Some answers below.
Others will need to answer the rest.
-Dom
From: [email protected] [mailto:[email protected]] On
Behalf Of Prakash via Lists.Onap.Org
Sent: Tuesday, November 20, 2018 4:49 AM
To: [email protected]
Subject: [onap-discuss] [DMAAP] Kafka
Hello Team,
As i could see a demo video on MR but i just want to know how DR works
internally and looking for more documentation. Let me know where i can find.
[dgl: see
https://onap.readthedocs.io/en/latest/submodules/dmaap/datarouter.git/docs/index.html]
Also kindly clarify me on the below
1. Is kafka used in DR as well?
[dgl: No kafka in DR. DR uses local file system to store client date until its
delivered. It also uses mariadb to store provisioning data]
2. What is the exact use of DMD and Bus Controller? Need an example use case.
[dgl: example use cases for Bus Controller:
a) Application X publishes to DR and creates Feed X via Bus Controller /feeds
API. Analytic Function AF can subscribe to Feed X via Bus Controller /dr_subs
API. Bus Controller provisions DR accordingly.
b) Designer specifies authenticated topic T. Topic is provisioned using Bus
Controller /topics API. Application P can add itself as a publisher to topic T
using the Bus Controller /mr_clients API. Application S can add itself as a
subscriber to topic T using the same API. Bus Controller will create the topic
T on MR, and also create and grant the AAF perms associated with the client
actions.
3. Is it possible to replace other models instead of kafka in MR and use it?
[Sunil?]
4. Which component of DMAAP does the Data translation and API translation?
[dgl: no DMaaP component does data translation at this time. The DR team is
considering a feature in Dublin that will offer some degree of provisioning
coordination for a registered data translation service (e.g. reformat a data
file). Please provide more info on a use case you have in mind.
--
Regards,
Prakas P,
Network and Technology IT,
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