Clustering and FileSystem question.

[Alexander Wallace <aw...@rwmotloc.com>]

Hi all!

In dealing with a cluster, it is clear to me that:

1 - the same journal config should be in each node.
2 - node ids should be different for each node
3 - same PM manager should be configured in each node.
4 - same DataStore config should be set in each node.

What It's not clear to me is if i can use the DBFileSystem instead of 
the default LocalFileSystem and if so, Does each node need a different 
config for the DbFileSystem or should they share it?

I want to keep everything in the DB, (except of course for the 
repository.xml that each node will have)...

Thanks in advance for your help!

Re: Clustering and FileSystem question.

[Alexander Wallace <aw...@rwmotloc.com>]

Got it, so if I want to use the DbFileSystem i should prefix it 
differently from others...

Is this a totally temporary FS? or it does indeed have data that needs 
to be persisted accross server restarts?  Is it something you normally 
need to backup?

Answers to these questions will help me determine if i really want to 
put it in the db or not...

Perhaps I could put a comment in the wiki about why this needs to be 
exclusive per node, once I understand it better.

Thanks a lot again!

Alexander Klimetschek wrote:
> Hi!
>
> On Thu, Dec 18, 2008 at 7:12 PM, Alexander Wallace <aw...@rwmotloc.com> wrote:
>   
>> What It's not clear to me is if i can use the DBFileSystem instead of the
>> default LocalFileSystem and if so, Does each node need a different config
>> for the DbFileSystem or should they share it?
>>     
>
> No, the filesystem is local only and must not be shared. This wiki
> page about clustering is actually "complete" ;-) :
> http://wiki.apache.org/jackrabbit/Clustering
>
> Regards,
> Alex
>
>   

Re: Clustering and FileSystem question.

[Alexander Wallace <aw...@rwmotloc.com>]

Please forgive for being redundant, but I want to make sure I fully 
understand this configuration.

In my config, I have a FileSystem definition for <Repository>, one for 
<Workspace> and one for <Revisioning>...

Should I understand that each of these, if put in the DB should NOT be 
shared? That's my current understanding and for that I decided to use 
the node ID as part of the prefix for each one...

Is this correct?

Also, is there a way to know the node_id via config, like 
${cluster.node.id} ?

Thanks again for your kind response!

Alexander Klimetschek wrote:
> Hi!
>
> On Thu, Dec 18, 2008 at 7:12 PM, Alexander Wallace <aw...@rwmotloc.com> wrote:
>   
>> What It's not clear to me is if i can use the DBFileSystem instead of the
>> default LocalFileSystem and if so, Does each node need a different config
>> for the DbFileSystem or should they share it?
>>     
>
> No, the filesystem is local only and must not be shared. This wiki
> page about clustering is actually "complete" ;-) :
> http://wiki.apache.org/jackrabbit/Clustering
>
> Regards,
> Alex
>
>   

Re: Clustering and FileSystem question.

[Alexander Klimetschek <ak...@day.com>]

Hi!

On Thu, Dec 18, 2008 at 7:12 PM, Alexander Wallace <aw...@rwmotloc.com> wrote:
> What It's not clear to me is if i can use the DBFileSystem instead of the
> default LocalFileSystem and if so, Does each node need a different config
> for the DbFileSystem or should they share it?

No, the filesystem is local only and must not be shared. This wiki
page about clustering is actually "complete" ;-) :
http://wiki.apache.org/jackrabbit/Clustering

Regards,
Alex

-- 
Alexander Klimetschek
alexander.klimetschek@day.com