[jboss-jira] [JBoss JIRA] (WFLY-7457) UT005013 causes OutOfMemoryError

[Stuart Douglas (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-7457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13326032#comment-13326032 ] 

Stuart Douglas commented on WFLY-7457:
--------------------------------------

Is it possible that the F5 was not actually dropping the TCP connection properly? If no timeout was configured then Wildfly may run out of memory as it will keep the data structures associated with those connections around forever.

> UT005013 causes OutOfMemoryError
> --------------------------------
>
>                 Key: WFLY-7457
>                 URL: https://issues.jboss.org/browse/WFLY-7457
>             Project: WildFly
>          Issue Type: Bug
>          Components: Web (Undertow)
>    Affects Versions: 10.1.0.Final
>            Reporter: Steve Vater
>            Assignee: Stuart Douglas
>              Labels: new_and_noteworthy
>
> There's some F5 WAF within the network where our WildFly is running. The WAF sends multiple Keep Alive-Requests to our WAF via TCP, but without sending "close_notify" after the communication has ended. 
> Undertow throws UT005013, which is correct, but this causes the JVM to run out of Memory. The keepalive is sent 12 times per minute (every 5 seconds) to our WildFly.
> We already installed an update of Undertow (1.4.3); This didn't help.



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