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https://issues.apache.org/jira/browse/TS-2633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14002549#comment-14002549
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Bryan Call commented on TS-2633:
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[~sudheerv]
Are you going to submit a new patch?
> 406 negative responses being cached for too long
> ------------------------------------------------
>
> Key: TS-2633
> URL: https://issues.apache.org/jira/browse/TS-2633
> Project: Traffic Server
> Issue Type: Bug
> Components: Cache
> Affects Versions: 4.0.2
> Reporter: David Carlin
> Assignee: Bryan Call
> Labels: yahoo
> Fix For: 5.0.0
>
>
> Settings:
> proxy.config.http.negative_caching_enabled = 1
> proxy.config.http.negative_caching_lifetime = 500
> 406 response is being cached, but lifetime isn't being adhered to. They are
> cached for much longer, perhaps indefinitely. I have seen Age: increase to
> several hours.
> With proxy.config.http.negative_caching_enabled = 0 then 406 responses are
> not cached.
> Bryan pointed out that the docs don't list 406 as one of the cached negative
> responses:
> http://trafficserver.readthedocs.org/en/latest/reference/configuration/records.config.en.html
> The value of proxy.config.http.cache.ignore_accept_mismatch has no bearing on
> this issue.
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