we are using postgresql 7.3 and jboss 3.2.3 to deploy ejbs(bmp)
while running some(big) queries connection is lost with the following error message on the jboss server:
LOG: database system was shut down at 2004-07-0
2 18:10:42 IST
LOG: checkpoint record is at 0/CD924D0
LOG: redo record is at 0/CD924D0; undo record is at 0/0; shutdown TRUE
LOG: next transaction id: 115962; next oid: 223462
LOG: database system is ready
FATAL: unsupported frontend protocol
LOG: server process (pid 1720) was terminated by signal 11
LOG: terminating any other active server processes
LOG: all server processes terminated; reinitializing shared memory and semaphores
IpcMemoryCreate: shmget(key=5432001, size=1007616, 03600) failed: Not enough core
This error usually means that PostgreSQL's request for a shared
memory segment exceeded available memory or swap space.
To reduce the request size (currently 1007616 bytes), reduce
PostgreSQL's shared_buffers parameter (currently 64) and/or
its max_connections parameter (currently 5).
The PostgreSQL Administrator's Guide contains more information about
shared memory configuration.
tried changing max connections and buffers parameter, no use. what to do