Created question in FIWARE Q/A platform on 14-06-2016 at 09:06
Please, ANSWER this question AT https://stackoverflow.com/questions/37805708/fiware-orion-context-broker-subscription-expiration

Question:
Fiware - Orion Context Broker subscription expiration

Description:
I'm working with Orion context Broker version 1.0.0. I have an active subscription constantly receiving notifications that should be redirected to a cygnus.

My concern is that last thursday this subscription did expire. Theorically, while a subscription keeps sending notifications to it's subscribers, the expiration date is updated. Then, anyone knows why that active subscription did expire?

That's how I do the subscription registrations:

(curl 172.21.0.33:1026/v1/subscribeContext s -S --header 'Fiware-Service: xxxx' --header 'Fiware-ServicePath: /xxxx/xxxx' --header 'Content-Type: application/json' --header 'Accept: application/json' -d @ | python -mjson.tool) <<EOF
{
"entities": [

],
"attributes": [],
"reference": "http://172.21.0.23:5050/notify",
"duration": "P1M",
"notifyConditions": [

]
}
EOF

One temporal solution seems to be to establish a very large duration period. Is that neccessary?