公开(公告)号：CA2383825A1

公开(公告)日：2003-10-24

申请号：CA2383825

申请日：2002-04-24

Applicant: IBM CANADA

Inventor： NG JACK HON WAI ,  TRUUVERT KAAREL ,  GOSS JEFFREY J ,  XUE XUN ,  PEREYRA HEBERT W

IPC: G06F9/50 ,  G06F17/30

Abstract: A database management system in which a plurality of nodes form a database instance, each node including a communication manager for dynamically configuring inter-nod al communication resources. The communicaton manager receives communication resource allocati on requests from clients or a self-tuning algorithm. A resource self-tuning mechanism allocat es or de-allocates memory blocks used for communication resource elements dynamically in real time without cycling the instance. Memory blocks are de-allocated asynchronously by placing associated communication resource elements in quarantine until all communication resource elements associated with the memory block are quarantined.