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https://issues.apache.org/jira/browse/DRILL-4354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15191434#comment-15191434
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Krystal commented on DRILL-4354:
--------------------------------

git.commit.id.abbrev=64ab0a8

disabled authentication in drill-override.conf with 
drill.exec.http.session_max_idle_secs=10.

With debug turned on, saw the following session info in the drillbit.log file 
using drill-1.5:
2016-03-11 09:55:12,368 [qtp747584933-50] DEBUG 
o.a.drill.exec.client.DrillClient - Connecting to server <hostname>:31010
2016-03-11 09:55:23,382 [Scheduler-1866682207] DEBUG 
o.apache.drill.exec.rpc.BasicClient - Closing client
2016-03-11 09:55:23,382 [Client-1] INFO  o.a.drill.exec.rpc.user.UserClient - 
Channel closed /<ip>:57195 <--> /<ip>:31010.

In drill-1.6, the above session info is no longer present for anonymous 
connections.


> Remove sessions in anonymous (user auth disabled) mode in WebUI server
> ----------------------------------------------------------------------
>
>                 Key: DRILL-4354
>                 URL: https://issues.apache.org/jira/browse/DRILL-4354
>             Project: Apache Drill
>          Issue Type: Bug
>          Components:  Server
>    Affects Versions: 1.5.0
>            Reporter: Venki Korukanti
>            Assignee: Venki Korukanti
>             Fix For: 1.6.0
>
>
> Currently we open anonymous sessions when user auth disabled. These sessions 
> are cleaned up when they expire (controlled by boot config 
> {{drill.exec.http.session_max_idle_secs}}). This may lead to unnecessary 
> resource accumulation. This JIRA is to remove anonymous sessions and only 
> have sessions when user authentication is enabled.



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