On 12/03/2020 11:26, Luí­s Moreira de Sousa wrote:
Dear all,

I loaded six RDF datasets to Fuseki with sizes comprised between 20 Kb and 20 
Mb. To host these six datasets (in persistent mode) Fuseki is using over 1 Gb 
of RAM and could soon get killed by the system (running on a container 
platform).

How much RAM are you giving Fuseki?
(Why "could soon get killed"?)


This demand on RAM for such small datasets appears excessive. What strategies 
are there to limit the RAM used by Fuseki?

The persistent store can be controlled with

https://jena.apache.org/documentation/tdb/store-parameters.html

Specifically:

tdb.node2nodeid_cache_size
tdb.nodeid2node_cache_size

file tdb.cfg in the

Do not change the database layout parameters after it is built!


Or put them all in one datasets as named graphs.
Or load them as plain files (if they are read-only)

    Andy


Thank you.

--
Luís

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