On Aug 24, 2010, at 9:50 AM, Scott James Remnant wrote:
> On Tue, 2010-08-24 at 16:23 +0000, Clint Byrum wrote:
>
>> Can we abort the stop from pre-stop somehow? Otherwise I'm afraid users
>> will either be left waiting forever, or still sending SIGKILL.
>>
> You can call "start" from the pre-stop script, which will return the job
> to a running state.
>
This sounds like a solution then... in pseudo code
while true
send shutdown to mysql
wait 5 seconds
if mysql still running
if runlevel not in (0,1,6)
# manual stop, not reboot/halt
if 30 seconds has passed
report to user that mysql will probably die and restart
start again # will respawn mysqld when it does die
else
log warning about waiting forever to reboot/halt..
else
break # service is dead
> That being said, Upstart will happily wait forever for pre-stop before
> sending SIGKILL - so if the database takes a long time to stop, that's
> ok
It would be ok, but I'm not sure I like it.
Would there be an indication anywhere for users that they're waiting on mysql to die?
On Aug 24, 2010, at 9:50 AM, Scott James Remnant wrote:
> On Tue, 2010-08-24 at 16:23 +0000, Clint Byrum wrote:
>
>> Can we abort the stop from pre-stop somehow? Otherwise I'm afraid users
>> will either be left waiting forever, or still sending SIGKILL.
>>
> You can call "start" from the pre-stop script, which will return the job
> to a running state.
>
This sounds like a solution then... in pseudo code
while true
send shutdown to mysql
wait 5 seconds
if mysql still running
if runlevel not in (0,1,6)
# manual stop, not reboot/halt
if 30 seconds has passed
report to user that mysql will probably die and restart
start again # will respawn mysqld when it does die
else
log warning about waiting forever to reboot/halt..
else
break # service is dead
> That being said, Upstart will happily wait forever for pre-stop before
> sending SIGKILL - so if the database takes a long time to stop, that's
> ok
It would be ok, but I'm not sure I like it.
Would there be an indication anywhere for users that they're waiting on mysql to die?