Raghavendra Prabhu

+1 on this. It would be good to define liveness and safety in first chapter of definitions: http://book.mixu.net/distsys/intro.html

Can we document the side-effects of this change in the PR. Can this be applied in-place or does this require re-creation of objects (statefulsets, deployments etc.). Thanks.

With perf trace, I can confirm (on CentOS 7.1 + overlayfs) ``` 80407.179 ( 0.034 ms): perl/27590 mkdir(pathname: 0x214d6d0, mode: 511 ) = 0 80414.361 ( 0.146 ms): perl/27590 mkdir(pathname:...