chia7712 commented on code in PR #16899:
URL: https://github.com/apache/kafka/pull/16899#discussion_r1743594446
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clients/src/main/java/org/apache/kafka/clients/consumer/ConsumerConfig.java:
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@@ -727,6 +731,20 @@ private void checkGroupRemoteAssignor() {
}
}
+ @SuppressWarnings("unchecked")
+ private void checkPartitionAssigmentStrategy() {
+ List<Object> assignmentStrategies = (List<Object>)
get(PARTITION_ASSIGNMENT_STRATEGY_CONFIG);
+ if
(getString(GROUP_PROTOCOL_CONFIG).equalsIgnoreCase(GroupProtocol.CONSUMER.name()))
{
+ if (PARTITION_ASSIGNOR_DEFAULT_VALUE.size() !=
assignmentStrategies.size() ||
+ !PARTITION_ASSIGNOR_DEFAULT_VALUE.stream()
+ .allMatch(clz -> assignmentStrategies.stream()
+ .anyMatch(obj -> clz.equals(obj) ||
clz.getName().equals(obj)))
+ ) {
+ throw new ConfigException(PARTITION_ASSIGNMENT_STRATEGY_CONFIG
+ " cannot be set when " + GROUP_PROTOCOL_CONFIG + "=" +
GroupProtocol.CONSUMER.name());
+ }
+ }
+ }
+
Review Comment:
+1 to @kirktrue @lianetm that checking the user-defined values makes sense
to me.
For another, `ConsumerConfig`'s constructor will log all configs, so it
would be nice to set the config `partition.assignment.strategy` to null when
the protocol is `CONSUMER`. This behavior is similar to
`maybeOverrideEnableAutoCommit` which can avoid printing "weird" consumer
configs in log file.
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