Christina,
The DMaaP team does have native Kafka API support included as part of
Casablanca scope per their release planning:
https://wiki.onap.org/display/DW/DMaaP+R3+-+M1+Release+Planning . We will
need DMaaP team’s help understand exactly how to integrate.
I also have a question on whether this permits mixed uses between Rest API and
Kafka API, that is: one side (either pub or sub) uses Rest API while the other
side uses Kafka, or some subscribers/publishers use Rest while other
subscribers (of the same topics) use Kafka API. One of the uses that we may
encounter is whether we can have VES collector publishes to DMaaP Rest API
while PDNA receives over native Kafka.
BR,
Lusheng Ji
ONAP DCAE
On 8/27/18, 9:07 AM, "onap-discuss@lists.onap.org on behalf of Cristina Precup
via Lists.Onap.Org" <onap-discuss@lists.onap.org on behalf of
cprecup=cisco....@lists.onap.org> wrote:
We are working on integrating PNDA applications with the DMaaP component in
ONAP:DCAE
(https://urldefense.proofpoint.com/v2/url?u=https-3A__jira.onap.org_browse_DCAEGEN2-2D371&d=DwIFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=qiKb3LQBLje9oy8MjG3MEx1ia4mIocif7RoUY8WQWV8&m=Q2fEk4UfTZzeGrEHKItW2iL3uompH99ZAQ-A-vDoBDo&s=VX-anUpTDp7yXufccIzNT8gGYCH_dWDUFslnqydT2O0&e=).
In a first phase, we would like to cross-post topics between PNDA and DMaaP
and process the streams of messages. For this, we have created a test
environment where we are posting directly to the Kafka broker underneath the
DMaaP component. We understand that the DMaaP component is meant to be used
through its REST endpoint. As pointed by Donald in the Story above, we are
concerned about the performance impact of switching to the DMaaP REST endpoint
instead of directly using a Kafka endpoint. Could you detail your view on the
matter of performance and what the preferred method would be?
Alternatively, we propose having a Kafka endpoint exposed as a NodePort or
running a Kubernetes container as a Kafka forwarder.
Looking forward to your feedback!
Best regards,
--
Cristina Precup
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