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https://issues.apache.org/jira/browse/TS-2385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Susan Hinrichs updated TS-2385:
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Fix Version/s: (was: 5.2.0)
5.3.0
> http.origin_max_connections is ignored when http.keep_alive_post_out is set
> ----------------------------------------------------------------------------
>
> Key: TS-2385
> URL: https://issues.apache.org/jira/browse/TS-2385
> Project: Traffic Server
> Issue Type: Bug
> Components: Core
> Affects Versions: 3.0.5, 4.0.2
> Reporter: Wilson Ho
> Assignee: Susan Hinrichs
> Fix For: 5.3.0
>
>
> Using the following settings:
> CONFIG proxy.config.http.server_max_connections INT 0
> CONFIG proxy.config.http.origin_max_connections INT 200
> CONFIG proxy.config.http.keep_alive_post_out INT 1
> The origin_max_connections is NOT honored and at some point TS would start
> creating much much more than 200 connections to each origin server.
> To repeat:
> 1) simulate 1000 clients and have each of them continuously send requests to
> TS. It doesn't matter if these are GET or POST requests.
> 2) monitor the number of TCP connection to the origin server.
> 3) The origin_max_connections might hold up for a few minutes, but after a
> while, it starts to "break" and you would see close to 1000 connections being
> created.
> If keep_alive_post_out is turned off, then using the same experiment, TS
> maintains the outgoing connection count pretty steadily at 200.
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