Oracle RAC in Docker fails on Ubuntu Server 20.04.4 LTS with Error response from daemon: Your kernel does not support CPU real-time scheduler

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Oracle RAC in Docker fails on Ubuntu Server 20.04.4 LTS with Error response from daemon: Your kernel does not support CPU real-time scheduler #2346

Closed ghost closed 11 months ago

ghost commented 2 years ago

Apparently, it needs a real time kernel, which involves recompiling and installing a custom kernel. However, Ubuntu claims their low latency kernel is good enough:

https://ubuntu.com/blog/industrial-embedded-systems https://ubuntu.com/blog/industrial-embedded-systems-ii https://ubuntu.com/blog/industrial-embedded-systems-iii

Possibly they will have a RT kernel soon. But, the question is. is the low latency kernel good enough? I'm am not asking for production purposes.

psaini79 commented 2 years ago

@Altitude-Dashboard , RAC requires RT processes as of today so better to have it. RAC on Docker is supported on OL7.x. For details, please refer following:

https://docs.oracle.com/en/database/oracle/oracle-database/21/racdk/oracle-real-application-clusters-installation-guide-docker-containers-oracle-linux-x86-64.pdf

saurabhuja commented 11 months ago

Can we close this issue, we know it works on OL7 which is supported. Ubuntu is not supported at the moment.

psaini79 commented 11 months ago

Closing this issue. Please reopen if you have any question.