Goldwyn Rodrigues
2013-Aug-21 13:09 UTC
[Ocfs2-devel] PATCH[0/5] nocontrold: Eliminating ocfs2_controld
Hi, This is an effort of removing ocfs2_controld.pcmk and getting ocfs2 DLM handling up to the times with respect to DLM (>=4.0.1) and corosync (2.3.x). AFAIK, cman also is being phased out for a unified corosync cluster stack. fs/dlm performs all the functions with respect to fencing and node management and provides the API's to do so for ocfs2. For all future references, DLM stands for fs/dlm code. The advantages are: + No need to run an additional userspace daemon (ocfs2_controld) + No contrrold devince handling and controld protocol + Shifting responsibilities of node management to DLM layer + Huge reduction in source code, both in kernel and userspace This feature requires modification in the userspace ocfs2-tools. The changes can be found at: https://github.com/goldwynr/ocfs2-tools branch: nocontrold Currently, not many checks are present in the userspace code, but that would change soon. These changes were developed on linux-stable 3.10.y, though they are applicable at the current upstream as well. If you want to give the entire kernel a spin, the link is: https://github.com/goldwynr/linux-stable branch: nocontrold Review comments/suggestions/criticism welcome. -- Goldwyn