9. Kernel and Docker bugs
After much debugging, we found that specific combinations of
kernel version and Docker version create a major problem with
memory accounting. In our case, combining kernel version
3.19 with Docker version 1.12 exposed this bug. We had been
running the 3.19 kernel for a long time, and it wasn’t
immediately obvious that the kernel was a contributing factor
to memory issues.
• https://www.elastic.co/blog/memory-issues-well-
remember#sthash.DE6xdRMu.dpbs