aho135 commented on code in PR #19477:
URL: https://github.com/apache/druid/pull/19477#discussion_r3327188201
##########
embedded-tests/src/test/java/org/apache/druid/testing/embedded/indexing/KafkaBoundedSupervisorTest.java:
##########
@@ -292,6 +292,47 @@ public void
test_boundedSupervisor_doesNotSilentlyCompleteWhenStaleOffsetExceeds
Assertions.assertEquals("UNHEALTHY_SUPERVISOR", status2.getState(),
"Supervisor state should be UNHEALTHY_SUPERVISOR");
}
+ @Test
+ public void test_resetSupervisorAndBackfill()
+ {
+ final String topic = IdUtils.getRandomId();
+ kafkaServer.createTopicWithPartitions(topic, 2);
+
+ // Create a streaming supervisor with concurrent locks and
withUseEarliestSequenceNumber=false
+ final KafkaSupervisorSpec supervisor = createKafkaSupervisor(kafkaServer)
+ .withContext(Map.of("useConcurrentLocks", true))
+ .withIoConfig(io -> io
+ .withKafkaInputFormat(new JsonInputFormat(null, null, null, null,
null))
+ .withUseEarliestSequenceNumber(false)
+ )
+ .build(dataSource, topic);
+
+ cluster.callApi().postSupervisor(supervisor);
+
+ waitForSupervisorDetailedState(supervisor.getId(), "RUNNING");
+
+ final int totalRecords = publish1kRecords(topic, false);
+ waitUntilPublishedRecordsAreIngested(totalRecords);
+
+ // Reset the main supervisor and spin up a backfill supervisor.
+ // Since all records are already ingested before the call, the backfill
+ // supervisor will complete immediately without ingesting anything.
+ final Map<String, Object> result =
cluster.callApi().resetSupervisorAndBackfill(supervisor.getId());
Review Comment:
Yeah, I would have like to do that but in this case there is no actual task
spun up since the Supervisor just immediately detects that no work needs to be
done
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