Hi, I am running MonetDB v. 11.9.7. I have a large RDF dataset loaded in it (800+ million triples) as separate predicate tables for each unique predicate. I am running some simple one join SPAQRL queries ("?s :p1 ?o JOIN ?o :p2 ?x" kind) in bulk through a shell script (echo "<some query>" | mclient -drdf -lsql >> results). Sometime overnight when the queries were running, an error occurred in the database run, and it crashed by spitting out messages "monetdbd: an internal error has occurred, refer to the logs for details, please try again later" and "monetdbd: internal error while starting mserver, please refer to the logs" for the rest of the queries after some query caused this error. But when I tried to open "<Path To MonetDB installation>/var/log/monetdb/merovingian.log", it said "no such file or directory". I restarted the server and the particular database. It shows me its status as "health 97%" and "crash <crash date and time>". I tried to find the logfile again, but it's not there. I am wondering how I can know what the problem was. _______________________________________________ users-list mailing list users-list@monetdb.org http://mail.monetdb.org/mailman/listinfo/users-list