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- Repository: https://gerrit.onap.org/r/#/admin/projects/dcaegen2/collectors/hv-ves
- Changes: https://gerrit.onap.org/r/#/q/project:dcaegen2/collectors/hv-ves
Background
HV-VES -HV collector has been proposed, based on a need to process high-volumes of data generated frequently by a large number of NFs. The driving use-case is the 5G RAN, where it is expected that up to 10k NF instances report the data, per DCAE platform deployment. The network traffic generated in simulations - based on 4G BTS Real-Time PM data has shown, that GPB serialization is 2-3 times more effective, than JSON serialization utilized in VES collector.
Results have been published within ONAP presentation in Casablanca Release Developer Forum: Google Protocol Buffers versus JSON - 5G RAN use-case - comparison
The goal of the collector is to support high volume data. It uses plain TCP connections tunneled in SSL/TLS. Connections are stream-based (as opposed to request-based) and long running. Payload is binary-encoded (currently we are using Google Protocol Buffers). HV-VES uses direct connection to DMaaP's Kafka. All these decisions were made in order to support high-volume data with minimal latency.
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