Hello Quanah, Our slapd uses back-meta to communicate to other slapds. We have to fulfill some requirements related with bandwith with network latencies and packet loss between slapds, to fulfill such requirements we need to increase these threads. Best Regards -----Original Message----- From: Quanah Gibson-Mount [mailto:quanah@zimbra.com] Sent: viernes, 20 de mayo de 2011 19:01 To: Jorge Perez Burgos; openldap-its(a)openldap.org Subject: Re: (ITS#6944) Add option to limit or remove operation list cache --On May 19, 2011 8:03:00 AM +0000 jorge.perez.burgos(a)ericsson.com wrote: Why do you have 256 thread set? Do you have a 64-core box? --Quanah -- Quanah Gibson-Mount Principal Software Engineer Zimbra, Inc -------------------- Zimbra :: the leader in open source messaging and collaboration