in_process_exporter_metrics: convert rss memory from pages to bytes

[Bedledl]

https://github.com/fluent/fluent-bit/issues/9343

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Testing Before we can approve your change; please submit the following in a comment:

• [x] Example configuration file for the change
• [x] Debug log output from testing the change

• [ ] Attached Valgrind output that shows no leaks or memory corruption was found

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• [ ] Backport to latest stable release.

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Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.

[Bedledl]

Example configuration: fluent-bit -i process_exporter_metrics -p metrics="memory" -o stdout

Output thats shows successful fix: process_memory_bytes{name="rsyslogd",pid="167",ppid="1",type="rss"} = 483328

cat /proc/167/status | grep Rss RssAnon: 472 kB RssFile: 0 kB RssShmem: 0 kB

[cosmo0920]

Could you use signed-off in your commit? We use DCO and it complains signed-off is missing:

Summary

Commit sha: 09989e7, Author: Bettina Riedl, Committer: Bettina Riedl; The sign-off is missing.

[Bedledl]

Could you use signed-off in your commit? We use DCO and it complains signed-off is missing:

Summary

Commit sha: 09989e7, Author: Bettina Riedl, Committer: Bettina Riedl; The sign-off is missing.

Added sign-off :)

[Bedledl]

Force push was rebase on current main

[pawelrubin]

Hi all, any chance to get this fix merged?