Re: Very slow guest login

On Thu, Jan 10, 2019 at 2:05 PM Dashamir Hoxha <[email protected]> wrote:

> On Thu, Jan 10, 2019 at 1:27 PM Giacomo Trovato <giacomo-o6+VoJyZ4uJWk0Htik3J/[email protected]>
> wrote:
>
>> Hi All,
>>
>> on my school laboratory with LTSP-MATE (server on ESXI) I've 21 fat
>> clients that login as guest.
>>
> I just noticed that you are using a VMWare virtual machine. I don't know
anything about its performance
but a virtual machine with a virtual hard disk should be slower with disk
operations than a real HDD.
If you could attach a HDD to one of the 21 fat clients and make it a LTSP
server instead, this may improve
the performance a bit. It may be a lot of work, but this is just another
idea.

> I've the reset guest account script.
>>
>> The login is very slow when all the students login at the same time (also
>> more than 5 minutes).
>>
>> I assume that's because the script copies at the same time all the home
>> folders from the template.
>>
>> Is there any way to speedup the process?
>>
>> Perhaps executing the script at logout or with a chron job at night?
>>
> In my opinion, resetting on logout is not safe, because a client may shut
> down abruptly,
> without making a logout (for example if the power goes off). A nightly
> reset with a cron job
> is also not very safe, since there may be multiple login/logout during the
> day.
> It is up to you to decide whether these risks are acceptable for your
> case, depending on your situation.
>
> Having said that, you may speed up a bit the process if you use `rsync`
> for resetting, instead of `rm` and `cp`.
>
> Regards,
> Dashamir
>

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