[Varnish] #824: Saintmode: repeated failure causes varnish to go into 503 mode
Varnish
varnish-bugs at varnish-cache.org
Mon Dec 6 14:20:42 CET 2010
#824: Saintmode: repeated failure causes varnish to go into 503 mode
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Reporter: grosser2 | Owner: kristian
Type: defect | Status: new
Priority: normal | Milestone:
Component: varnishd | Version: trunk
Severity: normal | Keywords:
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Changes (by kristian):
* owner: => kristian
* component: build => varnishd
Comment:
When you say repeated requests, are those identical requests or requests
to different pages giving 500-errors? And how precise is that "5+/-"
number?
Are you really on trunk, or some other version?
It sounds like you are filling the saintmode list - there is a threshold
(which you can set with saintmode_threshold, defaults to 10 objects). When
you've added more objects to the saintmode list than the threshold
specifies, the entire backend will be considered sick - even if
healthprobes indicate that everything is OK. It sounds like this is what
you are hitting.
It's not really recommended to use saint mode for 30 minutes. And you
should throw in a restart at the end. Typical lengths for saint mode is
20-30 seconds, not minutes, so you're well outside the norm.
--
Ticket URL: <http://varnish-cache.org/trac/ticket/824#comment:1>
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