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Memory/Resources Errors On System That Has Abundent Resources Running Oracle Linux 6 (Doc ID 1578925.1)

Last updated on OCTOBER 03, 2019

Applies to:

Oracle Applications DBA - Version 12.1.3 to 12.1.3 [Release 12.1]
Linux x86-64


Adpatch recommends the use of a high number of workers, ie 128. The machine is a blade server running 4 processors each with 8 cores and 2 threads per core. The machine has 128 Gb of RAM.

Now trying to apply a patch and when running XDOLoader.class the system is erroring out indicating that it does not have enough resources.

Reducing the number of workers to 8 fixed the issue, but clearly something is wrong since the machine should run 128 workers without problems

Checking a pid error log file from an adworker.log ie /oraapp/r12/oadev1/apps/apps_st/appl/admin/OADEV1/out/hs_err_pid14786.log shows the following

rlimit: STACK 8192k, CORE 0k, NPROC 1024, NOFILE 65535, AS infinity

But the limit.conf contains the values specified by the Installation note Oracle E-Business Suite Installation and Upgrade Notes Release 12 (12.1.1) for Linux x86-64 (Doc ID 761566.1)

 * hard nofile 65535
 * soft nofile 4096
 * hard nproc 16384
 * soft nproc 2047


Migration to RHEL6/OEL6


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