Bug 135924

Summary:	Latest nfs-utils update killed speed in stat()
Product:	[Fedora] Fedora	Reporter:	Kyrre Ness Sjøbæk <kyrsjo>
Component:	nfs-utils	Assignee:	Steve Dickson <steved>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	medium
Version:	2
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2004-10-18 15:10:34 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 Kyrre Ness Sjøbæk 2004-10-15 19:34:32 UTC

Description of problem:
At thursday morning, nfs suddenly became *very* slow. So slow that
loging in to the boxes took 3 minutes instead of 5 secounds - this
problem has been windows-only so far (luckily i don't administer thos
e boxes).

After some digging, if found that the problem probably was do to slow
responce from stat() - ls (which is an alias to ls --colours) tok 10
secounds in /home, while /bin/ls tok 0.01 secound.

The machines mount their /home over version 2 nfs from a debian box, 

My out-of-date laptop do not have any problems, neither did the boxes
have before the upgrade.

It seems like transfer rate is okay, but opening/closing a file takes
_a while_.

Version-Release number of selected component (if applicable):
nfs-utils 1.06-22.i386

How reproducible:


Steps to Reproduce:
1.
2.
3.
  
Actual results:


Expected results:


Additional info:

Comment 1 Kyrre Ness Sjøbæk 2004-10-15 19:36:13 UTC

BTW how do i rollback (ie. where do i find a functional RPM? CD's?)
and prevent yum from re-installing the faulty RPM? i use "nightly yum
update". Guess i shouldn't...

Comment 2 Steve Dickson 2004-10-15 21:57:17 UTC

Would it be possible to get a ethereal trace
and the output of nfsstat -rc?

Comment 3 Kyrre Ness Sjøbæk 2004-10-16 18:00:37 UTC

sure, but i have to downgrade most of the boxes asap.

How do i isolate the output to NFS only?

Comment 4 Steve Dickson 2004-10-17 00:27:17 UTC

Try the capture string of "port 2049"

Comment 5 Kyrre Ness Sjøbæk 2004-10-18 14:57:50 UTC

Forget it. My mistake.

The problem was not NFS, it was LDAP. Which matches with the libuser
libary was just updated.

Sorry!