[Dovecot] too many files opened

[Tomas Janousek]

Hello,

On Wed, Aug 29, 2007 at 10:06:41AM +0800, Joshua, C.S. Chen wrote:
> My institute's mail server was upgraded to RHEL5 with dovecot 1.0-2.1rc5
> recently. And it uses PAM authentication which points to LDAP server.
> Now from time to time it gets Error like
> 
> dovecot: Aug 29 09:23:59 Error: auth(default):
> pam(joshua,192.168.177.52): pipe() failed: Too many open files

This looks similar to [221572]. We don't know what was causing that though.
I can imagine that even [154314] may be causing that (which is hopefully
getting fixed in RHEL 5.2).

[221572] https://bugzilla.redhat.com/show_bug.cgi?id=221572
[154314] https://bugzilla.redhat.com/show_bug.cgi?id=154314

> passdb:
> driver: pam
> userdb:
> driver: passwd

Please, try to use userdb ldap in dovecot.conf. That way you don't use
nss_ldap, which is buggy.

-- 
Tomas Janousek, SW Engineer, Red Hat, Inc.