Any comment ? I am going to document it today if there are no objection.

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** [tickets:#807] AMF returns TRYAGAIN for saAmfRegister**

**Status:** fixed
**Milestone:** 4.3.3
**Created:** Thu Mar 06, 2014 03:52 PM UTC by Hans Feldt
**Last Updated:** Fri Jun 13, 2014 08:36 AM UTC
**Owner:** Nagendra Kumar

Use case: node lock followed by node lock instantiation, During node lock a 
component causes an SUfailover followed by repair of the component which means 
instantiation.

So we have a component in state INSTANTIATING when the SU terminate request 
comes. AMF then (silently) escalates this to execute cleanup of the already 
instantiating component and changes its state to TERMINATING. Due to timing the 
cleanup script does not find any process to kill and returns 0. At the same 
time the instantiate script starts a process that calls saAmfRegister which 
returns TRYAGAIN because the component is in TERMINATING state.

Suggestions:
- AMF should probably return BAD-OPERATION in this case (is there any valid 
case where it should return TRYAGAIN?)
- the reason for escalating to cleanup should be logged

Finally, should AMF really start a second CLC CLI script while it knows one is 
already running? This implies that the cleanup script must be able to kill the 
instantiate script which is not stated in the specification besides I haven't 
any such script. So maybe AMF should kill the child process executing the 
instantiate script before it starts cleanup. This is a change in "core" since 
there is no interface to do this.




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