Hi, I'm having problems handling "big" graphs (50M to 100M triples at current stage) in my fuseki servers using sparql. The 2 actions I need todo are "DROP GRAPH <...>" and "MOVE <...> TO <...>". Doing these action with these graphs I get OutOfMemory errors. Some investigation pionted me to http://markmail.org/message/hjisrglx4eicrxyt and http://mail-archives.apache.org/mod_mbox/jena-users/201504.mbox/%3ccaj+mtwad1vfcnjaro37xkiwgyj7mrnillzvmsx1_nrj+rrf...@mail.gmail.com%3E
Using this config: <#yourdatasetname> rdf:type tdb:DatasetTDB ; ja:context [ ja:cxtName "tdb:transactionJournalWriteBlockMode" ; ja:cxtValue "mapped" ] ; ja:context [ ja:cxtName "arq:spillToDiskThreshold" ; ja:cxtValue 10000 . ] . Solves my problem but brings up another problem. My temp folder gets filled up with JenaTempByteBuffer-...UUID...tmp files until my disk is full. These files remain locked so I cannot delete them. The files seem to be created by org.apache.jena.tdb.base.file.BufferAllocatorMapped but are for some reason not released. Is there any way to work around this issue? I'm using -fuseki 2.3.1 -jvm 1.8.0_25 64bit -windows 10 Dominique Vandensteen Head of development + 32 474 870856 [email protected] skype: domi.vds
