configuration gets deleted during NSO NFVO ESC device sync-from

[momeirz]

i'm facing an issue that VNF-subscription configuration of ESC gets deleted from NSO CDB, and this happens always after devices device sync-from action

the symptoms appears as below:

admin@ncs# show running-config devices device esc-sol3 config vnf-subscriptions
devices device esc-sol3
config
vnf-subscriptions vnf-subscription lifecycle-mgmt-subscription
callbackUri https://10.10.10.150:9090/vnflcm/events
authentication authType BASIC
authentication paramsBasic password ***************
authentication paramsBasic userName vnfm
!
!
!

admin@ncs#
admin@ncs# devices device esc-sol3 sync-from
result true
admin@ncs#
admin@ncs#
admin@ncs#
admin@ncs#
admin@ncs# show running-config devices device esc-sol3 config vnf-subscriptions
% No entries found.
admin@ncs# 

any body can help identifying, what is the problem ?

[tohagber]

I'm not familiar with the esc model but one reasonable explanation for your observation is simply that config does not exist on the device hence it is removed from cdb when you do a sync-from. On sync-from what NSO does is that it first deletes everything under /devices/device{<device-to-be-synced>}/config (inside same transaction) then nso applies the config received by the device and writes the diff to CDB. So if the "vnf-subscription" was not part of the config that was received it will be deleted.