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Bug 517557

Summary: Need noresvport NFS mount option in kernel
Product: Red Hat Enterprise Linux 5 Reporter: Stuart Anderson <anderson>
Component: kernelAssignee: Red Hat Kernel Manager <kernel-mgr>
Status: CLOSED DUPLICATE QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: medium Docs Contact:
Priority: low    
Version: 5.3CC: jeder, jlayton
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-10-14 01:00:37 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Stuart Anderson 2009-08-14 16:26:45 UTC
Description of problem:

Unable to mount a large number of NFS clients


Version-Release number of selected component (if applicable):

2.6.18-128.1.10.el5

How reproducible:

100%

Attempt to loop over a large number of automount points.

Steps to Reproduce:
1. Try to rapidly automount more than ~350 filesystems
2. for i in `awk '{print $1}' /etc/auto.data`; do df /data/$i; done
3.
  
Actual results:

...

Filesystem           1K-blocks      Used Available Use% Mounted on
node357:/usr1        208288128  70440160 127096800  36% /data/node357
df: `/data/node358': No such file or directory
df: `/data/node359': No such file or directory
...



Expected results:

Should continue on mounting.



Additional info:

This should be solved by adding the recent noresvport NFS client kernel option to the RHEL kernel build. Note, this is a duplicate of,
https://bugzilla.redhat.com/show_bug.cgi?id=510980
that is hopefully more explicit that it is as an RFE to add a recent kernel option to support NFS on large clusters.

Comment 1 Jeremy Eder 2010-04-09 00:21:38 UTC
Is this a duplicate of https://bugzilla.redhat.com/show_bug.cgi?id=510980 ?

Comment 2 Stuart Anderson 2010-04-09 03:18:29 UTC
Yes, this is a duplicate of 510980. However, my attempt to mark it as a duplicate failed an authorization test.

Comment 3 Jeff Layton 2010-10-14 01:00:37 UTC
Thanks, closing it as a duplicate.

*** This bug has been marked as a duplicate of bug 510980 ***