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https://issues.apache.org/jira/browse/TS-4396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15265079#comment-15265079
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Felix Buenemann edited comment on TS-4396 at 4/30/16 2:15 AM:
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There is a related bug that causes an endless redirect loop in ATS when using
the following settings:
proxy.config.http.redirection_enabled = 1
proxy.config.http.number_of_redirections = 1
This causes the loop:
proxy.config.http.redirect_use_orig_cache_key = 1
The work around as above is to set:
proxy.config.http.number_of_redirections = 2
During the loop the squid.blog shows endless lines of TCP_MISS_REDIRECT/307 0
GET <url-from-location-of-the-redirect>.
I am running ATS/6.1.1 in reverse proxy mode with a single map entry for the
origin that returns the redirects and pristine host headers enabled. The URL
being redirected to does not match anything in the remap.config.
While looping trafficserver consumes 100% cpu and needs to be restarted to
recover.
was (Author: felixbuenemann):
There is a related bug that causes an endless redirect loop in ATS when using
the following settings:
proxy.config.http.redirection_enabled = 1
proxy.config.http.number_of_redirections = 1
This causes the loop:
proxy.config.http.redirect_use_orig_cache_key = 1
The work around as above is to set:
proxy.config.http.number_of_redirections = 2
During the loop the squid.blog shows endless lines of TCP_MISS_REDIRECT/307 0
GET <url-from-location-of-the-redirect>.
I am running ATS/6.1.1 in reverse proxy mode with a single map entry for the
origin that returns the redirects and pristine host headers enabled. The URL
being redirected to does not match anything in the remap.config.
> Off-by-one error in max redirects with redirection enabled
> ----------------------------------------------------------
>
> Key: TS-4396
> URL: https://issues.apache.org/jira/browse/TS-4396
> Project: Traffic Server
> Issue Type: Bug
> Reporter: Felix Buenemann
>
> There is a problem in the current stable version 6.1.1 where the setting
> proxy.config.http.number_of_redirections = 1 is incorrectly checked when
> following origin redirects by setting proxy.config.http.redirection_enabled =
> 1.
> If the requested URL is not already cached, ATS returns the redirect response
> to the client instead of storing the target into the cache and returning it
> to the client.
> The problem can be fixed by using proxy.config.http.number_of_redirections =
> 2, but we are only following one redirect, so this is wrong.
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