[Date Prev][Date Next]
[Chronological]
[Thread]
[Top]
Repost: "Deferring operation" messages, slow operation?
Good day,
I posted this message a week ago- unfortunately, I didn't receive a reply.
Is there anyone who has any idea what could be causing this?
Thanks,
============================
Darren Gamble
Planner, Regional Services
Shaw Cablesystems GP
630 - 3rd Avenue SW
Calgary, Alberta, Canada
T2P 4L4
(403) 781-4948
> -----Original Message-----
> From: Darren Gamble
> Sent: Wednesday, November 05, 2003 3:43 PM
> To: 'openldap-software@OpenLDAP.org '
> Subject: "Deferring operation" messages, slow operation?
>
>
> Good day,
>
> We've been trying out OpenLDAP 2.1.22, and are considering
> migrating some
> data to it. The machine in question is a dual zeon 2.8GHZ (4 procs w/
> hyperthreading) w/ 2.5GB of RAM, running Red Hat 9. We
> installed openldap
> by recompiling the source RPM from Rawhide
> (openldap-2.1.22-8) which uses
> Berkeley DB by default. The RPM version of BDB is "4.0.14",
> but the version
> reported by slapd when it starts is "Sleepycat Software:
> Berkeley DB 4.1.25:
> (December 19, 2002)" - the latter which I presume is correct.
>
> We're using ldbm instead of bdb because we have aliases in
> our data, and bdb
> doesn't support aliases yet, apparently.
>
> Unfortunately, the server's performance is so far noticeably
> worse than our
> 2.0.27 servers w/ gdbm which is even running on slower hardware. In
> particular, when testing the server with queries, the message
> "deferring
> operation" shows up very, very frequently. Searching on
> Google and the
> mailing list archives comes up with mostly unanswered pleas
> for help (and
> there's nothing in the FAQ), with the exception of one user
> who had a very
> large amount of threads running. But, when testing, the
> number of threads
> only hits 10 - 20 threads, and slapd is using less than 1% of
> the memory on
> the machine. The machine isn't doing anything else.
>
> The configuration is pretty standard, although we did set
> "cachesize" to
> 100000 on both the old and new servers. This name doesn't
> appear in the
> 2.1.22 man page, so we're not even sure if it's supported anymore.
>
> Could someone tell us what this message means, and if it
> indicates a problem
> with the server? Is there anything else that might cause the general
> slowness of it?
>
> Thanks in advance!
>
> ============================
> Darren Gamble
> Planner, Regional Services
> Shaw Cablesystems GP
> 630 - 3rd Avenue SW
> Calgary, Alberta, Canada
> T2P 4L4
> (403) 781-4948
>