Public bug reported:
I was upgrading a small 16.04 hpc cluster to 20.04 and noticed the
following. An nfs v3 mount causes netcdf4 file reads to fail. Nfs v4
mounts from the nfs server running 20.04 works fine. Netcdf3 files work
fine with both nfs v3 and v4 mounts. I checked a 16.04 setup and 18.04
setup and they have no issues reading netcdf4 files with nfs v3 mounts.
To reproduce this issue, please try any netcdf4 file and try to read the
headers like this -
ncdump -s -h <filename.nc>. I needed v3 mounts, as I am using posix acls with
zfs on the nfs server. So this is an issue particular to nfs server on 20.04
and I would have to move to 18.04 and stay there for a lots of other 16.04
servers and clusters till a solution is found to this issue. Thanks.
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1903974
Title:
issue reading netcdf4 files with nfs v3 on ubuntu 20.04
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