Github user ijuma commented on the issue:
https://github.com/apache/spark/pull/21488
Yeah, the Java client libraries have been evolved in a compatible manner
for the most part since 0.10.0. The set of broker versions supported by 0.10.0
and 2.0.0 is exactly the same.
The consumer/producer API has been enriched (transactions, idempotent
producer, offsetsForTimes), but the existing methods have been kept. A small
number of deprecated, but rarely used methods have been removed (not in
KafkaProducer or KafkaConsumer though):
https://github.com/apache/kafka/commit/a4c292173618e22b3f99ab8615c6b585c7688a40
In 0.10.1, a heartbeat thread was added to the Java consumer:
https://cwiki.apache.org/confluence/display/KAFKA/KIP-62%3A+Allow+consumer+to+send+heartbeats+from+a+background+thread
This is helpful to users who could not call `poll` often enough, but the
default configs should be fine for most cases.
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