babeldoc-devel

[Babeldoc-devel] [babeldoc - Help] multiple Babeldoc processes

[SourceForge.net <no...@so...>]

Read and respond to this message at: 
https://sourceforge.net/forum/message.php?msg_id=2201154
By: dchocky

Hi!



I'm using Babeldoc (and Xindice XML server) to construct a simple Document Workflow
System (or at least that's what we call it), as a part of my college theses.
I've built a custom (RMI)feeder-wrapper for Babeldoc.

The application could work ok with this feeder, but I'd like to provide
an alternative way of feeding documents into the pipeline.
Here's the question:

Is it possible to start in one process my (or any other) feeder for Babeldoc,
and in another process to start a scanner (a mailbox scanner) and should I expect
any problems or do these processes work independently (concurrent access to
journal?,velocity log...)?
Does it become a problem if both processes are operating on the same pipeline?
...on different pipelines?
I've tried this and it seems to work fine, but...



Davor Cokrlic



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Re: [Babeldoc-devel] [babeldoc - Help] multiple Babeldoc processes

[David G. <dg...@co...>]

Hi Davor,

If you are executing multiple invocations of Babeldoc from the command line, 
each invocation is running is a separate JVM and therefore you shouldn't have 
any problems executing the same pipeline simultaneously (with the possible 
exception of the Journal update... Bruce, how is contention handled in the 
case of multiple JVM copies of Babeldoc trying to simultaneously update the 
Journal?).

If you are executing multiple invocations in the same JVM, I believe that this 
situation is handled via the multi-threading model Babeldoc supports.  The 
section on Multithreaded Operation in the Users Guide is an excellent source 
of info for this situation.


Hope this helps,

David


On Saturday 20 September 2003 1:57 am, SourceForge.net wrote:
> Read and respond to this message at:
> https://sourceforge.net/forum/message.php?msg_id=2201154
> By: dchocky
>
> Hi!
>
>
>
> I'm using Babeldoc (and Xindice XML server) to construct a simple Document
> Workflow System (or at least that's what we call it), as a part of my
> college theses. I've built a custom (RMI)feeder-wrapper for Babeldoc.
>
> The application could work ok with this feeder, but I'd like to provide
> an alternative way of feeding documents into the pipeline.
> Here's the question:
>
> Is it possible to start in one process my (or any other) feeder for
> Babeldoc, and in another process to start a scanner (a mailbox scanner) and
> should I expect any problems or do these processes work independently
> (concurrent access to journal?,velocity log...)?
> Does it become a problem if both processes are operating on the same
> pipeline? ...on different pipelines?
> I've tried this and it seems to work fine, but...
>
>
>
> Davor Cokrlic
>
>
>
> ______________________________________________________________________
> You are receiving this email because you elected to monitor this forum.
> To stop monitoring this forum, login to SourceForge.net and visit:
> https://sourceforge.net/forum/unmonitor.php?forum_id=190909
>
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Babeldoc-devel mailing list
> Bab...@li...
> https://lists.sourceforge.net/lists/listinfo/babeldoc-devel

-- 
David Glick
Transmit Consulting, Inc
619-475-4052
dg...@tr...

Re: [Babeldoc-devel] [babeldoc - Help] multiple Babeldoc processes

[Bruce M. <br...@mc...>]

David / Davor:

If your are running two instances of babeldoc (two jvms) then all is good - 
the simple journals steps do not get mixed up.  The problem arises when you 
are threading, in the same pipeline for the same journal ticket, then the 
ticket steps get mixed.  

The issue is that the simple journal uses the strict consecutive provision of 
ticket steps to know about ordering, etc.  This is a problem if you have 
multiple threads - everything is out of order...

regards,
Bruce.

