We use DB2 8.2.6 on Windows 2000.
We got following intermittent error in our production database.
2009-04-29-18.104.22.168000+600 E1032965H590 LEVEL: Severe (OS)
PID : 3228 TID : 6420 PROC : db2syscs.exe
INSTANCE: AXISPROD NODE : 000 DB : AXISRTDL
APPHDL : 0-744 APPID: G15DC749.N50C.023D49023714
FUNCTION: DB2 UDB, oper system services, getPrivateChunksFromOs, probe:100
CALLED : OS, -, VirtualAlloc
OSERR : 8 "Not enough storage is available to process this command."
MESSAGE : Private memory and/or virtual address space exhausted
DATA #1 : Requested size, PD_TYPE_MEM_REQUESTED_SIZE, 4 bytes
These errors happened during one of our extreme peak load period. We also notice at that time the memeory usage as shown by Windows Task manager was around 1 GB . These errors disappered affter an hour or so. After this we have not got this error so far. We think users did not have visible impact because of this error - because no one came around our desk to annoy us!!.
We do notice the error comes when db memeory utilisation (as shown by Windows Task manager) comes new 1 GB. Our server has 4GB RAM and 4GB Virtual memeory. Also there are is plenty of free memory in the server.
In our instance the private memory settings are:
MIN_PROV_MEM 32 * 4KB pages
PRIV_MEM_THRESH 1296 * 4KB pages
Any idea why we get these errors?