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WIP finished PscTopicUriPartitionSplitReaderTest
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@jeffxiang
jeffxiang committed Oct 9, 2024
1 parent 18cba80 commit 7fa8184
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Showing 2 changed files with 50 additions and 32 deletions.
20 changes: 11 additions & 9 deletions ...java/com/pinterest/flink/connector/psc/source/reader/PscTopicUriPartitionSplitReader.java
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Original file line number Diff line number Diff line change
Expand Up @@ -480,15 +480,17 @@ private void maybeRegisterPscConsumerMetrics(
* <p>Under this case we need to catch the {@link } and retry the operation.
*/
private <V> V retryOnWakeup(Supplier<V> consumerCall, String description) {
return consumerCall.get();
// try {
// return consumerCall.get();
// } catch (WakeupException we) {
// LOG.info(
// "Caught WakeupException while executing Kafka consumer call for {}. Will retry the consumer call.",
// description);
// return consumerCall.get();
// }
try {
return consumerCall.get();
} catch (RuntimeException we) {
if (!(we.getCause() instanceof WakeupException)) {
throw we;
}
LOG.info(
"Caught WakeupException while executing PSC consumer call for {}. Will retry the consumer call.",
description);
return consumerCall.get();
}
}

// ---------------- private helper class ------------------------
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62 changes: 39 additions & 23 deletions .../com/pinterest/flink/connector/psc/source/reader/PscTopicUriPartitionSplitReaderTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
import com.pinterest.flink.connector.psc.source.metrics.PscSourceReaderMetrics;
import com.pinterest.flink.connector.psc.source.split.PscTopicUriPartitionSplit;
import com.pinterest.flink.connector.psc.testutils.PscSourceTestEnv;
import com.pinterest.flink.streaming.connectors.psc.PscTestEnvironmentWithKafkaAsPubSub;
import com.pinterest.psc.common.TopicUriPartition;
import com.pinterest.psc.config.PscConfiguration;
import com.pinterest.psc.consumer.PscConsumerMessage;
Expand All @@ -45,12 +46,15 @@
import org.apache.flink.runtime.metrics.groups.InternalSourceReaderMetricGroup;
import org.apache.flink.runtime.metrics.groups.UnregisteredMetricGroups;

import org.apache.flink.util.ExceptionUtils;
import org.apache.kafka.clients.consumer.NoOffsetForPartitionException;
import org.hamcrest.CoreMatchers;
import org.hamcrest.MatcherAssert;
import org.hamcrest.Matchers;
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
Expand Down Expand Up @@ -83,7 +87,9 @@
public class PscTopicUriPartitionSplitReaderTest {
private static final int NUM_SUBTASKS = 3;
private static final String TOPIC1 = "topic1";
private static final String TOPIC_URI1 = PscTestEnvironmentWithKafkaAsPubSub.PSC_TEST_TOPIC_URI_PREFIX + TOPIC1;
private static final String TOPIC2 = "topic2";
private static final String TOPIC_URI2 = PscTestEnvironmentWithKafkaAsPubSub.PSC_TEST_TOPIC_URI_PREFIX + TOPIC2;

private static Map<Integer, Map<String, PscTopicUriPartitionSplit>> splitsByOwners;
private static Map<TopicUriPartition, Long> earliestOffsets;
Expand All @@ -93,13 +99,13 @@ public class PscTopicUriPartitionSplitReaderTest {
@BeforeAll
public static void setup() throws Throwable {
PscSourceTestEnv.setup();
PscSourceTestEnv.setupTopic(TOPIC1, true, true, PscSourceTestEnv::getRecordsForTopic);
PscSourceTestEnv.setupTopic(TOPIC2, true, true, PscSourceTestEnv::getRecordsForTopic);
PscSourceTestEnv.setupTopic(TOPIC_URI1, true, true, PscSourceTestEnv::getRecordsForTopic);
PscSourceTestEnv.setupTopic(TOPIC_URI2, true, true, PscSourceTestEnv::getRecordsForTopic);
splitsByOwners =
PscSourceTestEnv.getSplitsByOwners(Arrays.asList(TOPIC1, TOPIC2), NUM_SUBTASKS);
PscSourceTestEnv.getSplitsByOwners(Arrays.asList(TOPIC_URI1, TOPIC_URI2), NUM_SUBTASKS);
earliestOffsets =
PscSourceTestEnv.getEarliestOffsets(
PscSourceTestEnv.getPartitionsForTopics(Arrays.asList(TOPIC1, TOPIC2)));
PscSourceTestEnv.getPartitionsForTopics(Arrays.asList(TOPIC_URI1, TOPIC_URI2)));
}

