uneven distribution of load between workers

[bjornf]

Hi,

Can 0.2ms versus 0.8ms latency to gearmand server explain why 1 worker have almost 10 times more mod_gearman processes? Is there a way to distribute this better?

Regards, Bjorn

[Sven Nierlein]

Hi,

Could be. The daemon wakes all connected servers and the first responding worker gets the job. It will distribute more evenly if
that worker is busy. But as long as the faster one can handle all jobs, it's totally normal that this one does more jobs than
the other.
You could experiment with the gearmand options like round-robin and wakeup numbers to see if this makes a difference. But as long
as this is just a "cosmetic" thing, i wouldn't spend too much time on it.

Cheers,
Sven

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[bjornf]

Hi,

Well, it's not the cosmetics I am concerned about. It's the uneven load of the workers.  You mean that an overloaded worker would not be able to pull(much), once it's overloaded? No risk of one worker getting overloaded?

Regards, Bjorn

[Sven Nierlein]

Right, once the faster server gets a decent load, it will become slower than the other and then the load will be shared more between those two.

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