ContainerManager.StopContainer() does not work properly on distributed hadoop cluster environment

["Benson K. S. YEE" <be...@astri.org>]

Hi sir, 

 

I am writing an AppMaster application which is capable of
adding/removing container in runtime in Hadoop 2.0.3-alpha cluster. In
single node mode Hadoop environment, containers can be started or
stopped properly. 

However, when I tried to a few stop containers which are launched on
different machines in distributed mode setup, I got the following
problem. 

Initial setup: 
Machine1)  
Container 0: AppMaster

Container 1: Application Container

Container 2: Application Container

Container 3: Application Container


Machine2)

Container 4: Application Container

Container 5: Application Container

Container 6: Application Container

 

Machine3)

Container 7: Application Container

Container 8: Application Container

Container 9: Application Container


Stop container sequence: 
1) Stop Container 4 on machine 2.  <-- It's OK
2) Stop Container 5 on machine 2.  <-- It's OK
3) Stop Container 7 on machine 3.  <-- It does not work and cannot see
any message regarding the Container 7 in resource manager log.
Afterwards, I cannot stop any other containers at all. 

Regards,

Benson 



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