On 03/12/13 18:20, DAVID PATTERSON wrote:
Thanks for the info. I'll look at putting my pages in the /pages
directory. Is it possible to have any other services? I need an images
server to fetch photos and display them.
What I was trying to ask (and did not succeed in expressing myself) with
the second question is "What is the safest way to shut down Fuseki and
the web service so I can backup the data that was put into my TDB
dataset by Fuseki.
Just kill the Fuseki process. Control-C, kill -KILL, whatever. As it
has to be safe against accidental failures of all kinds, there isn't
much point of having graceful shutdown. Just two codepaths to maintain.
The distribution has a Linux start/stop service script. "fuseki stop"
just finds the PID and kills the process.
You can back it up live by:
0/ Create directory "backups" in the servers working directory.
1/ Starting with --mgtPort=3131
2/ Poke /mgt?cmd=backup&dataset=/...' where ... is the dataset name.
The server will write a compresses n-quads file as backup.
e.g.
curl -X POST 'http://localhost:3131/mgt?cmd=backup&dataset=/DATASET'
This happens live - the server continues to service requests inc
updates. The backup is a read transaction so sees a consistent state of
the database. TDB only does isolation level serializable, anything less
seems to lead to trouble eventually - TDB uses write-ahead-logging, not
2 phase locking, of transactions.
This is a trial server, for now in my basement with only one user.
Dave P
Andy
On Dec 02, 2013, at 04:29 PM, Andy Seaborne <[email protected]> wrote:
On 02/12/13 17:24, DAVID PATTERSON wrote:
I am using Fuseki to return content in support of a desired RESTful
server design.
1) Can I use the imbedded server to also serve up "my" pages, or do I
need to have a second server with Tomcat or something running in it?
Put them in the pages/ directory.
2) If I make changes to a TDB dataset behind Fuseki, do I have to close
the server gracefully in order for the data to be saved?
Don't do that!
Don't even modify the TDB dataset when Fuseki is running. Do not
assume that a graceful restart will help - it won't.
You will corrupt the database.
Either
modify via Fuseki
or
stop the server then modify the dataset
Andy
Thanks.
Dave P
