[PATCH] Fix incompatibility between CTDB NFS RPC service restoration and systemd (bug 13860)
amitay at gmail.com
Fri Mar 29 06:26:38 UTC 2019
On Fri, Mar 29, 2019 at 2:02 PM Martin Schwenke via samba-technical
<samba-technical at lists.samba.org> wrote:
> When CTDB detects that NFS RPC services have failed it attempts to
> restart them. For a subset of services that generally have not had
> their own initscript, CTDB constructs a command-line by hand and starts
> the RPC service directly.
> Now that we're testing CTDB on a platform with systemd, we have noticed
> that this plays very badly with systemd and probably any other init
> system that provides fine-grained control over all of the RPC services,
> tracking them with PID files, stopping and starting them carefully.
> For example, let's say that CTDB hand-restarts rpc.statd after a
> failure. Later, when systemd tries to restart rpc.statd it will be
> unable to do some because it is already running.
> So, instead of restarting RPC services manually, do all service
> stops/starts via the NFS call-out. When systemd is in use those
> restarts are done via systemd. The default for the call-out is now to
> use systemd, but it can be made to use Sys-V init services via a single
> line change.
> A couple of related buglets are also fixed.
> Please review and maybe push...
> peace & happiness,
Pushed to autobuild.
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