How to tune tcp_keeplive_* knobs for a container on Red Hat Enterprise Linux 7 ?

Solution In Progress - Updated -

Issue

  • How to tune tcp_keeplive_* settings for a container on Red Hat Enterprise Linux 7 ?
  • Not able to set tcp_keepalive_* setting on a docker container. Following error is seen
-bash-4.2# uname -a
Linux test 3.10.0-514.26.1.el7.x86_64 #1 SMP Tue Jun 20 01:16:02 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux
-bash-4.2# docker run -it --sysctl net.ipv4.tcp_keepalive_time=2400 busybox sysctl -a |grep keepalive_time
/usr/bin/docker-current: Error response from daemon: invalid header field value "oci runtime error: container_linux.go:247: starting container process caused \"process_linux.go:359: container init caused \\\"open /proc/sys/net/ipv4/tcp_keepalive_time: no such file or directory\\\"\"\n".

Environment

  • Red Hat Enterprise Linux 7
  • docker-1.12.6-32

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