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Description of problem:
NFS mounts can be performed in the foreground, or in the background.
Foreground mounts are tried once, and will fail immediately if there
is any problem. Background mounts allow the mount command to fork
a process if the first mount attempt fails that will run in the
background until the mount request succeeds.
Sometimes it is desirable for foreground mounts to retry, as well.
For example, a busy NFS server may drop a mount request, in which
case the mount command on the client should retry a couple of
times before giving up completely.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Try an NFS mount request with the "fg" option against a very busy
Actual Results: If the server drops the request, the mount command
will exit with an error.
Expected Results: If the server drops the request, the mount command
should retry the requests a couple of times before giving up.
Oracle has hit this problem, and would like it addressed in RHEL AS
2.1 and in RHEL 3.0.
Created attachment 106469 [details]
minimal patch to make the mount command retry NFS mount requests
here's a patch i created a couple of months ago for Oracle.
Note that these issue tracker numbers are relevant:
RHIT: 46917 (RHEL AS 2.1), 46918 (RHEL 3.0)
I'm seeing this under RH9.
Probably worth noting that the nfs(5) manpage explicitly states that a NFS
mount in the foreground "fg" will retry.
Anyone know if the bg option works as advertised? I might have to switch to
that, just to get filesystems mounted.
The RHEL2.1 IT you pointed to expressly said:
"At this time, we are not planning on adding new features to RHEL2.1. Red Hat
Enterprise Linux 2.1 has entered its Deployment Support phase.
During the Deployment Support phase, only qualified security and bug fix
errata will be applied to the Enterprise products via updates. For more
information on the Red Hat Enterprise Linux Errata Support Policy, see:
"Based on the information available in this ticket, this feature request
does not meet the criteria to qualify for an errata in the Deployment
Support phase. Thus, this feature request is being closed for the RHEL
2.1 update series."
Because of this, I am moving this bug to RHEL3, and cloning a copy for RHEL4.
Cloned bug for RHEL4 as bug 152599.
This should be fixed in util-linux-2.11y-31.7
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.
*** Bug 168810 has been marked as a duplicate of this bug. ***