On Sunday 21 September 2003 12:40 am, David Glick wrote:
> Hi Davor,
>
> If you are executing multiple invocations of Babeldoc from the command
> line, each invocation is running is a separate JVM and therefore you
> shouldn't have any problems executing the same pipeline simultaneously
> (with the possible exception of the Journal update... Bruce, how is
> contention handled in the case of multiple JVM copies of Babeldoc trying to
> simultaneously update the Journal?).
>
> If you are executing multiple invocations in the same JVM, I believe that
> this situation is handled via the multi-threading model Babeldoc supports. 
> The section on Multithreaded Operation in the Users Guide is an excellent
> source of info for this situation.
>
>
> Hope this helps,
>
> David
>
> On Saturday 20 September 2003 1:57 am, SourceForge.net wrote:
> > Read and respond to this message at:
> > https://sourceforge.net/forum/message.php?msg_id=2201154
> > By: dchocky
> >
> > Hi!
> >
> >
> >
> > I'm using Babeldoc (and Xindice XML server) to construct a simple
> > Document Workflow System (or at least that's what we call it), as a part
> > of my college theses. I've built a custom (RMI)feeder-wrapper for
> > Babeldoc.
> >
> > The application could work ok with this feeder, but I'd like to provide
> > an alternative way of feeding documents into the pipeline.
> > Here's the question:
> >
> > Is it possible to start in one process my (or any other) feeder for
> > Babeldoc, and in another process to start a scanner (a mailbox scanner)
> > and should I expect any problems or do these processes work independently
> > (concurrent access to journal?,velocity log...)?
> > Does it become a problem if both processes are operating on the same
> > pipeline? ...on different pipelines?
> > I've tried this and it seems to work fine, but...
> >
> >
> >
> > Davor Cokrlic
> >
> >
> >
> > ______________________________________________________________________
> > You are receiving this email because you elected to monitor this forum.
> > To stop monitoring this forum, login to SourceForge.net and visit:
> > https://sourceforge.net/forum/unmonitor.php?forum_id=190909
> >
> >
> > -------------------------------------------------------
> > This sf.net email is sponsored by:ThinkGeek
> > Welcome to geek heaven.
> > http://thinkgeek.com/sf
> > _______________________________________________
> > Babeldoc-devel mailing list
> > Bab...@li...
> > https://lists.sourceforge.net/lists/listinfo/babeldoc-devel

Re: [Babeldoc-devel] [babeldoc - Help] multiple Babeldoc processes

[David G. <dg...@co...>]

Hi Bruce,

Does the SQL journal solve this problem?

David


On Sunday 21 September 2003 5:43 am, Bruce McDonald wrote:
> David / Davor:
>
> If your are running two instances of babeldoc (two jvms) then all is good -
> the simple journals steps do not get mixed up.  The problem arises when you
> are threading, in the same pipeline for the same journal ticket, then the
> ticket steps get mixed.
>
> The issue is that the simple journal uses the strict consecutive provision
> of ticket steps to know about ordering, etc.  This is a problem if you have
> multiple threads - everything is out of order...
>
> regards,
> Bruce.
>
> On Sunday 21 September 2003 12:40 am, David Glick wrote:
> > Hi Davor,
> >
> > If you are executing multiple invocations of Babeldoc from the command
> > line, each invocation is running is a separate JVM and therefore you
> > shouldn't have any problems executing the same pipeline simultaneously
> > (with the possible exception of the Journal update... Bruce, how is
> > contention handled in the case of multiple JVM copies of Babeldoc trying
> > to simultaneously update the Journal?).
> >
> > If you are executing multiple invocations in the same JVM, I believe that
> > this situation is handled via the multi-threading model Babeldoc
> > supports. The section on Multithreaded Operation in the Users Guide is an
> > excellent source of info for this situation.
> >
> >
> > Hope this helps,
> >
> > David
> >
> > On Saturday 20 September 2003 1:57 am, SourceForge.net wrote:
> > > Read and respond to this message at:
> > > https://sourceforge.net/forum/message.php?msg_id=2201154
> > > By: dchocky
> > >
> > > Hi!
> > >
> > >
> > >
> > > I'm using Babeldoc (and Xindice XML server) to construct a simple
> > > Document Workflow System (or at least that's what we call it), as a
> > > part of my college theses. I've built a custom (RMI)feeder-wrapper for
> > > Babeldoc.
> > >
> > > The application could work ok with this feeder, but I'd like to provide
> > > an alternative way of feeding documents into the pipeline.
> > > Here's the question:
> > >
> > > Is it possible to start in one process my (or any other) feeder for
> > > Babeldoc, and in another process to start a scanner (a mailbox scanner)
> > > and should I expect any problems or do these processes work
> > > independently (concurrent access to journal?,velocity log...)?
> > > Does it become a problem if both processes are operating on the same
> > > pipeline? ...on different pipelines?
> > > I've tried this and it seems to work fine, but...
> > >
> > >
> > >
> > > Davor Cokrlic
> > >
> > >
> > >
> > > ______________________________________________________________________
> > > You are receiving this email because you elected to monitor this forum.
> > > To stop monitoring this forum, login to SourceForge.net and visit:
> > > https://sourceforge.net/forum/unmonitor.php?forum_id=190909
> > >
> > >
> > > -------------------------------------------------------
> > > This sf.net email is sponsored by:ThinkGeek
> > > Welcome to geek heaven.
> > > http://thinkgeek.com/sf
> > > _______________________________________________
> > > Babeldoc-devel mailing list
> > > Bab...@li...
> > > https://lists.sourceforge.net/lists/listinfo/babeldoc-devel
>
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Babeldoc-devel mailing list
> Bab...@li...
> https://lists.sourceforge.net/lists/listinfo/babeldoc-devel

-- 
David Glick
Transmit Consulting, Inc
619-475-4052
dg...@tr...

