Larry McQueary created KAFKA-6764:
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Summary: ConsoleConsumer behavior inconsistent when specifying
--partition --from-beginning
Key: KAFKA-6764
URL: https://issues.apache.org/jira/browse/KAFKA-6764
Project: Kafka
Issue Type: Bug
Components: consumer
Reporter: Larry McQueary
Per its usage statement, {{kafka-console-consumer.sh}} ignoresÂ
{{\-\-from-beginning}} when the specified consumer group has committed offsets,
and sets {{auto.offset.reset}} to {{latest}}. However, if {{\-\-partition}} is
also specified, {{\-\-from-beginning}} is observed in all cases, whether there
are committed offsets or not.
This happens because when {{\-\-from-beginning}} is specified, {{offsetArg}} is
set to {{OffsetRequest.EarliestTime}}. However, {{offsetArg}} is [only passed
to the
constructor|https://github.com/apache/kafka/blob/fedac0cea74feeeece529ee1c0cefd6af53ecbdd/core/src/main/scala/kafka/tools/ConsoleConsumer.scala#L76-L79]
for {{NewShinyConsumer}} when {{\-\-partition}} is also specified.
This case should either be handled consistently, or the usage statement should
be modified to indicate the actual behavior/usage.
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