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2 Commits

Author SHA1 Message Date
Markus Hilger fb41537555 Increase net.core.rmem_max to 4 MB 
This was introduced 8 years ago. Newer OSs have 4194304 as default.
Confluent shouldn't decrease the default.

RHEL 8           212992
RHEL 9          2097152
RHEL 10         2097152
Fedora 44       4194304

Ubuntu 24.04     212992
Ubuntu 26.06    4194304

SLES 15          212992
SLES 16          212992

It was changed to 4MB in upstream kernel, too:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a6d4f25888b83b8300aef28d9ee22765c1cc9b34
 2026-07-15 03:26:02 +02:00
Jarrod Johnson 87e2e481c2 Tune the UDP receive buffer 
We have a sysctl tune file and option to
go higher so that we get more SLP responses.
 2017-08-11 15:43:44 -04:00