mod-pubsub performance testing
In scope of the ticket (https://folio-org.atlassian.net/browse/MODPUBSUB-64) 2 new sample modules were created locally and registered as 'publisher' and 'subscriber' in the 'mod-pubsub'.
A specific number of events were sent from publisher to subscriber without any timeouts between publishing event.
You can see the schema of this flow below:
Testing was performed locally on 'folio/snapshot-backend-core' vagrant box with specific resources parameters: CPUS=8; Memory=25GB
| Memory | Total count | Payload size | Request time (from publisher module to pub-sub) | Result (Subscriber`s received events number) |
|---|---|---|---|---|---|
mod-pubsub | 682MB | 300 | 12 KB | First req: 1006ms Last req: 2931ms | 300 |
Okapi | 768MB | 500 | 12 KB | First req: 1452ms Last req: 5873ms | 416 |
Kafka |
| 700 | 12 KB | First req: 9081ms Last req: 14019ms | 552 |
As a result, in case the number of events is more than 500, some events published by the first module were not received by another. This is an issue for further investigation: https://folio-org.atlassian.net/browse/MODPUBSUB-68