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11gR2 install fails with “Hard Limit: maximum user processes” error

Just finished dealing with “Hard Limit: maximum user processes” error on Open Solaris 10 while installing 11gR2:

11gR2 install fails with

Oracle Metalink was useless — total waste of time — I hate that site now, it’s gone completely into the crapper.

SOLUTION (thanks to David D’Acquisto advice):

1) edit /etc/system as follows:

set shmsys:shminfo_shmmax=12025908428
set shmsys:shminfo_shmmni=100
set shmsys:shminfo_shmseg=10
set semsys:seminfo_semmni=100
set semsys:seminfo_semmns=1024
set shmsys:shminfo_shmmin=1
set max_nprocs=30000
set maxuprc=16384

2) setup project for oracle user (if it’s already setup then just ignore the duplicate error while running projadd command):

projadd -U oracle user.oracle
projmod -s -K "project.max-sem-ids=(priv,100,deny)" user.oracle
projmod -s -K "process.max-sem-nsems=(priv,256,deny)" user.oracle
projmod -s -K "project.max-shm-memory=(priv,12025908428,deny)" user.oracle
projmod -s -K "project.max-shm-ids=(priv,100,deny)" user.oracle
projmod -s -K "process.max-file-descriptor=(priv,65536,deny)" user.oracle

3) bounce the box:

init 6

Here’s how to check for the setting:

## before above changes were applied
##
$ kstat|grep v_proc
        v_proc                          16362
$
 
$ kstat |grep v_maxup
        v_maxup                         16357
        v_maxupttl                      16357
$
 
## after changes/reboot
##
 
$ kstat|grep v_proc
        v_proc                          30000
$
 
$ kstat |grep v_maxup
        v_maxup                         16384
        v_maxupttl                      29995
$

NOTE: the setting above are based on 16gb of RAM if yours is less/more — adjust as per David’s formula.

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One Response to “11gR2 install fails with “Hard Limit: maximum user processes” error”

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    Blogroll Report 12/02/2009 – 19/02/2010 « Coskan’s Approach to Oracle:

    [...] 3-Solution to “Hard Limit: maximum user processes” error in 11GR2 on Solaris Vitaliy Mogilevskiy-11gR2 install fails with “Hard Limit: maximum user processes” error [...]

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My name is Vitaliy Mogilevskiy -- I started working with ORACLE Products in 1996 (Oracle v7, 7.3.4 was pretty good).

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