problem is when user read big mail boxes (e.g. 1000+ mail in one
> folder) from webclient (Squirrelmail) installed on same or other server.
> The same squirrelmail installation (I only changed imap server address)
> worked well in combination with older cyrus installations.
>
> Now I tried to find out what is wrong and only thing I found is that
> during reading mail from imap server from web client top command shows
> on imap server 100%wa!
> I tried fresh installation on F13 with same outcome.
>
> An idea what could be the cause of that problems?
>
> Thanks,
>
> DS
>
> ----
> Cyrus Home Page: http://www.cyrusimap.org/
> List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/
>   

More on solution at:

https://bugzilla.redhat.com/show_bug.cgi?id=665309


In short you have to turn the "S" attribute on imap folders off (e.g.
chattr -R -S /var/spool/imap )


I tested it and it solves performance problems.



Damijan