[Pkg-iscsi-maintainers] Bug#686595: open-iscsi: Try harder to start LVM when the device synchronisation take more time

[Ritesh Raj Sarraf]

On Wednesday 05 September 2012 11:17 PM, Ritesh Raj Sarraf wrote:
> On Wednesday 05 September 2012 11:13 PM, Peter Gervai wrote:
>> > Upstart works and requires the patch, but as far as I see it's not
>> > really upstarty: it closely emulates sysvinit and doesn't do neither
>> > event driven runs nor parallel processing, so no surprise here.
>> >
>> > For systemd I have to pull up to sid the test system...
> The current init script will show you no difference even when run with
> systemd. What you need is to write a systemd .service for open-iscsi
> that should honor events and call helper applications (in this case
> vgchange).

By the current explanation of 'settle' command in the manpage, ideally
it should wait. But it does not.

   udevadm settle [options]
       Watches the udev event queue, and exits if all current events are
handled.

       --timeout=seconds
           Maximum number of seconds to wait for the event queue to
become empty. The default value is
           120 seconds. A value of 0 will check if the queue is empty
and always return immediately.


Now, we don't call it with any value, which would mean that it waits for
120 seconds, which I doubt happens. Either the manpage is outdated or
else settle is run quick before the queue even gets populated.

Does keeping a sleep of 3 or 4 seconds in between starttargets() and
'udevadm settle' help?

-- 
Ritesh Raj Sarraf
RESEARCHUT - http://www.researchut.com
"Necessity is the mother of invention."


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