nscd cpu utilization high issue on red hat

vikas.gadhave · 02-28-2013, 03:25 AM

Hello Guy's

I am using NSCD for caching, on red hat 5.8 server.
but now nscd process is taking more than 90% cpu and now my server is too slow because of nscd.

is there any solution for this ?

I have resatrted the nscd but when it get start problem is still there....

please find the below log for more info and let me know if you need more info from server.

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND

3922 nscd 25 0 143m 30m 2412 R 94.7 1.5 37999:30 nscd

-Vikas-

fortran · 02-28-2013, 05:53 AM

Does this problem occurs on machines with LDAP connection or without LDAP connection?

vikas.gadhave · 02-28-2013, 05:59 AM

Thx for your prompt reply.

yes we use LDAP for authentication.

-Vikas-

fortran · 02-28-2013, 07:38 AM

This issue has been reported as Kernel bug for RHEL.
In most cases updating kernel has solved the issue.
Check your kernel version. It should be updated.

vikas.gadhave · 02-28-2013, 10:13 PM

well again Thx !!

just now I checked my kernel details on all servers where I am facing "NSCD" issue.

cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.8 (Tikanga)
uname -a
Linux <server name> 2.6.18-308.1.1.el5 #1 SMP Fri Feb 17 16:47:13 EST 2012 i686 athlon i386 GNU/Linux

I will update the latest kernel and reply you once done in between if any one found other than this solution please let me know....

-Vikas-