HPE Community
Operating System - HP-UX
1847487 Members
3351 Online
110265 Solutions
New Discussion

"no locks available" issue with HP 11.0

 
SOLVED
Go to solution
Dave_375
Occasional Contributor

‎02-12-2004 02:11 AM

‎02-12-2004 02:11 AM

"no locks available" issue with HP 11.0

I have a server which is expoeriencing frequent situations where jobs/commands fail with error messages relating to file locks. Some examples are:
when running bdf I get "bdf: Cannot open /etc/mnttab: No locks available" and when running kmtune "kmtune: Cannot establish mutual exclusive lock". This si a system-wide problem that occurs for all users. Has anyone experienced this?

Dave Knoch
Borders Group Inc
0 Kudos
Reply
3 REPLIES 3
A. Clay Stephenson
Acclaimed Contributor

‎02-12-2004 02:16 AM

‎02-12-2004 02:16 AM

Re: "no locks available" issue with HP 11.0

If sounds as though nflocks is too small. You will need to increase it and gen a new kernel.
If it ain't broke, I can fix that.
Reply
Jeff Schussele
Honored Contributor

‎02-12-2004 02:18 AM

‎02-12-2004 02:18 AM

Re: "no locks available" issue with HP 11.0

I too believe you nflocks kernel parm is the culprit here.

Rgds,
Jeff
PERSEVERANCE -- Remember, whatever does not kill you only makes you stronger!
Reply
Helen French
Honored Contributor

‎02-12-2004 02:24 AM

‎02-12-2004 02:24 AM

Solution

Re: "no locks available" issue with HP 11.0

This will be a Kernel parameter issue as pointed out. Check tunable parameters values and increase it to a desired limit and regenerate a new kernel (from SAM). Check these parameters:

nflocks
nproc
nfile
ninode
Life is a promise, fulfill it!
Reply
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.