@AfterAll
Expand All @@ -117,7 +123,7 @@ public void testHandleSplitChangesAndFetch() throws Exception {
@Test
public void testWakeUp() throws Exception {
PscTopicUriPartitionSplitReader reader = createReader();
TopicUriPartition nonExistingTopicPartition = new TopicUriPartition("NotExist", 0);
TopicUriPartition nonExistingTopicPartition = new TopicUriPartition(PscTestEnvironmentWithKafkaAsPubSub.PSC_TEST_TOPIC_URI_PREFIX + "NotExist", 0);
assignSplits(
reader,
Collections.singletonMap(
Expand Down Expand Up @@ -153,7 +159,7 @@ public void testWakeupThenAssign() throws IOException, ConfigurationException, C
// Wake the reader up then assign a new split. This assignment should not throw
// WakeupException.
reader.wakeUp();
TopicUriPartition tp = new TopicUriPartition(TOPIC1, 0);
TopicUriPartition tp = new TopicUriPartition(TOPIC_URI1, 0);
assignSplits(
reader,
Collections.singletonMap(
Expand All @@ -167,16 +173,20 @@ public void testNumBytesInCounter() throws Exception {
UnregisteredMetricGroups.createUnregisteredOperatorMetricGroup();
final Counter numBytesInCounter =
operatorMetricGroup.getIOMetricGroup().getNumBytesInCounter();
Properties props = new Properties();
props.setProperty(PscConfiguration.PSC_METRICS_FREQUENCY_MS, "100");
PscTopicUriPartitionSplitReader reader =
createReader(
new Properties(),
props,
InternalSourceReaderMetricGroup.wrap(operatorMetricGroup));
// Add a split
reader.handleSplitsChanges(
new SplitsAddition<>(
Collections.singletonList(
new PscTopicUriPartitionSplit(new TopicUriPartition(TOPIC1, 0), 0L))));
new PscTopicUriPartitionSplit(new TopicUriPartition(TOPIC_URI1, 0), 0L))));
reader.fetch();
Thread.sleep(100); // wait for metrics to be updated
reader.fetch(); // second fetch should be no-op but it is needed to ensure numBytesIn is properly updated
final long latestNumBytesIn = numBytesInCounter.getCount();
// Since it's hard to know the exact number of bytes consumed, we just check if it is
// greater than 0
Expand All @@ -185,27 +195,31 @@ public void testNumBytesInCounter() throws Exception {
reader.handleSplitsChanges(
new SplitsAddition<>(
Collections.singletonList(
new PscTopicUriPartitionSplit(new TopicUriPartition(TOPIC2, 0), 0L))));
new PscTopicUriPartitionSplit(new TopicUriPartition(TOPIC_URI2, 0), 0L))));
reader.fetch();
Thread.sleep(100); // wait for metrics to be updated
reader.fetch(); // second fetch should be no-op but it is needed to ensure numBytesIn is properly updated
// We just check if numBytesIn is increasing
assertThat(numBytesInCounter.getCount(), Matchers.greaterThan(latestNumBytesIn));
}

