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Thank you for your report. It is great to hear success stories, and the solution to a problem that was hit. <br id="lineBreakAtBeginningOfMessage">
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<div>On Apr 30, 2025, at 01:01, Äkäslompolo Simppa via lustre-discuss <lustre-discuss@lists.lustre.org> wrote:</div>
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<div>Hi!<br>
<br>
I'd like to give the community an update:<br>
<br>
- we had stability issues with kernel based nfs server exporting our lustre filesystem. We could trigger the problem with a VSCODE setup. The immediate indication was system load increasing on the NFS server, which was tied to nfsd kernel threads going to "D"
state (disk sleep (uninterruptible)).<br>
- only way to recover was to reboot the NFS server. This sometimes killed our lustre MDS.<br>
<br>
- we migrated the NFS gateway servers to user-space NFS-ganesha. Now, since a few weeks, we have not seen issues with the NFS shares. Not with our test case or seen any other issues.<br>
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Best regards,<br>
<br>
--<br>
- Simppa -<br>
Mr. Simppa Äkäslompolo<br>
High performance computing specialist<br>
Doctor of Science (Tech.)<br>
Aalto Scientific Computing<br>
School of Science, Aalto University, Finland<br>
<br>
+358-50-5311327<br>
https://scicomp.aalto.fi/<br>
<br>
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________________________________________<br>
From: Äkäslompolo Simppa <simppa.akaslompolo@aalto.fi><br>
Sent: Thursday, April 3, 2025 13:02<br>
To: OpenSFS Administration via lustre-discuss<br>
Subject: Anyone exporting lustre via NFS-ganesha?<br>
<br>
Hi!<br>
<br>
We are exporting our lustre via NFS gateway nodes. There has been some instability.<br>
<br>
We are currently exploring if we could replace the standard in-kernel NFS server with the user-space NFS-ganesha: https://github.com/nfs-ganesha/nfs-ganesha<br>
<br>
It seems setting it up is more difficult than expected. The documentation isn't super great.<br>
<br>
If there is someone who could share their notes, we would be highly interested in hearing more!<br>
The current thing we are fighting is id-mapping issues, but it doesn't seem to be the last problem :-/<br>
<br>
Thanks!<br>
--<br>
- Simppa -<br>
Mr. Simppa Äkäslompolo<br>
High performance computing specialist<br>
Doctor of Science (Tech.)<br>
Aalto Scientific Computing<br>
School of Science, Aalto University, Finland<br>
<br>
+358-50-5311327<br>
https://scicomp.aalto.fi/<br>
<br>
_______________________________________________<br>
lustre-discuss mailing list<br>
lustre-discuss@lists.lustre.org<br>
http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org<br>
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<div>Cheers, Andreas</div>
<div>—</div>
<div>Andreas Dilger</div>
<div>Lustre Principal Architect</div>
<div>Whamcloud/DDN</div>
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