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https://issues.apache.org/jira/browse/ARTEMIS-3818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17533881#comment-17533881
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Justin Bertram commented on ARTEMIS-3818:
-----------------------------------------

This message is just indicating that a client connected to a particular 
acceptor (i.e. {{mqtts}} in this case) and didn't finish its protocol handshake 
within the allotted time (i.e. 10 seconds). This could be caused by all sorts 
of things, e.g.:
* A network scanning tool that simply probes the port where the acceptor is 
listening.
* A crashing client.
* A network problem that is interrupting normal communication with a client.

The message provides you with the IP address of the remote client. I recommend 
you investigate what/who that client is to determine why they are not 
completing their protocol handshake. 

> AMQ224088: Timeout (10 seconds) on acceptor "mqtts" during protocol handshake 
> with /xx.xxx.xxx.xx:19493 has occurred.
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: ARTEMIS-3818
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-3818
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>    Affects Versions: 2.15.0
>            Reporter: Supriya Narute
>            Priority: Blocker
>             Fix For: 2.15.0
>
>
> We are facing sudden issue with Artemis service, Service is stopping 
> frequently. When we verified logs we encountered below issue. 
> {noformat}
> AMQ224088: Timeout (10 seconds) on acceptor "mqtts" during protocol handshake 
> with /xx.xxx.xxx.xx:19493 has occurred.{noformat}
> Could you please check this on priority and try help out to get this issue 
> fixed.



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