Quanah Gibson-Mount quanah@zimbra.com writes:
On deployments with multi-million users (of which we have), it is not unreasonable that between slapd/imap/pop/mysql etc for there to be a need for a high number of file descriptors in use for the zimbra user. However, I think it may be reasonable to break slapd out into its own user, so it can use a reduced set of file descriptors.
You could also limit file descriptors specifically for slapd by doing so in the slapd startup script, without running it as a different user.