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From "Timothy Bish (JIRA)" <>
Subject [jira] [Closed] (AMQ-2808) connection blocked when using stomp or stomp+ssl
Date Tue, 05 Jul 2011 18:43:23 GMT


Timothy Bish closed AMQ-2808.

    Resolution: Duplicate

This is in some ways related to AMQ-3393.  There is also the fact that Stomp 1.0 doesn't allow
for a keep alive so sometimes connection drops aren't detected.

Reopen if the problem persists.

> connection blocked when using stomp or stomp+ssl
> ------------------------------------------------
>                 Key: AMQ-2808
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker, Transport
>    Affects Versions: 5.3.2
>         Environment: Linux 64 bit, debian, sun java 1.6.0_20
>            Reporter: Rodrigo Sampaio Vaz
> When a client opens a connection and unexpectedly finishes the connection remains open
and established on the activemq machine, follow are the steps to reproduce:
> 1 - Start the activemq using the stomp connector or stomp+ssl 
> 2 - Use tcpkill -9 port 61612 (default por for stomp connector)
> 3 - From another machine send a telnet connection to the stomp port like telnet <stomp_server_ip>
<stomp_port>, this connection is going to be finished by tcpkill
> 4 - On the activemq machine issue a netstat -pont | grep <stomp_port>
> You should  see that a connection is still ESTABLISHED and the number of connections
grows if you start more telnets to the port. To the activemq server it thinks that the clients
are still connected even if they are dead.
> This does not happens when using stomp+nio, but since there is no ssl over stomp+nio
we loose the encryption.

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