apoorvmittal10 commented on code in PR #14843:
URL: https://github.com/apache/kafka/pull/14843#discussion_r1410198452
##########
clients/src/main/java/org/apache/kafka/clients/admin/KafkaAdminClient.java:
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@@ -4387,7 +4398,52 @@ public FenceProducersResult
fenceProducers(Collection<String> transactionalIds,
@Override
public Uuid clientInstanceId(Duration timeout) {
- throw new UnsupportedOperationException();
+ if (timeout.isNegative()) {
+ throw new IllegalArgumentException("The timeout cannot be
negative.");
+ }
+
+ if (!clientTelemetryEnabled) {
+ throw new IllegalStateException("Telemetry is not enabled. Set
config `enable.metrics.push` to `true`.");
+ }
+
+ if (clientInstanceId != null) {
+ return clientInstanceId;
+ }
+
+ final long now = time.milliseconds();
+ final KafkaFutureImpl<Uuid> future = new KafkaFutureImpl<>();
+ runnable.call(new Call("getTelemetrySubscriptions",
calcDeadlineMs(now, (int) timeout.toMillis()),
+ new LeastLoadedNodeProvider()) {
+
+ @Override
+ GetTelemetrySubscriptionsRequest.Builder createRequest(int
timeoutMs) {
+ return new GetTelemetrySubscriptionsRequest.Builder(new
GetTelemetrySubscriptionsRequestData(), true);
+ }
+
+ @Override
+ void handleResponse(AbstractResponse abstractResponse) {
+ GetTelemetrySubscriptionsResponse response =
(GetTelemetrySubscriptionsResponse) abstractResponse;
+ if (response.error() != Errors.NONE) {
+ future.completeExceptionally(response.error().exception());
+ } else {
+ future.complete(response.data().clientInstanceId());
+ }
+ }
+
+ @Override
+ void handleFailure(Throwable throwable) {
+ future.completeExceptionally(throwable);
+ }
+ }, now);
+
+ try {
+ clientInstanceId = future.get();
+ } catch (Exception e) {
+ log.error("Error occurred while fetching client instance id", e);
+ throw new KafkaException("Error occurred while fetching client
instance id", e);
+ }
Review Comment:
The other 2 classes loads the subscription as part of
GetTelemetrySubscriptions API call and as well runs the continuous poll loop to
see any change in state to re-fetch subscription, which can work with
signalling of loaded subscription.
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