[
https://issues.apache.org/jira/browse/TS-3312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14359703#comment-14359703
]
Alan M. Carroll commented on TS-3312:
-------------------------------------
If Dzmitry is confused then others will be as well.
The issue is the configuration overrides work by setting a value in a
substructure of {{HttpSM}}. In this case the code is located in the
HttpSessionManager release logic. By that point the {{HttpSM}} no longer exists
and therefore any overrides set during the transaction don't exist either and
can't be used. Effectively this means only the global from {{records.config}}
will ever be used. That is, the value is de facto not overriddable even though
the API lets you change it. The solution suggested is to wait until the last
possible moment and then, just before the {{HttpSM}} evaporates, copy the value
over to the {{HttpServerSession}} to be used which makes it overriddable.
What this value controls in this context is a limit on how long the server
session will be held in the session pool. The use case is to be able to control
that based on the server by tweaking this value during the transaction.
> KA timeout to origin does not seem to honor configurations
> ----------------------------------------------------------
>
> Key: TS-3312
> URL: https://issues.apache.org/jira/browse/TS-3312
> Project: Traffic Server
> Issue Type: Bug
> Components: Core, HTTP
> Reporter: Leif Hedstrom
> Assignee: Brian Geffon
> Fix For: 5.3.0
>
> Attachments: keep_alive_timeout.diff
>
>
> Doing some basic testing, with the following settings:
> {code}
> CONFIG proxy.config.http.keep_alive_no_activity_timeout_out INT 120
> CONFIG proxy.config.http.transaction_no_activity_timeout_out INT 30
> {code}
> I see ATS timing out the origin sessions after 30sec, with a
> {code}
> CONFIG proxy.config.http.transaction_no_activity_timeout_out INT 30
> {code}
> What's also interesting, after I made a config change per Geffon's suggestion:
> {code}
> CONFIG proxy.config.http.origin_min_keep_alive_connections INT 10
> {code}
> I see the following in the diagnostic trace:
> {code}
> [Jan 21 14:19:19.416] Server {0x7fb1b4f06880} DEBUG: (http_ss) [0] [release
> session] session placed into shared pool
> [Jan 21 14:19:49.558] Server {0x7fb1b4f06880} DEBUG: (http_ss) [0]
> [session_bucket] session received io notice [VC_EVENT_INACTIVITY_TIMEOUT],
> reseting timeout to maintain minimum number of connections
> [Jan 21 14:20:19.633] Server {0x7fb1b4f06880} DEBUG: (http_ss) [0]
> [session_bucket] session received io notice [VC_EVENT_INACTIVITY_TIMEOUT],
> reseting timeout to maintain minimum number of connections
> [Jan 21 14:20:19.670] Server {0x7fb1b4f06880} DEBUG: (http_ss) [0]
> [session_pool] session 0x1cc5aa0 received io notice [VC_EVENT_EOS]
> {code}
> So, not only is it resetting the timeout twice, it also gets a VC_EVENT_EOS.
> I first though it was the origin that closed the connection, but from what I
> could tell, the timeout on the origin was set to 60s.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
