Github user brkyvz commented on a diff in the pull request:
https://github.com/apache/spark/pull/20698#discussion_r171732183
--- Diff:
external/kafka-0-10-sql/src/main/scala/org/apache/spark/sql/kafka010/KafkaMicroBatchReader.scala
---
@@ -199,10 +179,10 @@ private[kafka010] class KafkaMicroBatchReader(
// Make sure that `KafkaConsumer.poll` is only called in
StreamExecutionThread.
// Otherwise, interrupting a thread while running `KafkaConsumer.poll`
may hang forever
// (KAFKA-1894).
- assert(Thread.currentThread().isInstanceOf[UninterruptibleThread])
+ require(Thread.currentThread().isInstanceOf[UninterruptibleThread])
--- End diff --
Assertions can be turned off
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