Some of the sessions running on the production suddenly started terminating with the OS error message mentioned below.
Below is the error message written on to the sesslog :
node00_Informatica : *********** FATAL ERROR : Caught a fatal signal or exception.
node00_Informatica : *********** FATAL ERROR : Aborting the DTM process due to fatal signal
node00_Informatica : *********** FATAL ERROR : Signal Received: SIGSEGV (11)
Below is the Error message written on to the Integration Service log:
2015-02-20 12:11:22:ERROR:(30558|MANAGER):(IS|Integration_Service) : node00_Informatica
CEF_23005 : Failed to create thread due to operating system error [Resource temporarily unavailable]"
Solution : We set the following parameters to below mentioned respective values on the OS for the Informatica OS account.
open files (-n) 16384
max user processes (-u) 16320
You can use the command (ulimit -a) to verify the (open files & max user processes) on your OS server where the Informatica is installed.
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