From: Jon Forrest <jlforrest@berkeley.edu>
To: autofs@linux.kernel.org
Subject: Transient Automount Problems in CentOS 5.3
Date: Thu, 04 Feb 2010 08:50:25 -0800 [thread overview]
Message-ID: <4B6AFAD1.1070601@berkeley.edu> (raw)
I have a new cluster running CentOS 5.3.
The cluster uses a Sun 7310 storage server
that provides NFS service over a private
1Gb/s ethernet with 9K jumbo frames to the
cluster.
We've noticed that a number of the compute
nodes sometimes generate the
automount[15023]: umount_autofs_indirect: ask umount returned busy /home
message. When this happens the program running on the
node dies. This has happened between 10 and 20 times.
We're not sure what's going on on a node when this
happens. Most of the time everything is fine and
the home directories are automounted without problem.
I've googled for this problem and I see that other people
have seen it too, but I've never seen a resolution,
especially not for RHEL5.
The auto.master line for this mount is
/home /etc/auto.home --timeout=1200
noatime,nodiratime,rw,noacl,rsize=32768,wsize=32768
The network interface configuration is
eth0 Link encap:Ethernet HWaddr 00:30:48:B9:F6:52
inet addr:10.1.255.233 Bcast:10.1.255.255 Mask:255.255.0.0
inet6 addr: fe80::230:48ff:feb9:f652/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1
RX packets:32999308 errors:0 dropped:0 overruns:0 frame:0
TX packets:27468315 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:24225053296 (22.5 GiB) TX bytes:73313582546 (68.2 GiB)
Interrupt:74 Base address:0x2000
The automount is
Linux automount version 5.0.1-0.rc2.102
Directories:
config dir: /etc/sysconfig
maps dir: /etc
modules dir: /usr/lib64/autofs
Compile options:
DISABLE_MOUNT_LOCKING ENABLE_IGNORE_BUSY_MOUNTS WITH_HESIOD WITH_LDAP
WITH_SASL
The kernel is 2.6.18-128.1.14.el5.
Any advice on what to do?
Cordially,
--
Jon Forrest
Research Computing Support
College of Chemistry
173 Tan Hall
University of California Berkeley
Berkeley, CA
94720-1460
510-643-1032
next reply other threads:[~2010-02-04 16:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-04 16:50 Jon Forrest [this message]
2010-02-04 16:57 ` Transient Automount Problems in CentOS 5.3 Carsten Aulbert
2010-02-04 18:09 ` Jon Forrest
2010-02-05 7:59 ` Carsten Aulbert
2010-02-05 17:10 ` Jon Forrest
2010-02-05 17:30 ` Carsten Aulbert
2010-02-05 4:42 ` Ian Kent
2010-02-05 16:31 ` Jon Forrest
2010-02-05 16:43 ` Ian Kent
-- strict thread matches above, loose matches on Subject: below --
2010-02-04 0:16 Jon Forrest
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