Running Clipper programs in network environment

Running Clipper programs in network environment

[Gábor Dukai]

Hello!
I have a small office network (4-6 clients), where we have to use a 
Clipper-based program for bookeeping. First, we used an old NetWare as a 
server, then I replaced it with linux+Samba. It worked for a month but 
we had some corruption in the databases. Browsing the Net for a new 
solution I have found an interesting one which was discussed on this 
list a year ago or so. Now the server runs multiple instances of dosemu 
and the clients access them through X. Now we have no corruption but it 
gets really slow around 4 clients connected (with 1-2 clients dosemu 
runs well). Is it possible to speed it up somehow (new hardware?) or I 
have found a theorically wrong solution again?


Thank you for your help,
Gábor Dukai


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Re: Running Clipper programs in network environment

[John Charlton]

On Saturday 04 October 2003 05:53, Gábor Dukai wrote:
> Hello!
> I have a small office network (4-6 clients), where we have to use a
> Clipper-based program for bookeeping. First, we used an old NetWare as a
> server, then I replaced it with linux+Samba. It worked for a month but
> we had some corruption in the databases. Browsing the Net for a new
> solution I have found an interesting one which was discussed on this
> list a year ago or so. Now the server runs multiple instances of dosemu
> and the clients access them through X. Now we have no corruption but it
> gets really slow around 4 clients connected (with 1-2 clients dosemu
> runs well). Is it possible to speed it up somehow (new hardware?) or I
> have found a theorically wrong solution again?
>
>
> Thank you for your help,
> Gábor Dukai

The corruption of the databases you had with linux/samba is probably due to 
file sharing/locking problems.  We have tested file locking/sharing with 
dosemu 1.1.5.0 and freedos kernel.sys 2032 (no share.exe needed for dosemu) 
using nfs mounted network drives with linux/dosemu clients.  File 
sharing/locking works well with this configuration  We are not using clipper, 
but if clipper supports multiuser file locking/sharing it should work.  We 
have not tested locking with samba mounted network drives.

--John

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Re: Running Clipper programs in network environment

[Justin Zygmont]

there should be a way, especially with the newer versions of dosemu since 
there was some work done to almost double its speed in some cases.  what 
version of dosemu do you use and what is your $hogthreshhold setting set 
to?


On Sat, 4 Oct 2003, Gábor Dukai wrote:

> Hello!
> I have a small office network (4-6 clients), where we have to use a 
> Clipper-based program for bookeeping. First, we used an old NetWare as a 
> server, then I replaced it with linux+Samba. It worked for a month but 
> we had some corruption in the databases. Browsing the Net for a new 
> solution I have found an interesting one which was discussed on this 
> list a year ago or so. Now the server runs multiple instances of dosemu 
> and the clients access them through X. Now we have no corruption but it 
> gets really slow around 4 clients connected (with 1-2 clients dosemu 
> runs well). Is it possible to speed it up somehow (new hardware?) or I 
> have found a theorically wrong solution again?
> 
> 
> Thank you for your help,
> Gábor Dukai
> 
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-msdos" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

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