Hi, 

I created a dbfarm (/tmp/exm ), then created database (EXM), load data, do queries, etc, everything works fine for a week. Then I found mclient stopped working (can’t connect to monetdb). The log file shows ‘too many files opened’ issue. I guess it might be some connection leak issue. I tried ‘monetdbd stop /tmp/exm’, but it’s not responding. It looks I can’t stop the dbfarm now. I then reboot the system and after reboot tried ‘monetdbd start /tmp/exm’ but I got an error saying ‘ cannot find file in /tmp/exm’. I verified the /tmp/exm folder did exist and there’re still sub folder ( ./EXM) and log file still under /tmp/exm. 

The only option left seems to be creating a new dbfarm and recreating the whole database again. We’re moving to use MonetDB in production and if this is a real bug then it would be too risky for production. 

The question is, is this a real issue? Or it’s just some user error that I made? How do I make sure we won’t run into this situation again in production mode. 

Many thanks,

HQ