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https://issues.apache.org/jira/browse/TS-3725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14617767#comment-14617767
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ASF GitHub Bot commented on TS-3725:
------------------------------------

GitHub user jacksontj opened a pull request:

    https://github.com/apache/trafficserver/pull/242

    Add tests for TS-3725

    This includes allowing loopback addresses in hosts files. @SolidWallOfCode 
had some concerns, but from my testing I can't see any reason why we wouldn't 
allow this here.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/jacksontj/trafficserver master

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/trafficserver/pull/242.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #242
    
----
commit 5a3b1395659d1abb482890ab2de09edcd35d9cb9
Author: Thomas Jackson <[email protected]>
Date:   2015-07-07T02:21:53Z

    Allow for loopback addresses in a hosts file

commit 214cd38036955d0305605e8de3ee49a2360fc567
Author: Thomas Jackson <[email protected]>
Date:   2015-07-07T02:50:23Z

    Add basic tests for the Hosts file implementation in ATS

----


> ATS's use of host files is broken
> ---------------------------------
>
>                 Key: TS-3725
>                 URL: https://issues.apache.org/jira/browse/TS-3725
>             Project: Traffic Server
>          Issue Type: Bug
>    Affects Versions: 5.3.0, 6.0.0
>            Reporter: Thomas Jackson
>            Assignee: Thomas Jackson
>             Fix For: 6.0.0
>
>
> The previous implementation actually loaded up the hosts file (in a 
> background thread) and did a get (getbyname_imm) and then set the IPs to 
> match. This works-- but does cause a problem since the port set on it is 0.
> What we need to do is have this thread maintain in an in-memory mapping of 
> name -> ip and have it override resolution within hostdb-- that way we can 
> use host files and maintain whether reals are up or down.



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