Bug 135924

Summary: Latest nfs-utils update killed speed in stat()
Product: [Fedora] Fedora Reporter: Kyrre Ness Sjøbæk <kyrsjo>
Component: nfs-utilsAssignee: Steve Dickson <steved>
Status: CLOSED NOTABUG QA Contact:
Severity: high Docs Contact:
Priority: medium    
Version: 2   
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2004-10-18 11:10:34 EDT Type: ---
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Description Kyrre Ness Sjøbæk 2004-10-15 15:34:32 EDT
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My out-of-date laptop do not have any problems, neither did the boxes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:
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Actual results:


Expected results:


Additional info:
Comment 1 Kyrre Ness Sjøbæk 2004-10-15 15:36:13 EDT
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 17:57:17 EDT
Would it be possible to get a ethereal trace
and the output of nfsstat -rc?
Comment 3 Kyrre Ness Sjøbæk 2004-10-16 14:00:37 EDT
sure, but i have to downgrade most of the boxes asap.

How do i isolate the output to NFS only?
Comment 4 Steve Dickson 2004-10-16 20:27:17 EDT
Try the capture string of "port 2049"
Comment 5 Kyrre Ness Sjøbæk 2004-10-18 10:57:50 EDT
Forget it. My mistake.

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

Sorry!