[clamav-users] parallel processes fail at startup when clamd is running

Andrew C Aitchison clamav at aitchison.me.uk
Mon Nov 28 16:23:15 UTC 2022


On Mon, 28 Nov 2022, JOHN URBAN via clamav-users wrote:

> We are experiencing a large number of MPI jobs failing indicating
> the fabric is unavailable when the scans are running. Early in the
> investigation so not sure if locking, timing, response time or other
> factors are involved, but I wanted to ask a quick gernal question to
> see if this is a known issue with easy answers. If not, we will post
> more detailed information as it is determined.

Not an issue that I am familiar with.

Are the MPI jobs related to clamav, or just running
on a system with clamav ?

Is clamav doing on-access analysis ?  If so I wonder whether it is
attempting to access the same file, or worse same file-handle, for
each mpi thread, simultaneously.

If I remember correctly "fabric" can be a technical term to do with
message passing, parallelism and networking.
Is that how you are using it ?

-- 
Andrew C. Aitchison                      Kendal, UK
                    andrew at aitchison.me.uk


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