Hi all, I am using MonetDB v11.7.7 (Dec2011-SP1) in an application which constantly feeds data in tables (daily tables). The communication with the server is done through the mapi API. This is accomplished through the "COPY INTO" command. From time to time (every 1-2 days) I see errors in the application logs such as: exception at 00000000004C0109: Connect error (Error code -4): monetdbd: an internal error has occurred, refer to the logs for details, please try again later . exception at 00000000004C0109: Connect error (Error code -4): monetdbd: there are no available connections for 'mydatabase' . exception at 00000000004C0109: Connect error (Error code -4): monetdbd: there are no available connections for 'mydatabase' Then looking at dmesg log: [964932.242080] 251025 pages non-shared [964932.242083] Out of memory: kill process 11585 (monetdbd) score 787911 or a child [964932.302785] Killed process 11781 (mserver5) Sometimes, monetdb can recover from this error and then the loading continues normally, some others I have to manually restart monetdb. Is there anything I can do to troubleshoot this issue? Is there a possibility for me to fall back to an earlier version of MonetDB with potentially less features but more stability? Thanks for all the help, Stathis