Dear All,

We are running performance testing for our application. When we run for 400 users, it failed in lot of use cases.

While i go through the log, informix is not allowing new connection.
Physical memory of the server is 20GB RAM.

Error in Log;

08:01:08 hpkaioaddseg: ASYNC_ADDSEG failed, errno = 11 Resource temporarily unavailable
08:01:08 create_tcb: cannot allocate memory

08:01:08 (2030) connection rejected - too many users, or invalid user name
08:01:08 listener-thread: err = -25571: oserr = 0: errstr = : Cannot create a user thread.


Configuration of nettype;

NETTYPE soctcp,8,300,NET
NETTYPE ipcshm,1,300,CPU

Segmant summary:

R :- 6329466880
V :- 6144000000
M :- 3248128
Total :- 12476715008


Please give me some idea to solve this issue. Is it because of configuration or web logic connection pool?

Thanks,
RV

Post onconfig and output onstat -g seg at the time of the problem.

# Shared Memory Parameters

LOCKS 6000000 # Maximum number of locks
NUMAIOVPS 2 # Number of IO vps
PHYSBUFF 512 # Physical log buffer size (Kbytes)
LOGBUFF 32 # Logical log buffer size (Kbytes)
CLEANERS 128 # Number of buffer cleaner processes
SHMBASE 0x0 # Shared memory base address
SHMVIRTSIZE 6000000 # initial virtual shared memory segment size
SHMADD 2000000 # Size of new shared memory segments (Kbytes)
SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited
CKPTINTVL 300 # Check point interval (in sec)
TXTIMEOUT 300 # Transaction timeout (in sec)
STACKSIZE 512 # Stack size (Kbytes)

BUFFERPOOL size=2K,buffers=2500000,lrus=512,lru_min_dirty=1.0 00000,lru_max_dirty=2.000000


onstat -g seg output:-

Segment Summary:
id key addr size ovhd class blkused blkfree
6717446 1382107137 c000000003eac000 6329466880 618304 R* 1545276 4
425991 1382107138 c00000017d2ec000 6144000000 188240 V 1483967 16033
360456 1382107139 c0000002eb64c000 3248128 848 M 792 1
Total: - - 12476715008 - - 3030035 16038

(* segment locked in memory)

Regards,
RV