soarez commented on code in PR #15999:
URL: https://github.com/apache/kafka/pull/15999#discussion_r1619486214
##########
connect/mirror/src/main/java/org/apache/kafka/connect/mirror/MirrorSourceConnector.java:
##########
@@ -73,6 +73,8 @@
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+import static
org.apache.kafka.connect.mirror.MirrorConnectorConfig.OFFSET_SYNCS_TOPIC_CONFIG_PREFIX;
+import static
org.apache.kafka.connect.mirror.MirrorSourceConfig.OFFSET_SYNCS_CLIENT_ROLE_PREFIX;
Review Comment:
This constant is declared in MirrorConnectorConfig, so the static import to
refer to that class directly
##########
connect/mirror/src/test/java/org/apache/kafka/connect/mirror/MirrorCheckpointConnectorTest.java:
##########
@@ -50,6 +50,40 @@ public class MirrorCheckpointConnectorTest {
private static final String CONSUMER_GROUP = "consumer-group-1";
private static final Map<String, ?> SOURCE_OFFSET =
MirrorUtils.wrapOffset(0);
+ @Test
+ public void testEmitCheckpointsAndSyncGroupOffsetsBothDisabled() {
+ // disable the checkpoint emission
+ MirrorCheckpointConfig config = new MirrorCheckpointConfig(
+ makeProps("emit.checkpoints.enabled", "false",
+ "sync.group.offsets.enabled", "false"));
+
+ Set<String> knownConsumerGroups = new HashSet<>();
+ knownConsumerGroups.add(CONSUMER_GROUP);
+ // MirrorCheckpointConnector as minimum to run taskConfig()
+ MirrorCheckpointConnector connector = new
MirrorCheckpointConnector(knownConsumerGroups,
+ config);
+ List<Map<String, String>> output = connector.taskConfigs(1);
+ // expect no task will be created
+ assertEquals(0, output.size(), "MirrorCheckpointConnector not
disabled");
+ }
+
+ @Test
+ public void testEmitOffsetSyncsDisabled() {
+ // disable the checkpoint emission
+ MirrorCheckpointConfig config = new MirrorCheckpointConfig(
+ makeProps("emit.checkpoints.enabled", "false",
+ MirrorConnectorConfig.EMIT_OFFSET_SYNCS_ENABLED,
"false"));
+
+ Set<String> knownConsumerGroups = new HashSet<>();
+ knownConsumerGroups.add(CONSUMER_GROUP);
+ // MirrorCheckpointConnector as minimum to run taskConfig()
+ MirrorCheckpointConnector connector = new
MirrorCheckpointConnector(knownConsumerGroups,
+ config);
+ List<Map<String, String>> output = connector.taskConfigs(1);
+ // expect no task will be created
+ assertEquals(0, output.size(), "MirrorCheckpointConnector not
disabled");
Review Comment:
Should this be extracted into a common method? e.g.
`assertMirrorCheckpointConnectorDisabled(config)`
##########
connect/mirror/src/test/java/org/apache/kafka/connect/mirror/MirrorSourceTaskTest.java:
##########
@@ -437,6 +437,55 @@ public void testSendSyncEvent() {
verify(producer, times(5)).send(any(), any());
}
+ @Test
+ public void testDisableEmitOffsetSync() {
+ byte[] recordKey = "key".getBytes();
+ byte[] recordValue = "value".getBytes();
+ int maxOffsetLag = 50;
+ int recordPartition = 0;
+ int recordOffset = 0;
+ int metadataOffset = 100;
+ String topicName = "topic";
+ String sourceClusterName = "sourceCluster";
+
+ RecordHeaders headers = new RecordHeaders();
+ ReplicationPolicy replicationPolicy = new DefaultReplicationPolicy();
+
+ @SuppressWarnings("unchecked")
+ KafkaConsumer<byte[], byte[]> consumer = mock(KafkaConsumer.class);
+ @SuppressWarnings("unchecked")
+ KafkaProducer<byte[], byte[]> producer = mock(KafkaProducer.class);
+ MirrorSourceMetrics metrics = mock(MirrorSourceMetrics.class);
+ Semaphore outstandingOffsetSyncs = new Semaphore(1);
+ PartitionState partitionState = new PartitionState(maxOffsetLag);
+ Map<TopicPartition, PartitionState> partitionStates = new HashMap<>();
+
+ MirrorSourceTask mirrorSourceTask = new MirrorSourceTask(consumer,
metrics, sourceClusterName,
+ replicationPolicy, maxOffsetLag, producer,
outstandingOffsetSyncs, partitionStates, topicName, false);
+
+ SourceRecord sourceRecord = mirrorSourceTask.convertRecord(new
ConsumerRecord<>(topicName, recordPartition,
+ recordOffset, System.currentTimeMillis(),
TimestampType.CREATE_TIME, recordKey.length,
+ recordValue.length, recordKey, recordValue, headers,
Optional.empty()));
+
+ TopicPartition sourceTopicPartition =
