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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 44454] - busy count reported in mod_jk inflated, causes incorrect balancing
Date Thu, 21 Feb 2008 00:36:24 GMT
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------- Additional Comments From rainer.jung@kippdata.de  2008-02-20 16:36 -------
optimistic/pessimistic: that's right. As I said, switching to ptimistic will
most likely not help with this issue, but I would expect less risk for other issues.

graceful: I was thinking about graceful restarts, which let threads end their
request, but thought they might not be able to decrease the busy counter in the
shared memory any more. As you said, that does not seem to be the reason for
your problem.

Another comment: the busy count is not really what's used by the Busyness
method. We still use what's called "V" in the status output. It should be the
same as busyness, in case all load factors are 1, and otherwise some bigger
numbers indicating weighted busyness. As you observe problems in the balancing,
I expect the "V" values to get inflated as well. Right?

The factor by which V differs from busy is shown as multiplicity "M" in the
status output. Thos are integers which have the same ratios for the different
workers as 1/(load factor).


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