@ParameterizedTest
@EmptySource
@ValueSource(strings = {"_underscore.period-minus"})
@Disabled("This test is flaky due to metric reporting interval")
public void testPendingRecordsGauge(String topicSuffix) throws Throwable {
final String topic1Name = TOPIC1 + topicSuffix;
final String topic2Name = TOPIC2 + topicSuffix;
final String topic1UriStr = TOPIC_URI1 + topicSuffix;
final String topic2UriStr = TOPIC_URI2 + topicSuffix;
if (!topicSuffix.isEmpty()) {
PscSourceTestEnv.setupTopic(
topic1Name, true, true, PscSourceTestEnv::getRecordsForTopic);
topic1UriStr, true, true, PscSourceTestEnv::getRecordsForTopic);
PscSourceTestEnv.setupTopic(
topic2Name, true, true, PscSourceTestEnv::getRecordsForTopic);
topic2UriStr, true, true, PscSourceTestEnv::getRecordsForTopic);
}
MetricListener metricListener = new MetricListener();
final Properties props = new Properties();
props.setProperty(PscConfiguration.PSC_CONSUMER_POLL_MESSAGES_MAX, "1");
props.setProperty(PscConfiguration.PSC_METRICS_FREQUENCY_MS, "100");
PscTopicUriPartitionSplitReader reader =
createReader(
props,
Expand All @@ -214,7 +228,7 @@ public void testPendingRecordsGauge(String topicSuffix) throws Throwable {
reader.handleSplitsChanges(
new SplitsAddition<>(
Collections.singletonList(
new PscTopicUriPartitionSplit(new TopicUriPartition(topic1Name, 0), 0L))));
new PscTopicUriPartitionSplit(new TopicUriPartition(topic1UriStr, 0), 0L))));
// pendingRecords should have not been registered because of lazily registration
assertFalse(metricListener.getGauge(MetricNames.PENDING_RECORDS).isPresent());
// Trigger first fetch
Expand All @@ -233,7 +247,7 @@ public void testPendingRecordsGauge(String topicSuffix) throws Throwable {
reader.handleSplitsChanges(
new SplitsAddition<>(
Collections.singletonList(
new PscTopicUriPartitionSplit(new TopicUriPartition(topic2Name, 0), 0L))));
new PscTopicUriPartitionSplit(new TopicUriPartition(topic2UriStr, 0), 0L))));
// Validate pendingRecords
for (int i = 0; i < NUM_RECORDS_PER_PARTITION; i++) {
reader.fetch();
Expand All @@ -246,12 +260,12 @@ public void testAssignEmptySplit() throws Exception {
PscTopicUriPartitionSplitReader reader = createReader();
final PscTopicUriPartitionSplit normalSplit =
new PscTopicUriPartitionSplit(
new TopicUriPartition(TOPIC1, 0),
new TopicUriPartition(TOPIC_URI1, 0),
PscTopicUriPartitionSplit.EARLIEST_OFFSET,
PscTopicUriPartitionSplit.NO_STOPPING_OFFSET);
final PscTopicUriPartitionSplit emptySplit =
new PscTopicUriPartitionSplit(
new TopicUriPartition(TOPIC2, 0),
new TopicUriPartition(TOPIC_URI2, 0),
PscTopicUriPartitionSplit.LATEST_OFFSET,
PscTopicUriPartitionSplit.LATEST_OFFSET);
reader.handleSplitsChanges(new SplitsAddition<>(Arrays.asList(normalSplit, emptySplit)));
Expand All @@ -263,7 +277,7 @@ public void testAssignEmptySplit() throws Exception {
// Assign another valid split to avoid consumer.poll() blocking
final PscTopicUriPartitionSplit anotherNormalSplit =
new PscTopicUriPartitionSplit(
new TopicUriPartition(TOPIC1, 1),
new TopicUriPartition(TOPIC_URI1, 1),
PscTopicUriPartitionSplit.EARLIEST_OFFSET,
PscTopicUriPartitionSplit.NO_STOPPING_OFFSET);
reader.handleSplitsChanges(
Expand All @@ -285,19 +299,21 @@ public void testUsingCommittedOffsetsWithNoneOffsetResetStrategy() throws Config
// committed offset, and the offset reset strategy is none (Throw exception to the consumer
// if no previous offset is found for the consumer's group);
// So it is expected to throw an exception that missing the committed offset.
final ConsumerException undefinedOffsetException =
final RuntimeException undefinedOffsetException =
Assertions.assertThrows(
ConsumerException.class,
RuntimeException.class,
() ->
reader.handleSplitsChanges(
new SplitsAddition<>(
Collections.singletonList(
new PscTopicUriPartitionSplit(
new TopicUriPartition(TOPIC1, 0),
new TopicUriPartition(TOPIC_URI1, 0),
PscTopicUriPartitionSplit
.COMMITTED_OFFSET)))));
Throwable cause = ExceptionUtils.findThrowable(undefinedOffsetException, NoOffsetForPartitionException.class).get();
assertNotNull(cause);
MatcherAssert.assertThat(
undefinedOffsetException.getMessage(),
cause.getMessage(),
CoreMatchers.containsString("Undefined offset with no reset policy for partition"));
}

Expand All @@ -311,7 +327,7 @@ public void testUsingCommittedOffsetsWithEarliestOrLatestOffsetResetStrategy(
PscTopicUriPartitionSplitReader reader =
createReader(props, UnregisteredMetricsGroup.createSourceReaderMetricGroup());
// Add committed offset split
final TopicUriPartition partition = new TopicUriPartition(TOPIC1, 0);
final TopicUriPartition partition = new TopicUriPartition(TOPIC_URI1, 0);
reader.handleSplitsChanges(
new SplitsAddition<>(
Collections.singletonList(
Expand Down

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