MirrorUtils.unwrapPartition(sourceRecord.sourcePartition());
+ partitionStates.put(sourceTopicPartition, partitionState);
+ RecordMetadata recordMetadata = new
RecordMetadata(sourceTopicPartition, metadataOffset, 0, 0, 0, recordPartition);
+
+ ArgumentCaptor<Callback> producerCallback =
ArgumentCaptor.forClass(Callback.class);
+ when(producer.send(any(),
producerCallback.capture())).thenAnswer(mockInvocation -> {
+ producerCallback.getValue().onCompletion(null, null);
+ return null;
+ });
+
+ mirrorSourceTask.commitRecord(sourceRecord, recordMetadata);
+ // No more syncs should take place; we've disabled emit offset-syncs
+ verifyNoInteractions(producer);
Review Comment:
We check for no interactions a couple of lines below, so this check seems
redundant.
##########
connect/mirror/src/main/java/org/apache/kafka/connect/mirror/MirrorSourceConnector.java:
##########
@@ -257,6 +261,21 @@ public org.apache.kafka.common.config.Config
validate(Map<String, String> props)
);
}
}
+ boolean offsetSyncsConfigured = configValues.stream()
+ .anyMatch(conf ->
conf.name().startsWith(OFFSET_SYNCS_CLIENT_ROLE_PREFIX) ||
conf.name().startsWith(OFFSET_SYNCS_TOPIC_CONFIG_PREFIX));
+
+ if (!new MirrorSourceConfig(props).emitOffsetSyncEnabled() &&
offsetSyncsConfigured) {
+ ConfigValue emitOffsetSyncs = configValues.stream().filter(prop ->
MirrorConnectorConfig.EMIT_OFFSET_SYNCS_ENABLED.equals(prop.name()))
+ .findAny()
+ .orElseGet(() -> {
+ ConfigValue result = new
ConfigValue(MirrorConnectorConfig.EMIT_OFFSET_SYNCS_ENABLED);
Review Comment:
Since we're already importing some constants in `MirrorConnectorConfig`,
maybe we should do the same for this one too?
##########
connect/mirror/src/test/java/org/apache/kafka/connect/mirror/MirrorSourceTaskTest.java:
##########
@@ -437,6 +437,55 @@ public void testSendSyncEvent() {
verify(producer, times(5)).send(any(), any());
}
+ @Test
+ public void testDisableEmitOffsetSync() {
+ byte[] recordKey = "key".getBytes();
+ byte[] recordValue = "value".getBytes();
+ int maxOffsetLag = 50;
+ int recordPartition = 0;
+ int recordOffset = 0;
+ int metadataOffset = 100;
+ String topicName = "topic";
+ String sourceClusterName = "sourceCluster";
+
+ RecordHeaders headers = new RecordHeaders();
+ ReplicationPolicy replicationPolicy = new DefaultReplicationPolicy();
+
+ @SuppressWarnings("unchecked")
+ KafkaConsumer<byte[], byte[]> consumer = mock(KafkaConsumer.class);
+ @SuppressWarnings("unchecked")
+ KafkaProducer<byte[], byte[]> producer = mock(KafkaProducer.class);
+ MirrorSourceMetrics metrics = mock(MirrorSourceMetrics.class);
+ Semaphore outstandingOffsetSyncs = new Semaphore(1);
+ PartitionState partitionState = new PartitionState(maxOffsetLag);
+ Map<TopicPartition, PartitionState> partitionStates = new HashMap<>();
+
+ MirrorSourceTask mirrorSourceTask = new MirrorSourceTask(consumer,
metrics, sourceClusterName,
+ replicationPolicy, maxOffsetLag, producer,
outstandingOffsetSyncs, partitionStates, topicName, false);
+
+ SourceRecord sourceRecord = mirrorSourceTask.convertRecord(new
ConsumerRecord<>(topicName, recordPartition,
+ recordOffset, System.currentTimeMillis(),
TimestampType.CREATE_TIME, recordKey.length,
+ recordValue.length, recordKey, recordValue, headers,
Optional.empty()));
+
+ TopicPartition sourceTopicPartition =
MirrorUtils.unwrapPartition(sourceRecord.sourcePartition());
+ partitionStates.put(sourceTopicPartition, partitionState);
+ RecordMetadata recordMetadata = new
RecordMetadata(sourceTopicPartition, metadataOffset, 0, 0, 0, recordPartition);
+
+ ArgumentCaptor<Callback> producerCallback =
ArgumentCaptor.forClass(Callback.class);
+ when(producer.send(any(),
producerCallback.capture())).thenAnswer(mockInvocation -> {
+ producerCallback.getValue().onCompletion(null, null);
+ return null;
+ });
+
+ mirrorSourceTask.commitRecord(sourceRecord, recordMetadata);
Review Comment:
Since this test suite is for `MirrorSourceTask`, and the offset sync is now
handled by `OffsetSyncWriter`, perhaps that class should have its own test
suite, and some of the logic being tested in `testSendSyncEvent` should move
there?
