Yes, pio deploy runs a few processes (usually 2)
Just kill all of them :) usually every of them falls after killing at least one
> 14 дек. 2017 г., в 18:42, Noelia Osés Fernández <no...@vicomtech.org> 
> написал(а):
> 
> 
> Hi Phong,
> 
> I have tried your suggestion but I get a few different hits.
> 
> noelia
> 
> On 14 December 2017 at 16:28, VI, Tran Tan Phong <tpvit...@prosodie.com 
> <mailto:tpvit...@prosodie.com>> wrote:
> Hi Noelia,
> 
>  
> 
> Why don’t you try to identify the process by “ps -ef |grep 8000” then simply 
> kill it?
> 
>  
> 
> Phong
> 
>  
> 
> De : Noelia Osés Fernández [mailto:no...@vicomtech.org 
> <mailto:no...@vicomtech.org>] 
> Envoyé : jeudi 14 décembre 2017 15:56
> À : u...@predictionio.incubator.apache.org 
> <mailto:u...@predictionio.incubator.apache.org>
> Objet : Error: "unable to undeploy"
> 
>  
> 
> Hi,
> 
> The first time after reboot that I train and deploy my PIO app everything 
> works well. However, if I then retrain and deploy again, I get the following 
> error:
> 
> 
> [INFO] [MasterActor] Undeploying any existing engine instance at 
> http://0.0.0.0:8000 <http://0.0.0.0:8000/>
> [ERROR] [MasterActor] Another process might be occupying 0.0.0.0:8000 
> <http://0.0.0.0:8000/>. Unable to undeploy.
> [ERROR] [TcpListener] Bind failed for TCP channel on endpoint [/0.0.0.0:8000 
> <http://0.0.0.0:8000/>]
> [WARN] [HttpListener] Bind to /0.0.0.0:8000 <http://0.0.0.0:8000/> failed
> [ERROR] [MasterActor] Bind failed. Retrying... (2 more trial(s))
> [WARN] [HttpListener] Bind to /0.0.0.0:8000 <http://0.0.0.0:8000/> failed
> [ERROR] [TcpListener] Bind failed for TCP channel on endpoint [/0.0.0.0:8000 
> <http://0.0.0.0:8000/>]
> [ERROR] [MasterActor] Bind failed. Retrying... (1 more trial(s))
> [ERROR] [TcpListener] Bind failed for TCP channel on endpoint [/0.0.0.0:8000 
> <http://0.0.0.0:8000/>]
> [WARN] [HttpListener] Bind to /0.0.0.0:8000 <http://0.0.0.0:8000/> failed
> [ERROR] [MasterActor] Bind failed. Retrying... (0 more trial(s))
> [ERROR] [TcpListener] Bind failed for TCP channel on endpoint [/0.0.0.0:8000 
> <http://0.0.0.0:8000/>]
> [WARN] [HttpListener] Bind to /0.0.0.0:8000 <http://0.0.0.0:8000/> failed
> [ERROR] [MasterActor] Bind failed. Shutting down.
> 
>  
> 
> I thought it was possible to retrain an app that was running and then deploy 
> again.
> 
> Is this not possible?
> 
>  
> 
> How can I kill the running instance?
> 
> I've tried the trick in handmade's integration test but it doesn't work:
> 
>  
> 
> deploy_pid=`jps -lm | grep "onsole deploy" | cut -f 1 -d ' '`
> echo "Killing the deployed test PredictionServer"
> kill "$deploy_pid"
> 
>  
> 
> I still get the same error after doing this.
> 
>  
> 
> Any help is much appreciated.
> 
> Best regards,
> 
> Noelia
> 
> 
> 
> 
> 
> 
> 
> 
> 

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