--On Friday, March 08, 2013 5:29 PM +0000 Viktor Dukhovni
<postfix-us...@dukhovni.org> wrote:
The effect of the "proxy:" prefix is to reduce the number of
processes that make LDAP connections, by pooling all the connections
via a small number of proxy processes.
On a sufficiently idle system (say a test system which only receives
intermittent email messages) the processes that are connected to LDAP
may exit when idle for long enough, and then new connections will be
made later. The same happens on systems where some misguidedly runs
"postfix reload" frequently.
This is not really the behavior I see from proxy:. For example, the
connection I pasted from this morning:
Mar 8 08:12:27 ldap01-zcs slapd[7644]: conn=29791 op=7801 SRCH
attr=zimbraMailCanonicalAddress zimbraMailCatchAllCanonicalAddress
Mar 8 08:12:27 ldap01-zcs slapd[7644]: conn=29791 op=7801 SEARCH RESULT
tag=101 err=0 nentries=0 text=
Mar 8 08:12:32 ldap01-zcs slapd[7644]: conn=29791 fd=84 closed (connection
lost)
You can see that postfix closed the connection (without sending an unbind)
5 seconds after operation 7801. Postfix has established 258 connections
since 4 am this morning, all of which it initiates a close on after some
amount of time (i.e., the LDAP server is not the one closing the
connection).
--Quanah
--
Quanah Gibson-Mount
Sr. Member of Technical Staff
Zimbra, Inc
A Division of VMware, Inc.
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