Nick,
No, we’re using the built-in triple store that comes with TBL. It’s
not relying on any other software package. We are accessing it via the endpoint
at :8080/tbl/tbl/sparql <http://epicdr.org:8080/tbl/tbl/sparql> . The odd
thing is that at least one of our SELECT queries worked fine, but others (doing
SELECTs or INSERTs) came back blank. Specifically, invoking the queries via a
web browser returned the headers of the SELECT, but no results. I didn’t
investigate more deeply because we wanted to get back to normal working mode,
which happened as soon as I hit the “Refresh Workspace” button on the console.
If it helps you to diagnose, the only thing I had done to cause
this was to create an Image of our AWS instance. I’m not sure exactly what
happens at the Amazon end, but it appears that doing that caused the instance
to reboot, because all our other processes also had to be restarted.
- Steve
Steven R. Ray, Ph.D.
Distinguished Research Fellow
Carnegie Mellon University
NASA Research Park
Building 23 (MS 23-11)
P.O. Box 1
Moffett Field, CA 94305-0001
Email: [email protected]
Phone: (650) 587-3780
Cell: (202) 316-6481
Skype: steverayconsulting
cid:[email protected]
From: [email protected] [mailto:[email protected]]
On Behalf Of Nick Abston
Sent: Thursday, December 14, 2017 8:00 AM
To: [email protected]
Subject: Re: [topbraid-users] Programmatically refreshing the TBL workspace
Hi Steve,
The 'refreshing' of the workspace is actually done on TopBraid startup. Was
there by any chance, a SDB database resource that was not available during this
time, that became available later (when you re-did the refresh manually)?
A programmatic way do refresh the workspace could be done. But if the server
is not right after a fresh startup, I would be more interested in what is
causing that, instead of triggering a refresh.
On Wed, Dec 13, 2017 at 8:21 PM, Steve Ray (CMU) <[email protected]> wrote:
Hi,
I recently was doing a routine image backup of our implementation
on AWS (which includes TBL). It seems that doing so caused the AWS instance to
reboot. Not a problem, I thought, because TBL started up again. However, it was
not behaving normally until I went to the TBL console and clicked “Refresh
Workspace”.
My question is, is there some way to programmatically refresh the workspace, so
that we can invoke that in a startup script?
- Steve
Steven R. Ray, Ph.D.
Distinguished Research Fellow
Carnegie Mellon University
NASA Research Park
Building 23 (MS 23-11)
P.O. Box 1
Moffett Field, CA 94305-0001
Email: [email protected]
Phone: (650) 587-3780 <tel:(650)%20587-3780>
Cell: (202) 316-6481 <tel:(202)%20316-6481>
Skype: steverayconsulting
cid:[email protected]
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