Re: [Babeldoc-devel] [babeldoc - Help] multiple Babeldoc processes

[Bruce M. <br...@mc...>]

I dont know.

On Sunday 21 September 2003 09:19 am, David Glick wrote:
> Hi Bruce,
>
> Does the SQL journal solve this problem?
>
> David
>
> On Sunday 21 September 2003 5:43 am, Bruce McDonald wrote:
> > David / Davor:
> >
> > If your are running two instances of babeldoc (two jvms) then all is good
> > - the simple journals steps do not get mixed up.  The problem arises when
> > you are threading, in the same pipeline for the same journal ticket, then
> > the ticket steps get mixed.
> >
> > The issue is that the simple journal uses the strict consecutive
> > provision of ticket steps to know about ordering, etc.  This is a problem
> > if you have multiple threads - everything is out of order...
> >
> > regards,
> > Bruce.
> >
> > On Sunday 21 September 2003 12:40 am, David Glick wrote:
> > > Hi Davor,
> > >
> > > If you are executing multiple invocations of Babeldoc from the command
> > > line, each invocation is running is a separate JVM and therefore you
> > > shouldn't have any problems executing the same pipeline simultaneously
> > > (with the possible exception of the Journal update... Bruce, how is
> > > contention handled in the case of multiple JVM copies of Babeldoc
> > > trying to simultaneously update the Journal?).
> > >
> > > If you are executing multiple invocations in the same JVM, I believe
> > > that this situation is handled via the multi-threading model Babeldoc
> > > supports. The section on Multithreaded Operation in the Users Guide is
> > > an excellent source of info for this situation.
> > >
> > >
> > > Hope this helps,
> > >
> > > David
> > >
> > > On Saturday 20 September 2003 1:57 am, SourceForge.net wrote:
> > > > Read and respond to this message at:
> > > > https://sourceforge.net/forum/message.php?msg_id=2201154
> > > > By: dchocky
> > > >
> > > > Hi!
> > > >
> > > >
> > > >
> > > > I'm using Babeldoc (and Xindice XML server) to construct a simple
> > > > Document Workflow System (or at least that's what we call it), as a
> > > > part of my college theses. I've built a custom (RMI)feeder-wrapper
> > > > for Babeldoc.
> > > >
> > > > The application could work ok with this feeder, but I'd like to
> > > > provide an alternative way of feeding documents into the pipeline.
> > > > Here's the question:
> > > >
> > > > Is it possible to start in one process my (or any other) feeder for
> > > > Babeldoc, and in another process to start a scanner (a mailbox
> > > > scanner) and should I expect any problems or do these processes work
> > > > independently (concurrent access to journal?,velocity log...)?
> > > > Does it become a problem if both processes are operating on the same
> > > > pipeline? ...on different pipelines?
> > > > I've tried this and it seems to work fine, but...
> > > >
> > > >
> > > >
> > > > Davor Cokrlic
> > > >
> > > >
> > > >
> > > > _____________________________________________________________________
> > > >_ You are receiving this email because you elected to monitor this
> > > > forum. To stop monitoring this forum, login to SourceForge.net and
> > > > visit: https://sourceforge.net/forum/unmonitor.php?forum_id=190909
> > > >
> > > >
> > > > -------------------------------------------------------
> > > > This sf.net email is sponsored by:ThinkGeek
> > > > Welcome to geek heaven.
> > > > http://thinkgeek.com/sf
> > > > _______________________________________________
> > > > Babeldoc-devel mailing list
> > > > Bab...@li...
> > > > https://lists.sourceforge.net/lists/listinfo/babeldoc-devel
> >
> > -------------------------------------------------------
> > This sf.net email is sponsored by:ThinkGeek
> > Welcome to geek heaven.
> > http://thinkgeek.com/sf
> > _______________________________________________
> > Babeldoc-devel mailing list
> > Bab...@li...
> > https://lists.sourceforge.net/lists/listinfo/babeldoc-devel