...@apache.org]
Sent: Monday, August 19, 2013 16:06
To: users@jena.apache.org
Subject: Re: Two tdb instances using same data files
On 19/08/13 13:21, Shapiro, Alexander wrote:
Hi,
A while ago I've asked a question about two tdb instances using same data
files (see below).
Now I'm using
(Location)
Andy
Thank you,
Alex
-Original Message-
From: Andy Seaborne [mailto:a...@apache.org]
Sent: Monday, August 19, 2013 16:06
To: users@jena.apache.org
Subject: Re: Two tdb instances using same data files
On 19/08/13 13:21, Shapiro, Alexander wrote:
Hi,
A while ago I've asked
]
Sent: Tuesday, August 20, 2013 15:26
To: users@jena.apache.org
Subject: Re: Two tdb instances using same data files
On 20/08/13 12:49, Shapiro, Alexander wrote:
Andy,
Thank you for your answer.
We have about 10,000,000 triples in the data files.
We will work on architecture changes.
Meanwhile
the model?
StoreConnection.release(Location)
Andy
Thank you,
Alex
-Original Message-
From: Andy Seaborne [mailto:a...@apache.org]
Sent: Monday, August 19, 2013 16:06
To: users@jena.apache.org
Subject: Re: Two tdb instances using same data files
On 19/08/13 13:21, Shapiro
: Sunday, March 10, 2013 20:15
To: users@jena.apache.org
Subject: Re: Two tdb instances using same data files
On 10/03/13 17:05, Marco Neumann wrote:
Ok yes so this is a very bad idea as mentioned earlier. I would
consider to replace the file access with an endpoint and execute
select and update via
On 11/03/13 11:29, Alex Shapiro wrote:
Thank you Marco and Andy! I perfectly understand that changes made in
one JVM will not update the model in second JVM and that this is in
general a bad idea :-). We are working on changing the architecture
of our application. Meanwhile, let's say I know
how do you access the tdb databases? in general it's a bad idea to
grant access to the files to more than one client.
On Sun, Mar 10, 2013 at 9:12 AM, Alex Shapiro alex.shap...@dbmotion.com wrote:
Hi,
We have 2 tdb instances (2 JVMs on separate machines) that access the same
data files on
-Original Message-
From: Marco Neumann [mailto:marco.neum...@gmail.com]
Sent: Sunday, March 10, 2013 15:20
To: users@jena.apache.org
Subject: Re: Two tdb instances using same data files
how do you access the tdb databases? in general it's a bad idea to grant access
to the files to more than one
@jena.apache.org
Subject: Re: Two tdb instances using same data files
how do you guarantee that there are no concurrent read/writes on the files in
the current setup?
On Sun, Mar 10, 2013 at 9:33 AM, Alex Shapiro alex.shap...@dbmotion.com wrote:
Generally there is a web services on each machine that passes
Message-
From: Marco Neumann [mailto:marco.neum...@gmail.com]
Sent: Sunday, March 10, 2013 16:01
To: users@jena.apache.org
Subject: Re: Two tdb instances using same data files
how do you guarantee that there are no concurrent read/writes on the files in
the current setup?
On Sun, Mar 10
Neumann [mailto:marco.neum...@gmail.com]
Sent: Sunday, March 10, 2013 17:42
To: users@jena.apache.org
Subject: Re: Two tdb instances using same data files
they are non static connections?
On Sun, Mar 10, 2013 at 11:40 AM, Alex Shapiro alex.shap...@dbmotion.com
wrote:
There is an external lock
It keeps the reference to model in memory.
Alex
-Original Message-
From: Marco Neumann [mailto:marco.neum...@gmail.com]
Sent: Sunday, March 10, 2013 18:25
To: users@jena.apache.org
Subject: Re: Two tdb instances using same data files
does the app terminate after each connection or do
-Original Message-
From: Marco Neumann [mailto:marco.neum...@gmail.com]
Sent: Sunday, March 10, 2013 18:25
To: users@jena.apache.org
Subject: Re: Two tdb instances using same data files
does the app terminate after each connection or do they constantly hold a
reference in memory
On 10/03/13 17:05, Marco Neumann wrote:
Ok yes so this is a very bad idea as mentioned earlier. I would
consider to replace the file access with an endpoint and execute
select and update via SPARQL.
Yes, use an endpoint - use Fuseki as a shared database server.
It will go wrong otherwise.
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