[lustre-discuss] cp fails on RHEL9.5 cp: error copying No data available

[Äkäslompolo Simppa]

Dear all.

Our problem was due to LU-18103. This patch seem to have fixed it:
https://review.whamcloud.com/c/fs/lustre-release/+/56093

Best regards,
--
- Simppa -
Mr. Simppa Äkäslompolo
High performance computing specialist
Doctor of Science (Tech.)
Aalto Scientific Computing
School of Science, Aalto University, Finland

+358-50-5311327
https://scicomp.aalto.fi/


________________________________________
From: Äkäslompolo Simppa <simppa.akaslompolo at aalto.fi>
Sent: Friday, March 14, 2025 12:39
To: OpenSFS Administration via lustre-discuss
Subject: cp fails on RHEL9.5   cp: error copying No data available

Hi!

I thought I'd give an early warning this time.

We have HPE lustre client B19 + this patch https://review.whamcloud.com/c/fs/lustre-release/+/57007 on RHEL9.5

We just found out that copying doesn't work with cp. Possibly due to it using: copy_file_range to do the copying.

If the file is read into local cache, the copy succeeds. Otherwise you get "cp: error copying No data available"

Back to RHEL9.4 --- again!

Best regards,
--
- Simppa -
Mr. Simppa Äkäslompolo
High performance computing specialist
Doctor of Science (Tech.)
Aalto Scientific Computing
School of Science, Aalto University, Finland

+358-50-5311327
https://scicomp.aalto.fi/