On 02/05/2010 12:50 AM, Jon Forrest wrote: > 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?
Update to 5.4, at least the autofs package and the kernel, and see if the problem persists. Ian _______________________________________________ autofs mailing list [email protected] http://linux.kernel.org/mailman/listinfo/autofs
