: Bash: ulimit: open files: cannot modify limit: The operation is not allowed.

 

[Root @ qs-xezf-db2 ~] # Su-Oracle

-Bash: ulimit: open files: cannot modify limit: The operation is not allowed.

[Oracle @ qs-xezf-db2 ~] $

 

Linux has default ulimit restrictions on users. The/etc/sysconfig/limits. conf file can be used to configure users' hard configurations and soft configurations. Hard configurations are limited. When the modification exceeds the upper limit, an error such as "operation not allowed" will occur.

 

This is the recommended value on the Oracle official website. It is set to the following value. It will be OK after login.

 

[Oracle @ qs-xezf-db2 ~] $ CAT/etc/sysconfig/limits. conf

Oracle soft nproc 2047

Hard nproc 16384

Oracle soft nofile 1024

Oracle hard nofile 65536

 

[Root @ qs-xezf-db1 ~] # Su-Oracle

[Oracle @ qs-xezf-db1 ~] $

 

 

Oracle official website address:

Http://download.oracle.com/docs/cd/B19306_01/install.102/b15667/pre_install.htm#CIHFICFD

 

 

 

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