Tuesday, June 10, 2014

Sametime, WAS and insufficient resources on linux

When you are working on Sametime 9 on Linux server there are some parameter to set inside /etc/security/limits.conf file.

Usually i was setting something like this

wasuser  soft    nofile          65535
wasuser  hard    nofile          65535

where wasuser is the service WAS user (non root) and 65535 is the number of open file written in ST wiki for single server on single VM.

In last of my Sametime 9 test environment , with several servers on same VM , i was getting some insufficent resource starting more than 2 server at same time.

Inside this IBM technote i've found other setting required on Linux forA WAS server from 6.1 to 8.5.5  so i've added inside   /etc/security/limits.conf  the following setting

wasuser        soft     nproc           131072
wasuser        hard    nproc           131072

and after that all service was able to start using wasuser

The nproc setting could be useful also for IBM Connections or Websphere Portal (in case you have  OutOfMemory issue) because this setting is also for WAS 8.0

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