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From "Nguyen Hong Phu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMQ-5468) AMQ MQTT doesn't reject remote connection after a long time
Date Tue, 02 Dec 2014 03:00:18 GMT

     [ https://issues.apache.org/jira/browse/AMQ-5468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nguyen Hong Phu updated AMQ-5468:
---------------------------------
    Description: 
Test steps:
- Using jConsole to explore JMX MBean clientConnectors (MQTT+NIO connector). 
- Using telnet client connect to MQTT+NIO port
- On jConsole: clientConnectors/mqtt+nio/remoteAddess appear a new connection with IP and
local port which connect to.
- Close telnet program
- Waiting a long time (could be more than a day) and view remoteAddess again on jConsole but
Remote IP (telnet) does not remove.

Imagine that if a human open a thousand or million connections to server, AMQ not release
connections after short time, then AMQ counld be throws the ERROR "To many open files" and
it doesn't access new connection.

In production server (ulimit max-open-files 65000), i'm using 2 thousand clients but after
2 days, many ERROR "To many open files" in activemq.log to be throws.
On jConsole, number of clientId is equals with clients, but RemoteIP contains more than 65000
IPs.

  was:
Test steps:
- Using jConsole to explore JMX MBean clientConnectors (MQTT+NIO connector). 
- Using telnet client connect to MQTT+NIO port
- On jConsole: clientConnectors/mqtt+nio/remoteAddess appear a new connection with IP and
local port which connect to.
- Close telnet program
- Waiting a long time and view remoteAddess again on jConsole but Remote IP (telnet) does
not remove.

Imagine that if a human open a thousand or million connections to server, AMQ not release
connections after short time, then AMQ counld be throws the ERROR "To many open files" and
it doesn't access new connection.

In production server (ulimit max-open-files 65000), i'm using 2 thousand clients but after
2 days, many ERROR "To many open files" in activemq.log to be throws.
On jConsole, number of clientId is equals with clients, but RemoteIP contains more than 65000
IPs.


> AMQ MQTT doesn't reject remote connection after a long time 
> ------------------------------------------------------------
>
>                 Key: AMQ-5468
>                 URL: https://issues.apache.org/jira/browse/AMQ-5468
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Connector, MQTT
>    Affects Versions: 5.9.0, 5.9.1, 5.10.0
>         Environment: Linux
>            Reporter: Nguyen Hong Phu
>             Fix For: NEEDS_REVIEW
>
>
> Test steps:
> - Using jConsole to explore JMX MBean clientConnectors (MQTT+NIO connector). 
> - Using telnet client connect to MQTT+NIO port
> - On jConsole: clientConnectors/mqtt+nio/remoteAddess appear a new connection with IP
and local port which connect to.
> - Close telnet program
> - Waiting a long time (could be more than a day) and view remoteAddess again on jConsole
but Remote IP (telnet) does not remove.
> Imagine that if a human open a thousand or million connections to server, AMQ not release
connections after short time, then AMQ counld be throws the ERROR "To many open files" and
it doesn't access new connection.
> In production server (ulimit max-open-files 65000), i'm using 2 thousand clients but
after 2 days, many ERROR "To many open files" in activemq.log to be throws.
> On jConsole, number of clientId is equals with clients, but RemoteIP contains more than
65000 IPs.



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