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Re: Uninterruptible sleep apache process while aceessing nfs on debian 12 bookworm



Carlos Llamas wrote:

> When this happens, apache2 processes on a backend VM (NFS client
> machine) wait in state D for a long time (I was only able to trace a
> file, and lasted 90s until file unlocked).

It sounds like the process is trying to unlock a file, and the system
call hangs for 90 seconds.  Do I understand you correctly?

What version of the NFS protocol are you using for the mounts?

> We have the same software versions across all machines and they get
> updated every morning at 6 am. 

Which machines get updated?  Just the NFS clients, or the NFS server,
too?  Does the update involve a reboot?

mike


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