To fix the “svc_clts_kdup no slots free” error

Posted on September 4, 2008

Today,Many users tell me that then cannot access some files by NFS sometimes ,and sometimes then can.

And I found the following messages in the /var/adm/messages.

Sep 1 13:03:24 “Hostname” rpcmod: [ID 885019 kern.warning] WARNING: svc_clts_kdup no slots free

This message tell me that there are too many nfs slots.exceed 1024,so users can not apply a slot to use nfs service.

Solution:

To modify the nfs parameter to enlarger the nfs slot number.Add the to lines to your /etc/system file:

set rpcmod:maxdupreqs=4096(Or other number more than 1024 you want)
set rpcmod:cotsmaxdupreqs=4096(Or other number more than 1024 you want)

Then run /etc/init.d/nfs.server restart to restart the nfs service to enable this parameter.

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