If the test constructor for `MirrorSourceTask` accepts `OffsetSyncWriter
offsetSyncWriter` instead of `boolean emitOffsetSyncEnabled`, we could mock the
writer in the tests in this suite, and verify interactions against the writer,
not against the producer.
##########
connect/mirror/src/test/java/org/apache/kafka/connect/mirror/MirrorSourceTaskTest.java:
##########
@@ -437,6 +437,55 @@ public void testSendSyncEvent() {
verify(producer, times(5)).send(any(), any());
}
+ @Test
+ public void testDisableEmitOffsetSync() {
+ byte[] recordKey = "key".getBytes();
+ byte[] recordValue = "value".getBytes();
+ int maxOffsetLag = 50;
+ int recordPartition = 0;
+ int recordOffset = 0;
+ int metadataOffset = 100;
+ String topicName = "topic";
+ String sourceClusterName = "sourceCluster";
+
+ RecordHeaders headers = new RecordHeaders();
+ ReplicationPolicy replicationPolicy = new DefaultReplicationPolicy();
+
+ @SuppressWarnings("unchecked")
+ KafkaConsumer<byte[], byte[]> consumer = mock(KafkaConsumer.class);
+ @SuppressWarnings("unchecked")
+ KafkaProducer<byte[], byte[]> producer = mock(KafkaProducer.class);
+ MirrorSourceMetrics metrics = mock(MirrorSourceMetrics.class);
+ Semaphore outstandingOffsetSyncs = new Semaphore(1);
+ PartitionState partitionState = new PartitionState(maxOffsetLag);
+ Map<TopicPartition, PartitionState> partitionStates = new HashMap<>();
+
+ MirrorSourceTask mirrorSourceTask = new MirrorSourceTask(consumer,
metrics, sourceClusterName,
+ replicationPolicy, maxOffsetLag, producer,
outstandingOffsetSyncs, partitionStates, topicName, false);
+
+ SourceRecord sourceRecord = mirrorSourceTask.convertRecord(new
ConsumerRecord<>(topicName, recordPartition,
+ recordOffset, System.currentTimeMillis(),
TimestampType.CREATE_TIME, recordKey.length,
+ recordValue.length, recordKey, recordValue, headers,
Optional.empty()));
+
+ TopicPartition sourceTopicPartition =
MirrorUtils.unwrapPartition(sourceRecord.sourcePartition());
+ partitionStates.put(sourceTopicPartition, partitionState);
+ RecordMetadata recordMetadata = new
RecordMetadata(sourceTopicPartition, metadataOffset, 0, 0, 0, recordPartition);
+
+ ArgumentCaptor<Callback> producerCallback =
ArgumentCaptor.forClass(Callback.class);
+ when(producer.send(any(),
producerCallback.capture())).thenAnswer(mockInvocation -> {
+ producerCallback.getValue().onCompletion(null, null);
+ return null;
+ });
+
+ mirrorSourceTask.commitRecord(sourceRecord, recordMetadata);
Review Comment:
There's a lot in common here with `testSendSyncEvent` and the setup in the
test is a bit involved. Do you think we could make this easier to read by
extracting a common part of the test setup?
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