Mailing List Archive: Apache: Bugs

[Bug 48735] bybusyness does not balance after failed worker has recovered

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bugzilla at apache

Jul 24, 2012, 7:17 AM

Post #1 of 4 (149 views)
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[Bug 48735] bybusyness does not balance after failed worker has recovered

https://issues.apache.org/bugzilla/show_bug.cgi?id=48735

Ahiel <ahielg [at] liveperson> changed:

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bugzilla at apache

Jul 27, 2012, 5:19 AM

Post #2 of 4 (143 views)
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[Bug 48735] bybusyness does not balance after failed worker has recovered [In reply to]

https://issues.apache.org/bugzilla/show_bug.cgi?id=48735

--- Comment #20 from Jeff Trawick <trawick [at] apache> ---
A fix has been committed to trunk
(http://svn.apache.org/viewvc?view=revision&revision=1366344) and proposed for
2.4.x. (2.2.x will follow that.)

The handling of the busy flag is different than either proposal here. Feel
free to comment on the viability of that. Note that this exact fix has thus
far been tested only with trunk and 2.4.x. Potentially something different
would be necessary for 2.2.x.

Additionally, changes to use atomic operations or augment the balancer manager
have not been considered. I suggest tracking those with different bugs.

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bugzilla at apache

Jul 29, 2012, 4:30 PM

Post #3 of 4 (134 views)
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[Bug 48735] bybusyness does not balance after failed worker has recovered [In reply to]

https://issues.apache.org/bugzilla/show_bug.cgi?id=48735

--- Comment #21 from Jeff Trawick <trawick [at] apache> ---
>Additionally, changes to use atomic operations or augment the
>balancer manager have not been considered. I suggest tracking
>those with different bugs.

a. atomic operations

I just opened

Bug 53618 - proxy_worker_shared fields not maintained in thread-safe manner

for the thread-safe handling of busy.

b. balancer manager display

httpd trunk and 2.4 already display the extra information.

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bugzilla at apache

Jul 29, 2012, 4:56 PM

Post #4 of 4 (135 views)
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[Bug 48735] bybusyness does not balance after failed worker has recovered [In reply to]

https://issues.apache.org/bugzilla/show_bug.cgi?id=48735

--- Comment #22 from Jeff Trawick <trawick [at] apache> ---
Applying this patch from httpd trunk/2.4.x fixes the issue for me:

http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy_balancer.c?r1=1366344&r2=1366343&pathrev=1366344
That's what I'll propose for the 2.2.x branch. Can anyone reproduce the
problem with this new patch applied?

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