How to restore Slide resources ?

Hi!

I'm not sure I understand what you mean.. What do you mean
by resources? Can you explain a bit more?

Bye!
max

> -----Original Message-----
> From: Thomas Bellembois [mailto:thomas.bellemboisuniv-rennes1.fr]
> Sent: Wednesday, March 29, 2006 11:11
> To: Slide Users Mailing List
> Subject: How to restore Slide resources ?
> 
> 
> Hello,
> 
> I wonder how we can restore resources on Slide - not
the 
> entire backend, 
> but just some resources ?
> We could propably do that restoring content and
handling 
> metadata, but 
> this is not an easy task...
> Some people are frightened of using Slide in a
production environment 
> because of that.
> 
> Regards,
> 
> Thomas
> 
> -- 
> ......-=( Thomas Bellembois )=-......
> CRI - University of Rennes 1 (France)
> ..................................... 
> 
> 
>
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> 

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Hello !

Sorry, I have just noticed that my explanations are not very
clear...
I will try to re-explain 
What I wanted to say is that I think that we could save and
restore the 
ENTIRE Slide content and metadata just by saving the content
and 
metadata root path. Usefull if the Slide backend crashes...
At the University of Rennes 1 we intend to use a SAN(NAS)
for the Slide 
backend. This SAN makes snapshots everyday of each
file/directory so 
that a user can restore its documents up to 1 week ago.
But with Slide, to restore just one part of the tree (for
example a user 
homedir), I am not sure that we could just restore one
directory (and 
attached metadata) and restart the server.
Some French universities are waiting for this kind of
functionnalities 
to use Slide in a production use.
Hope it is more clear.

Thanks for your help,

Regards,

Thomas


Max Pfingsthorn a écrit :

>Hi!
>
>I'm not sure I understand what you mean.. What do you
mean by resources? Can you explain a bit more?
>
>Bye!
>max
>
>  
>
>>-----Original Message-----
>>From: Thomas Bellembois
[mailto:thomas.bellemboisuniv-rennes1.fr]
>>Sent: Wednesday, March 29, 2006 11:11
>>To: Slide Users Mailing List
>>Subject: How to restore Slide resources ?
>>
>>
>>Hello,
>>
>>I wonder how we can restore resources on Slide - not
the 
>>entire backend, 
>>but just some resources ?
>>We could propably do that restoring content and
handling 
>>metadata, but 
>>this is not an easy task...
>>Some people are frightened of using Slide in a
production environment 
>>because of that.
>>
>>Regards,
>>
>>Thomas
>>
>>-- 
>>......-=( Thomas Bellembois )=-......
>>CRI - University of Rennes 1 (France)
>>..................................... 
>>
>>
>>----------------------------------------------------
-----------------
>>To unsubscribe, e-mail: slide-user-unsubscribejakarta.apache.org
>>For additional commands, e-mail: slide-user-helpjakarta.apache.org
>>
>>
>>    
>>
>
>--------------------------------------------------------
-------------
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>
>  
>


-- 
......-=( Thomas Bellembois )=-......
CRI - University of Rennes 1 (France)
..................................... 


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Hello Thomas,

 I'm not answering your question, but a while back I though
at the same
problem: how to backup and restore slide's content.
 Before I discover that it's enough to backup the txtStore
content, I though
that I would need to create a tool that would download all
content and
metainfo in the configured stores, and create a
'proprietary' backup file
with that content. I mean proprietary because, there isn't
such thing as
slide's backup file, or a tool to backup/restore slide's
content at runtime
(maybe I'm wrong here... I do recall someone talk about
this at late 2004).

 If you specify and implement this tool, and the file's
content, you could
include the backup/restore of a single collection as well.
 Problem with this approach: it must download the content
witch can be a
problem if it's done at a wrong schedule, that is, it's
not very scalable.

Hope this helps,
Miguel Figueiredo

-----Original Message-----
From: Thomas Bellembois [mailto:thomas.bellemboisuniv-rennes1.fr] 
Sent: quarta-feira, 29 de Março de 2006 13:16
To: Slide Users Mailing List
Subject: Re: How to restore Slide resources ?

Hello !

Sorry, I have just noticed that my explanations are not very
clear...
I will try to re-explain 
What I wanted to say is that I think that we could save and
restore the 
ENTIRE Slide content and metadata just by saving the content
and 
metadata root path. Usefull if the Slide backend crashes...
At the University of Rennes 1 we intend to use a SAN(NAS)
for the Slide 
backend. This SAN makes snapshots everyday of each
file/directory so 
that a user can restore its documents up to 1 week ago.
But with Slide, to restore just one part of the tree (for
example a user 
homedir), I am not sure that we could just restore one
directory (and 
attached metadata) and restart the server.
Some French universities are waiting for this kind of
functionnalities 
to use Slide in a production use.
Hope it is more clear.

