mnemosyne and deep freeze

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Mark

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Nov 21, 2012, 9:51:58 AM11/21/12
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On the classroom computers at my school, we have Deep Freeze running -- which resets the hard drive back to "safe" state at each reboot.

Unfortunately, this means the Mnemosyne usage history data is being lost too at the end of each day when the computers are turned off.
So all cards, on the next day, look like it's the first time they have ever been accessed.

It is basically impossible to get the computer setups changed....  certainly not in the middle of the term.

So, my question is.... maybe I could have Mnemosyne keep its usage data on a network drive...somewhere off the local hard drive which is under Deep Freeze control.

Also, I cant keep it on a USB flash drive...because the students will lose that as soon as I blink my eyes.

Thanks




Peter Bienstman

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Nov 21, 2012, 9:57:05 AM11/21/12
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Mnemosyne uses sqlite as database layer, which specifically warns
against putting databases on a Windows network drive in order to prevent
data corruption.

You could have a Mnemosyne sync server running on a different computer,
but that is currently single user only.

I'm afraid the USB key is still the most valid option...

Peter
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Murat Sincan

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Nov 21, 2012, 10:03:16 AM11/21/12
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You can keep your daatabase file in a network drive and tell mnenosyne to open that file, as long as the link to "default.db" persists after deep freeze reset you should have your metadata retained between resets.
Murat 


On Wed, Nov 21, 2012 at 9:57 AM, Peter Bienstman <Peter.B...@ugent.be> wrote:
Mnemosyne uses sqlite as database layer, which specifically warns against putting databases on a Windows network drive in order to prevent data corruption.

You could have a Mnemosyne sync server running on a different computer, but that is currently single user only.

I'm afraid the USB key is still the most valid option...

Peter

On 11/21/2012 03:51 PM, Mark wrote:


On the classroom computers at my school, we have Deep Freeze running --
which resets the hard drive back to "safe" state at each reboot.

Unfortunately, this means the Mnemosyne usage history data is being lost
too at the end of each day when the computers are turned off.
So all cards, on the next day, look like it's the first time they have
ever been accessed.

It is basically impossible to get the computer setups changed....
certainly not in the middle of the term.

So, my question is.... maybe I could have Mnemosyne keep its usage data
on a network drive...somewhere off the local hard drive which is under
Deep Freeze control.

Also, I cant keep it on a USB flash drive...because the students will
lose that as soon as I blink my eyes.

Thanks




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Sint-Pietersnieuwstraat 41, B-9000 Gent, Belgium
tel: +32 9 264 34 46, fax: +32 9 264 35 93
WWW: http://photonics.intec.UGent.be
email: Peter.B...@UGent.be

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Mark

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Nov 21, 2012, 10:10:06 AM11/21/12
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Peter,

The sync server might work for me... as each homeroom has one computer.... so each room would in effect be a single user...

Does that seem viable? 

I haven't seen much detail in the documentation on this sync server...if this is a good option, how do I do it?

Thanks

Mark
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Peter Bienstman

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Nov 21, 2012, 10:19:23 AM11/21/12
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In short, you activate the server in the configuration panel. On the
client, you just do 'file - sync' and it will download the server
database. After reviewing, sync the client again with the server.

Since it will need to do a full sync since you start from scratch each
time, it will be slower than regular sync, though.

Peter
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Mark

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Nov 21, 2012, 6:21:23 PM11/21/12
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I see the client side setup on the Mnemosyne software configuration panel... that seems somewhat straightforward.

But I am unclear exactly what is running/setup on the server side?   What is listening for these client connections and/or what is processing the request once an incoming client connection is received?
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Peter Bienstman

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Nov 22, 2012, 5:33:05 AM11/22/12
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Just keep Mnemosyne running on the server.

Peter

Mark

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Nov 22, 2012, 11:02:14 AM11/22/12
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Ok, I will try this next week when I have some free time.

Thanks.

Mark
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