Maximum file parameter

[Fadia Almarei]

Dear All

we have a problem in maximum opened file , we set the parameter file-max = 65535 which the maximum ,but we still get the problem,that we exceed the maximum number , what should we do to solve this problem ?
BR

[Ivan Ferreira]

Maybe is a shell limit, check /etc/security/limits.conf

[Fadia Almarei]

no , i alrady change it on limit.conf file

[Steven Schweda]

> what should we do to solve this problem ?

Don't open so many files?

Close some files?


What, exactly, are you doing when you have
this problem? How many open files do you
have? (How many do you need?)

[Bill McNAMARA_1]

what does ulimit return?

[Bill McNAMARA_1]

try
ulimit -u unlimited

[skt_skt]

"parameter file-max"???

what change u made on /etc/security/limits.conf?

[Fadia Almarei]

this is what i chande in limits.conf file

* soft nofile 65535
* hard nofile 65535


ulimit -u gives
137215


ulimit -n gives
65535

[skt_skt]

In HP-UX nofiles is controlled by kernel parm maxfiles(soft)

#kmtune|grep maxf
maxfiles 2048 - 2048
maxfiles_lim 8192 Y 8192

#ulimit -a|grep nofiles
nofiles(descriptors) 2048

So in LINUX you may have somthing simialar and give a shot by changing fs.file-max. Your "soft nofile" and fs.file-max are possibly related.

# sysctl -a|grep -i fs.file-max
fs.file-max = 8192

[Steven McCoy]

After you change parameters in /etc/sysctl.conf, don't forget to run:

sysctl -p

[Fadia Almarei]

all the changes i made is correct also i increase the valuefor the parameter to be 1048576. but still we get the error message.any idea

[Steven McCoy]

Often times when you change those parameters you need to start a new session as the user running the application. Have you stopped the application, logged off the application user, logged in the application user (into a new session), and restarted the application?

A reboot really shouldn't be necessary, but have you tried one since making those changes?

You are sure you ran 'sysctl -p' when you updated the /etc/sysctl.conf file?

[Fadia Almarei]

am sure that the parameter is taken by the system , but i will try to do restart to the server to see the effect and inform you

[skt_skt]

go with restarting the application.. the changes are dynamic to the server ma not to the APP/DB.