kernel: increase max_dgram_qlen sysctl value to 512 #3139
Merged
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Issue number: #3059
Description of changes: Increase the kernel's default value for the net.unix.max_dgram_qlen sysctl to 512. This is a change to the kernel rather than a plain sysctl setting since systemd-sysctl only applies settings to the host, while the changed default value in the kernel also applies to every new network namespace.
I will propose this upstream as well. In case of rejection, Bottlerocket can continue to carry this downstream without any expected maintenance effort.
Testing done:
With a plain Fedora pod (
test
) on a aws-k8s-1.23 x86_64 node running...with this change:
...without this change:
Terms of contribution:
By submitting this pull request, I agree that this contribution is dual-licensed under the terms of both the Apache License, version 2.0, and the MIT license.