[Samba] Samba 3.3.4 very slow file access times
goubeaux at education.ucsb.edu
Wed Oct 21 18:17:27 MDT 2009
At 5:10 PM -0700 10/21/09, Jeremy Allison wrote:
>On Wed, Oct 21, 2009 at 11:28:49AM -0700, John Goubeaux wrote:
>> Can anyone shed any light ( or offer dome diagnosing tips) on why I am
>> seeing a considerable time delay in opening and writing back to excel
>> files on a Samba 3.3.4 build where as the same file on an earlier build
>> (2.2.8.a) does not exhibit the same latency ??? - 11 seconds as
>> opposed to 3 seconds. The problem does not seem to be as pronounced
>> with other file types though it is still slower.
>> This problem has been plaguing me since I upgraded samba to a new host
>> and went production on it and NOW I am receiving a barrage of
>> complaints from admin staff with the "why did you break it" ? underscore
>> At this point I have ruled out the obvious. Hosts running the builds are
>> on same network, storage is faster on the new build, same ver of excel,
>> same file (7mb) accessed from same machine. Newer build is running on
>> substantially faster hardware, and storage BUT is authing against an
>> ldap backend as opposed to /etc/passwd
>Changed version of the kernel ? You might want to get debug level
>10 logs from the old and new versions and compare where things
>start being different.
Yes, completely different OS's eg Solaris 8 Sparc and Solaris 10 x86.
Which log file(s) would I want to grab that info out of ? Samba logs
to a variety of logfiles and is verbose when set at 10. If I can
isolate this specific large .xls file access in the logs this might
be a start?
I was hoping that there was some obvious setting OR difference
between the two versions of Samba that I missed AND am wondering if
others are seeing this behavior, with say MS Office apps on this ver
of Samba ?
Gevirtz Graduate School of Education
UC Santa Barbara
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