I agree with Mathi. TRY_AGAIN when no fault has happened otherwise some error 
code e.g. BAD OP.


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** [tickets:#1169] amfd: SI_SWAP operation accepted but will always fail when 
cold sync not finished**

**Status:** accepted
**Milestone:** 4.5.1
**Created:** Tue Oct 14, 2014 12:43 PM UTC by Ingvar Bergström
**Last Updated:** Wed Jan 07, 2015 01:47 PM UTC
**Owner:** Nagendra Kumar

If a SI Swap operation is issued to SI "safSi=SC-2N,safApp=OpenSAF" before cold 
sync of standby node is finished, the swap will alwayas fail.
-The swap is started and applications are taken into operation on the new 
active node.
-After a while AMF detect that coldsync is not completed and will try to swap 
back again.
-The return code from the admin operation is SA_AIS_OK.

To my opinion the SI Swap operation shall not start until coldsync is finished 
and return TRY_AGAIN while waiting.

Some observations:
-No check is made for coldsync finished in method SG_2N::si_swap (sg_2n_fsm.cc)
-the control block AVD_CL_CB variable "stby_sync_state" is initially set to 
AVD_STBY_IN_SYNC already at start, so this can not be used to test for coldsync 
in this case.
-all return codes except SA_AIS_OK are converted to SA_AIS_ERR_BAD_OPERATION in 
function si_admin_op_cb for SWAP operation (si.cc).


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