Hi, While I was running a query today, I got this error today - *Allocation failedGDKmallocmax: failed for 18446744072964793488 bytes* I ignored it thinking it was some runtime error and repeatedly tried to run the same query 3 or 4 times. Finally, mclient got crashed. I tried to reconnect to mclient, but it was not successful. So I tried restarting the database, only to find that the database has already been shut down. When I tried starting the database, I am receiving this error - *starting database 'testDB'... FAILEDstart: starting 'testDB' failed: database 'testDB' appears to shut itself down after starting, check monetdbd's logfile for possible hints* I tried after restarting the demon multiple times, but no use. I checked merovingian.log file in the db farm folder, but it showed only this - *2015-02-04 05:59:50 ERR control[7829]: (local): failed to fork mserver: database 'testDB' appears to shut itself down after starting, check monetdbd's logfile for possible hints* I tried to check the monetdbd's log file, but I am unable to find the log folder in var. Has the database crashed irrecoverably? How to run MonetDB again with at least a new database?? Any help much appreciated. P.S.: I run MonetDB Oct2014-SP1 version in a CentOS machine with 128 GB RAM. Thanks & Regards, Vijay.