El 5.4.2013 2:57 pm, Niphlod escribió:
this is the second time the issue is posted and yet I can't find a way
to
reproduce it.... It's true that I'm running two scheduler processes on
the
same machine vs one scheduler on on machine and the other on another
separate one, but as far as the "assign" algorithm is concerned, as
long as
there are two scheduler_workers rows, nothing should change.
Just as a proof, can you confirm that when you start two schedulers on
the
same server you observe the same behaviour ?
somehow I solved it:
On each server the worker is started with a different group name and
each task is assigned to a group name randomly chosen from those
reported in the database:
with n server start the workers like this:
server1: python /home/www-data/web2py/web2py.py -K myapp # group name
main
server2: python /home/www-data/web2py/web2py.py -K myapp:srv2
server3: python /home/www-data/web2py/web2py.py -K myapp:srv3
...
serverN: python /home/www-data/web2py/web2py.py -K myapp:srvN
for a group name at random from the available:
def get_groups_names():
rows = db(db.scheduler_worker.id >
0).select(db.scheduler_worker.group_names).as_list()
mylist = []
for row in rows: mylist.extend(row['group_names'])
tmp = set(mylist) #make it a set
return [item for item in tmp]
and to assign a task to a group:
...
scheduler.queue_task(some_task,
...,
group_name=random.choice(get_groups_names())
)
...
After doing that, the WORKERS started working without problems and
tasks are not waiting if there are WORKERS idle.
On Friday, April 5, 2013 8:47:58 PM UTC+2, Yoel Benitez Fonseca wrote:
El 5.4.2013 6:47 am, Niphlod escribió:
what db are you using ?
postgres, is the same database shared between servers
On Friday, April 5, 2013 6:24:13 AM UTC+2, Yoel Benitez Fonseca
wrote:
i have this setup:
2 severs with the same web2py & app installed, each of then run a
scheluder worker
the problem is that only one of then get jobs, and in
db.scheluder_worker the one with do all the work is the only with
true
in is_ticker field, i just the 2 of em cooperate and pickup the
available jobs.
P.D: got them in diferent's groups and randomly assing task to the
groups.
--
Yoel Benítez Fonseca
Tel: 573400
--
Yoel Benítez Fonseca
Tel: 573400
--
Yoel Benítez Fonseca
Tel: 573400
--
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