nate writes:
lhecking@users.sourceforge.net wrote:
Reading the "waiting IOs" thread made me remember I have a similar problem that has been here for months, and I have no sulution yet.
A single CentOS 5.2 x86_64 machine here is overloading our NetApp filer with excessive NFS getattr, lookup and access operations. The weird thing is
There was a kernel update in the 5.2/5.3 time frame that fixed a NFS client bug regarding lookups, what kernel are you running?
2.6.18-92.1.22.el5. I can test all newer kernels if necessary.
Have you tried running lsof on the client side to see which processes are using the files served over NFS?
Yes, but there's simply too much output to make this useful, and most of it, about 75%, is related to EDA software which is installed on the filer. I.e. 3rd party software we have no control over and don't know what it does internally.