Re: Changing systemd startup timeout
On Wed 16 May 2018 at 14:09:43 (+0200), Sven Joachim wrote:
> On 2018-05-16 06:04 -0500, Dave Sherohman wrote:
>
> > I'm running a galera cluster of three mariadb servers. It's been
> > brought down twice because one node has detected an inconsistency,
> > killed itself, and then systemd automatically restarted it. This is all
> > good so far.
> >
> > The problem comes in when it tries to restart and, because it shut down
> > in an inconsistent state, it wants to do a full state transfer to get
> > back in sync with the rest of the cluster, which involves copying
> > (potentially) 24G of data. Performing this transfer takes long enough
> > that systemd times out, assumes the restart failed, and kills it, so
> > it's not possible to bring the node back online without bypassing
> > systemd and running mysqld_safe manually.
> >
> > Based on some web searches, I've tried using `systemctl edit mysql` to
> > set "TimeoutStartUSec=infinity", but this does not appear to actually
> > have any effect, even after reloading the systemd daemon:
> >
> > # systemctl edit mysql
> > <add the setting using vim>
> > # systemctl show mysql -p TimeoutStartUSec
> > TimeoutStartUSec=1min 30s
> > # systemctl daemon-reload
> > # systemctl show mysql -p TimeoutStartUSec
> > TimeoutStartUSec=1min 30s
> > # systemctl daemon-reexec
> > # systemctl show mysql -p TimeoutStartUSec
> > TimeoutStartUSec=1min 30s
> >
> > What do I need to do to make this actually work?
>
> Have you tried setting TimeoutStartSec rather than TimeoutStartUSec?
> Though I have to admit that I did not perform a web search but cheated
> by looking at the systemd.service(5) manpage, which mentions the former
> but not the latter.
https://bugzilla.redhat.com/show_bug.cgi?id=1018335
seems to lend support. What OP might be doing:
TimeoutStartUSec = desiredByOP
and then systemd comes along and does:
TimeoutStartSec set? No, so:
TimeoutStartSec = DefaultTimeoutStartSec
and then, for internal use, TimeoutStartUSec = TimeoutStartSec
trampling on the OP's setting.
Presumably the OP is running a new enough systemd for infinity
to be acceptable.
Cheers,
David.
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