Thanks for your help,

Regards,

Thomas


Max Pfingsthorn a écrit :

>Hi!
>
>I'm not sure I understand what you mean.. What do you
mean by resources?
Can you explain a bit more?
>
>Bye!
>max
>
>  
>
>>-----Original Message-----
>>From: Thomas Bellembois
[mailto:thomas.bellemboisuniv-rennes1.fr]
>>Sent: Wednesday, March 29, 2006 11:11
>>To: Slide Users Mailing List
>>Subject: How to restore Slide resources ?
>>
>>
>>Hello,
>>
>>I wonder how we can restore resources on Slide - not
the 
>>entire backend, 
>>but just some resources ?
>>We could propably do that restoring content and
handling 
>>metadata, but 
>>this is not an easy task...
>>Some people are frightened of using Slide in a
production environment 
>>because of that.
>>
>>Regards,
>>
>>Thomas
>>
>>-- 
>>......-=( Thomas Bellembois )=-......
>>CRI - University of Rennes 1 (France)
>>..................................... 
>>
>>
>>----------------------------------------------------
-----------------
>>To unsubscribe, e-mail: slide-user-unsubscribejakarta.apache.org
>>For additional commands, e-mail: slide-user-helpjakarta.apache.org
>>
>>
>>    
>>
>
>--------------------------------------------------------
-------------
>To unsubscribe, e-mail: slide-user-unsubscribejakarta.apache.org
>For additional commands, e-mail: slide-user-helpjakarta.apache.org
>
>  
>


-- 
......-=( Thomas Bellembois )=-......
CRI - University of Rennes 1 (France)
..................................... 


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Here is how we do redundant storage.

We extended the Tx* stores with a "Store
Manager" that implements all the
methods and uses the original Tx* filesystem xml code.  But
our Store
Manager looks in a registry and also calls a secondary store
based on the
path and event being processed.  This secondary store then
has full access
to the updates of both descriptors (metadata) and content.

We use the secondary stores for integration with external
systems by writing
an adaptor between the slide store interfaces and the
external system's
interfaces. For redundant storage we have a JXTA Secondary
store that raises
an advertisement of a change to either metadata or content,
and that
advertisement is picked up by other slide repositories that
are registered
and participants in the JXTA P2P cloud and then they
asynchronously either
apply the change directly from data in the advertisement or
connect back to
the changed repository to pick up the change.

Because the secondary stores are mapped we can have some
content
synchronized in this way while other content is not.

Michael Oliver
CTO
Alarius Systems LLC
6800 E. Lake Mead Blvd, #1096
Las Vegas, NV 89156
Phone:(702)866-9034
Cell:(518)378-6154
Fax:(702)974-0341
 

-----Original Message-----
From: Thomas Bellembois [mailto:thomas.bellemboisuniv-rennes1.fr] 
Sent: Wednesday, March 29, 2006 4:16 AM
To: Slide Users Mailing List
Subject: Re: How to restore Slide resources ?

Hello !

Sorry, I have just noticed that my explanations are not very
clear...
I will try to re-explain 
What I wanted to say is that I think that we could save and
restore the 
ENTIRE Slide content and metadata just by saving the content
and 
metadata root path. Usefull if the Slide backend crashes...
At the University of Rennes 1 we intend to use a SAN(NAS)
for the Slide 
backend. This SAN makes snapshots everyday of each
file/directory so 
that a user can restore its documents up to 1 week ago.
But with Slide, to restore just one part of the tree (for
example a user 
homedir), I am not sure that we could just restore one
directory (and 
attached metadata) and restart the server.
Some French universities are waiting for this kind of
functionnalities 
to use Slide in a production use.
Hope it is more clear.

Thanks for your help,

Regards,

Thomas


Max Pfingsthorn a écrit :

>Hi!
>
>I'm not sure I understand what you mean.. What do you
mean by resources?
Can you explain a bit more?
>
>Bye!
>max
>
>  
>
>>-----Original Message-----
>>From: Thomas Bellembois
[mailto:thomas.bellemboisuniv-rennes1.fr]
>>Sent: Wednesday, March 29, 2006 11:11
>>To: Slide Users Mailing List
>>Subject: How to restore Slide resources ?
>>
>>
>>Hello,
>>
>>I wonder how we can restore resources on Slide - not
the 
>>entire backend, 
>>but just some resources ?
>>We could propably do that restoring content and
handling 
>>metadata, but 
>>this is not an easy task...
>>Some people are frightened of using Slide in a
production environment 
>>because of that.
>>
>>Regards,
>>
>>Thomas
>>
>>-- 
>>......-=( Thomas Bellembois )=-......
>>CRI - University of Rennes 1 (France)
>>..................................... 
>>
>>
>>----------------------------------------------------
-----------------
>>To unsubscribe, e-mail: slide-user-unsubscribejakarta.apache.org
>>For additional commands, e-mail: slide-user-helpjakarta.apache.org
>>
>>
>>    
>>
>
>--------------------------------------------------------
-------------
>To unsubscribe, e-mail: slide-user-unsubscribejakarta.apache.org
>For additional commands, e-mail: slide-user-helpjakarta.apache.org
>
>  
>


-- 
......-=( Thomas Bellembois )=-......
CRI - University of Rennes 1 (France)
..................................... 


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