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https://issues.apache.org/jira/browse/TS-3720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14717122#comment-14717122
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ASF subversion and git services commented on TS-3720:
-----------------------------------------------------
Commit 7fb3f7fdf81b8dacf40230b3f647c60a1cfb29a9 in trafficserver's branch
refs/heads/5.3.x from [~jacksontj]
[ https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;h=7fb3f7f ]
Revert "TS-3237: Don't segregate DNS results by port."
Fixes: TS-3720
(cherry picked from commit 6e33c64c18f93efc6921e0573f87da03251164ed)
> HostDB no longer keeps track of host failures
> ---------------------------------------------
>
> Key: TS-3720
> URL: https://issues.apache.org/jira/browse/TS-3720
> Project: Traffic Server
> Issue Type: Bug
> Affects Versions: 5.3.0, 6.0.0
> Reporter: Thomas Jackson
> Assignee: Thomas Jackson
> Fix For: 5.3.2, 6.0.0
>
>
> If ATS's DNS response was N A records, and one is unavailable ATS will always
> send traffic to the down origin regardless of configuration. This bug seems
> to be due to how hostdb is keeping track of DNS + health of the origin.
> Regression was introduced in https://issues.apache.org/jira/browse/TS-3237
> (https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;h=a8d1862).
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