mjsax commented on code in PR #21074:
URL: https://github.com/apache/kafka/pull/21074#discussion_r2587130213


##########
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();
+                    } 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.");
+                    }
+                }
+                return;
+            } catch (ExecutionException ee) {
+                // If the group ID is not found, this is not an error case
+                if (ee.getCause() instanceof GroupIdNotFoundException) {
+                    return;

Review Comment:
   Would `break` be cleaner? Atm, there is no code after the loop, to no 
difference, but if we add code after the loop in the future, using `return` 
here might skip this code accidentally?



-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]

Reply via email to