RE: [Samba] samba is extremly slow! (a bit long)

2004-03-30 Thread David Brodbeck


> -Original Message-
> From: Preisinger Áron [mailto:[EMAIL PROTECTED]

> All of the files what we want to use(example .xls, .doc, 
> .txt, and other 
> files of not M$ specific apps). Sometimes the big files are doing the 
> same with one user only.
> I'll try the veto oplocks for the most frequently used files.

Oplocks allow the client to cache the file locally.  They can improve
performance if only one person is using a file.  However, if multiple people
are accessing the same file they can slow things down and increase network
traffic.
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Re: [Samba] samba is extremly slow! (a bit long)

2004-03-30 Thread Preisinger Áron
David Brodbeck wrote:

The first thing I would do is rule out a network problem.  Try using 
FTP or
SCP to copy a file to and from the Samba server from another machine.  If
 

Oke, thats correct, but is in the normal usage of clients not in copy 
from server to server..

that's slow, too, you need to check your network for problems.  Incorrect
duplex settings are one possibility.  (A computer set to full-duplex 
talking
to a half-duplex hub, or a switch set to full-duplex talking to a 
computer
set to half.  The collisions will only show up on the half-duplex end.)
 

All of our cards are 3c905c or newer and fullduplex switches.

It's common for a network with a bad cable or other problems to seem 
to work
 

I will test the cables, but I don't think they are wrong.

fine for moving small files or ping packets around, but to break down 
under
a heavier load.
 

What types of files are you seeing this problem with?  If you're using
shared database type files, like Microsoft Access MDB or Paradox DB 
files,
you should veto oplocks for those file types.
 

All of the files what we want to use(example .xls, .doc, .txt, and other 
files of not M$ specific apps). Sometimes the big files are doing the 
same with one user only.
I'll try the veto oplocks for the most frequently used files.

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RE: [Samba] samba is extremly slow! (a bit long)

2004-03-30 Thread David Brodbeck
> -Original Message-
> From: Preisinger Áron [mailto:[EMAIL PROTECTED]

> I am in a very big trouble. I migrated our Novell to samba 
> 3.0.2a a week 
> ago. It works, but it is very-very slow!

The first thing I would do is rule out a network problem.  Try using FTP or
SCP to copy a file to and from the Samba server from another machine.  If
that's slow, too, you need to check your network for problems.  Incorrect
duplex settings are one possibility.  (A computer set to full-duplex talking
to a half-duplex hub, or a switch set to full-duplex talking to a computer
set to half.  The collisions will only show up on the half-duplex end.)
It's common for a network with a bad cable or other problems to seem to work
fine for moving small files or ping packets around, but to break down under
a heavier load.

> The main problem is when more than one people want to use a 
> file it get 
> slower and slower and slower... and I don't understand why?

What types of files are you seeing this problem with?  If you're using
shared database type files, like Microsoft Access MDB or Paradox DB files,
you should veto oplocks for those file types.
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