[courier-users] Time-out with courier-imap 1.7 => linked with nfs problem ??

[JF Guilmard]

Hi,   I'm experiencing a problem with my courier-imap features.   In fact the load of my server is growing a lot without any reason: there is no process that really have a high cpu load when i do a "top". So it's seems that the load is used by the kernel. On the client, at the same time ( i.e randomly about once or twice a day ), there is a time out when trying to access the mails using IMAP.   My config is: * courier-imap 1.7.0 * vpopmail 5.2.1 * q-mail 1.03 * qcontrold 1.7 * maildrop 1.5.2 * A storage on NAS using nfs     There is something weird at /var/log/messages when the pb occurs:   Jun  8 04:26:33 anarki kernel: nfs: server xxx.xxx.xxx.xxx not responding, still trying Jun  8 04:26:35 anarki kernel: nfs: server xxx.xxx.xxx.xxx OK   And last but not least, it seems that a privileged user has a very big MailBox ( almost 4giga) and the problem occurs almost at the time when he makes a search in his mailbox.     So, do you guys have an idea about what's happen ? Is it linked to this huge mailbox ? Is there a solution, a test or something else in order to be sure that this is the cause of the failure ? Is there a way to accelerate the searches ?     Thks a lot   Jef