A good strategy could be to make OpenVZ become fully as an LXC enhancement, and apply patches thinking in datacenter scenario for LXC. This focus could make easier to follow Linux kernel versions.
OpenVZ for Linux 2.6.32 is excellent, but the time makes grow some matters that didn't seem a problem in 2010. El 24/03/15 a les 10:05, Pavel Odintsov ha escrit: > Hello, folks! > > CentOS 6 with 2.6.32 kernel is real nightmare (even in case of > networking) from my point of view. Simple syn flood could KILL my > HWN's (I can share details off list). > > You (Parallels) and RH do big amount of backporting but upstream is > far away in future. > > Difference even between 3.17 and 3.18 kernels is EXTREMELY HUGE. You > could look at diffs here > https://github.com/torvalds/linux/commits/master. And performance > could be improved for 50-70% with this upgrade (I assume even more > speed up with update from 2.6.32RH to 3.18). > > Red Hat interested only in few things about 2.6.32 kernel for running > Java and KVM (with Oracle?). But storages (what about stable > filesystem like ZFS instead bunch-of-crap-ext4 and > it-will-be-non-stable-for-ever-btrfs?), networking (routing! routing! > routing!) and many other extremely important things is out of focus. > > And I have innate desire to test new RHEL 7 kernel and switch my > hundreds of servers to it :) > > But this kernel based on enough old 3.10 kernel will be "obsolete" > since release (look at my comparison about 3.17 & 3.18 kernel). > > IMHO, best approach for OpenVZ will be "follow the upstream" because > your patch have significantly reduced since 2.6.32. > > You are trying to keep up stability with following to Red Hat with old > kernels but in reality OpenVZ kernel is not really stable (you could > grep my bug reports at bugzilla.openvz.org and found hundreds of > issues with stability) even with RH kernel. > > My instances with upstream kernel could work many months without any > issues. Yep, it's enough stable and completely suitable for OpenVZ > HWN's. > > _______________________________________________ Users mailing list Users@openvz.org https://lists.openvz.org/mailman/listinfo/users
