On 13/12/17 07:04, Laura Morales wrote:
Personally I don't think that backing up large datasets via HTTP is a good idea... I
think you'd be better off downloading Jena and using one of the CLI tools such as
"tdbbackup".
It is not backed up over HTTP.
The backup is written locally by the server. It is invoked over HTTP.
A Fuseki backup is the same process as tdbbackup or tdbdump, its just
running in the background in the server.
Andy
Sent: Wednesday, December 13, 2017 at 2:43 AM
From: "Shengyu Li" <[email protected]>
To: [email protected]
Subject: Apache Jena Fuseki - Is there any other way to backup seperately when
my data is large?
Hi,
My question is about Apache Jena Fuseki.
Here is my situation.
I backed up about 50G (Fuseki\run\databases\MYDATANAME) data using the backup button, and I got the backup from 'Fuseki\run\backups', the file is MYDATANAME.nq.gz. It is about 2G.
When I was trying to upload the backup into a new server. Upload will be
interrupted and Fuseki stopped with the error 'java heap space'. So I enlarged
the space in file Fuseki\fuseki-server.bat. 50G failed with the same error. I
kept meeting 'java heap space' until I changed it into 60G (My RAM is 64G).
Then it uploaded successfully.
My database will keep on increasing. I was worried in the future when I backup
my data with larger size, I will be unable to upload them with the limited RAM.
When making the backup, is there any way to make the backup into several small
pieces, or anyway to backup with specific limitation (For example: The whole
data contains everyone's data int a country, the backup of everyone's data in
the country is very large and there may don't have enough RAM for it to upload.
So when making the backup, I can use some search sentences to restrict it into
one province's people data, after backup each province, I will got the whole
data of my old server.), or i can use command line to restrict my backup? I
didn't find information about it from the documentation of Fuseki.
Thank you very much!
Sincerely,
Sherry
