try

new_session:setAutoHangup(0);

new_session:destroy();

before you transfer it.

and 

new_session = undefined;

after you transfer it.

The sessions are tied to the garbage collector so until the script frees the script version of the session the core can't free the real version.

the  :destroy() method detaches the 2 so the channel can hangup on its own and you only save the shell of the wrapper in your GC.

On Wed, Apr 10, 2013 at 2:34 PM, Johny Kadarisman Kwan <jkr888@gmail.com> wrote:

I have lua 'background' script that wake up every few seconds, and check to perform specific task, one of it to established call.

Calls are then initiated then transfer to some extension in dialplan. The scripts has been running and works as expected.

But after session ended(hangup), channels is not released and can be seen using cli "show channels". and trying to kill such channel result in "-ERR No Such Channel!"

This seems being reported before, but I can't seems to find any resolution.

Following simple script could replicate the issues : 

freeswitch> luarun SimpleDialer.lua

=================== SimpleDialer.lua

local threadName = "SimpleDialer"

while true do                             

                                                                                                       

        freeswitch.consoleLog("info", threadName.." ticking\n")                                                                                                    

        -- task run here

        local new_session = freeswitch.Session('sofia/gateway/vox/+15088888888')

        new_session:transfer("echo", "XML", "default")

        freeswitch.msleep(60000)

end

============= dialplan entry

    <extension name="echo">

      <condition field="destination_number" expression="^echo$">

              <action application="echo" data=""/>

      </condition>

    </extension>        

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_________________________________________________________________________
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http://www.freeswitchsolutions.com

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