Error in forking cpimport.bin (errno-12); Cannot allocate memory

Bulk load using the LOAD DATA command starts to fail after a week of starting the server with the following error.

Error in forking cpimport.bin (errno-12); Cannot allocate memory; nested exception is java.sql.SQLException: Internal error: : Error in forking cpimport.bin (errno-12); Cannot allocate memory

Already applied the jemalloc fix mentioned here - https://mariadb.com/kb/en/library/system-troubleshooting-mariadb-columnstore/#mariadb-columnstore-process-restarting-due-to-allocating-to-much-memory

Also confirmed that innodb_buffer_pool_size in my.cnf is set to much less (128MB) than 25% of the total memory (7GB).
https://mariadb.com/kb/en/library/system-troubleshooting-mariadb-columnstore/#error-in-forking-cpimportbin-errno-12-cannot-allocate-memory