Affects Version/s: None
Fix Version/s: None
Component/s: Documentation & Website
Looking at the System Administrator's Guide, I
see that you recommend setting vm.swappiness = 0 in /etc/sysctl.conf. This
is fine in most cases, but must be avoided on RHEL 6.4 through 6.7.
On RedHat kernels pre-2.6.32-642, there's a bug which can cause the OOM
killer to aggressively kill processes even when RAM is still available and
swap is unused. See this RedHat article for more information. (A
RedHat support login is required; if you don't have one, please contact me.)
I kindly recommend you add a note to your docs advising users not to apply
this setting on affected kernels. Thank you!