data add error

[Rui Li]

hi, 

I am trying to add dbpedia data to a stardog db. However, I got the following error:

There was a fatal failure during preparation of e8c674ef-0112-474a-b34a-6dc68c7f3eb9 org.openrdf.rio.RDFParseException: Unable to allocate 4.2K bytes, direct memory exhausted

It looks like some memory issue. But I am trying to add one file at a time already. So how should I solve this?

Thanks! 

Rui

[Evren Sirin]

The memory used by a transaction does not only depend on how many
triples you are adding but also on how many triples already exist in
the database. If the existing database already has a large number of
triples you'd need to increase the memory available to Stardog.

Best,
evren

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[Rui Li]

Evren:

Thanks for the quick response! 

The DB itself only contains 160Million triples. I'v had bigger DBs before, so I don't think this is the issue. But this stardog instance already has some other DBs. Could that the reason?

BTW, how to increase the memory for stardog?

Thanks. 

Rui

[Zachary Whitley]

You can increase the memory for Stardog by setting the STARDOG_JAVA_ARGS environment variable with -Xmx2g -Xms2g ...can't remember the exact arg for setting off heap memory. It should be in the docs somewhere. 

Then restart Stardog to pick up the new settings. 

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[Rui Li]

I found the settings. Thanks!