Hi experts,
I found one interesting thing about ansible fork and serial. But don’t know what is the exact relationship between these two values.
Following is the result of my testing:
21 VMs
- fork=10, serial=100%, ansible will fail with some hosts unreachable randomly.
- fork=15/25, serial=100%, ansible will success.
- fork=10, serial=10. ansible will success.
Te conclusion: seems the serial shall be less than fork, or can’t be much larger than fork.
Question:
- the randomly unreachable failure is a ansible bug? I foud one issue report: https://github.com/ansible/ansible/issues/18188
- Is there any suggestion about the fork and serial value setting? I don’t find any document about this.
Thanks,
Ruby