Date: Thu, 14 Feb 2013 10:19:45 +0100 From: Oliver Brandmueller <ob@e-Gitt.NET> To: freebsd-stable@freebsd.org Subject: Re: FreeBSD 9.1 - openldap slapd lockups, mutex problems Message-ID: <20130214091945.GZ38901@e-Gitt.NET> In-Reply-To: <20130214021356.GJ46275@kyleck.poildetroll.net> References: <D9280700-5105-4068-82E2-5E353C07EC2F@free.de> <50FEB684.9040201@egr.msu.edu> <20130214021356.GJ46275@kyleck.poildetroll.net>
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[-- Attachment #1 --] Hi, On Thu, Feb 14, 2013 at 03:13:57AM +0100, Pierre Guinoiseau wrote: > > I have seen openldap spin the cpu and even run out of memory to get > > killed on some of our test systems running ~9.1-rel with zfs. [...] > I've the same problem too, inside a jail, stored on ZFS. I've tried various > tuning in slapd.conf, but none fixed the problem. While hanging, db_stat -c > shows that all locks are being used, I've tried to set the limit really high, > far more than normally needed, but it didn't help. I may have the same problem > with amavisd-new but I've to verify that to be sure the symptoms are similar. I have amd64 9.1-STABLE r245456 (about Jan 15) running. I have openldap openldap-server-2.4.33_2 running, depending on libltdl-2.4.2 and db46-4.6.21.4 . The system is zfs only (for the local filesystems, where openldap is running - it has several NFS mounts for other purposes though). It's up and running for about a month now (29 days) and never showed any problematic behaviour regarding to slapd. I have ~10 SEARCH requests per seconds avg and only minor ADD/MODIFY/DELETE operations. It has several binds und unbinds, about 1/10th of the requests. It runs in slurpd slave mode for my master LDAP. zroot/var/db runs with compression=off, dedup=off, zroot is a mirrored pool on 2 Intel SATA SSD drives inside a GPT partition. Swap is on a ZFS zvol. - Oliver -- | Oliver Brandmueller http://sysadm.in/ ob@sysadm.in | | Ich bin das Internet. Sowahr ich Gott helfe. | [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iEYEARECAAYFAlEcrDEACgkQiqtMdzjafynbhQCfWJTEf3+87ImP3I/EyhRWSXKR 5ZEAnivCDpKCN4MjGl7xNNbIbq2es3mY =d86z -----END PGP SIGNATURE-----
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