Nikita-Shupletsov commented on code in PR #21074:
URL: https://github.com/apache/kafka/pull/21074#discussion_r2587872082
##########
tools/src/main/java/org/apache/kafka/tools/StreamsResetter.java:
##########
@@ -177,30 +179,42 @@ public int execute(final String[] args, final Properties
config) {
}
}
- private void maybeDeleteActiveConsumers(final String groupId,
- final Admin adminClient,
- final StreamsResetterOptions
options)
+ // visible for testing
+ void maybeDeleteActiveConsumers(final String groupId,
+ final Admin adminClient,
+ final boolean force)
throws ExecutionException, InterruptedException {
- final DescribeConsumerGroupsResult describeResult =
adminClient.describeConsumerGroups(
- Set.of(groupId),
- new DescribeConsumerGroupsOptions().timeoutMs(10 * 1000));
- try {
- final List<MemberDescription> members =
- new
ArrayList<>(describeResult.describedGroups().get(groupId).get().members());
- if (!members.isEmpty()) {
- if (options.hasForce()) {
- System.out.println("Force deleting all active members in
the group: " + groupId);
- adminClient.removeMembersFromConsumerGroup(groupId, new
RemoveMembersFromConsumerGroupOptions()).all().get();
- } else {
- throw new IllegalStateException("Consumer group '" +
groupId + "' is still active "
- + "and has following members: " + members + ". "
- + "Make sure to stop all running application instances
before running the reset tool."
- + " You can use option '--force' to remove active
members from the group.");
+ int retries = 0;
+ while (true) {
+ final DescribeConsumerGroupsResult describeResult =
adminClient.describeConsumerGroups(
+ Set.of(groupId),
+ new DescribeConsumerGroupsOptions().timeoutMs(10 * 1000));
+ try {
+ final List<MemberDescription> members =
+ new
ArrayList<>(describeResult.describedGroups().get(groupId).get().members());
+ if (!members.isEmpty()) {
+ if (force) {
+ System.out.println("Force deleting all active members
in the group: " + groupId);
+ adminClient.removeMembersFromConsumerGroup(groupId,
new RemoveMembersFromConsumerGroupOptions()).all().get();
Review Comment:
I was considering it, but if we look at the implementation:
https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/clients/admin/KafkaAdminClient.java#L4175-L4178
it passes groupInstanceId if it exists or memberId if it doesn't.
there is no way to replicate this behavior with
https://github.com/apache/kafka/blob/trunk/clients/src/main/java/org/apache/kafka/clients/admin/MemberToRemove.java,
as it doesn't accept memberId, only groupInstanceId. and it's a public class,
so changing it would require a KIP, afaik
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