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https://issues.apache.org/jira/browse/HTTPCLIENT-1800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15801726#comment-15801726
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Nicolai Stäger commented on HTTPCLIENT-1800:
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I created a PR for this change https://github.com/apache/httpclient/pull/62
> Why is Retry around Redirect and not the other way round
> --------------------------------------------------------
>
> Key: HTTPCLIENT-1800
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1800
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient (classic)
> Affects Versions: 4.5.2
> Reporter: Nicolai Stäger
> Fix For: 4.5.3, 5.0 Alpha2
>
>
> I am wondering, why the ServiceUnavailableRetryExec is before the
> RedirectExec in the execChain of the the InternalHttpClient. I am referring
> to the HttpClientBuilder.build() method where the execChain is put together
> something like this:
> Client -> ... -> ServiceUnavailableRetryExec -> RedirectExec -> ...
> We have the following scenario, where this causes an unexpected behavior and
> changing the order would solve this:
> 1. We are sending a request to endpoint A which returns a 303 with the
> endpoint B in the location-header
> 2. The RedirectExec redirects the request to B what returns a 503
> 3. Now the ServiceUnavailableRetryExec is doing its thing but retries to
> endpoint A
> I would expect the behavior of the client to retry to endpoint B instead of
> A. Is there a reason why the chain is implemented this way around or is this
> a "bug".
> Any help very appreciated!
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