Kafka Java heap space - OutOfMemoryError

Just added Kafka event forwad url & topic. When restarting traccar, it yields Java heap space - OutOfMemoryError. Is this something expected? If so, what's the expected size from traccar kafka producer?

Here are the logs:

2023-05-25 17:18:17  INFO: [Producer clientId=producer-1] Instantiated an idempotent producer.
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2023-05-25 17:18:17  INFO: Kafka version: 3.4.0
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2023-05-25 17:18:17  INFO: Kafka commitId: 2e1947d240607d53
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2023-05-25 17:18:17  INFO: Kafka startTimeMs: 1685035097803
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2023-05-25 17:18:18  INFO: jetty-10.0.15; built: 2023-04-11T17:25:14.480Z; git: 68017dbd00236bb7e187330d7585a059610f661d; jvm 11.0.18+10-alpine-r0
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2023-05-25 17:18:18  INFO: Started o.t.w.@382faf51{/,null,AVAILABLE}
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2023-05-25 17:18:18  INFO: Session workerName=node0
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2023-05-25 17:18:18 ERROR: Uncaught exception in thread 'kafka-producer-network-thread | producer-1': - Java heap space - OutOfMemoryError (...)

It sounds like you should add more memory for Traccar.

Well that's what I guessed. 3Gi wasn't enough to get rid of the error. Hence my asking for the correct threshold, if any.
Perpjhaps the error isn't at all related to heap, and hides another. I'd explore this too

Small update on this. The error wasn't due to memory. SSL was the root cause, as depicted in these Kafka tickets