mirror of https://github.com/apache/kafka.git
KAFKA-19730: StreamsGroupDescribe result is missing topology (#20574)
When toology not configured. In the streams group heartbeat, we validate the topology set for the group against the topic metadata, to generate the "configured topology" which has a specific number of partitions for each topic. In streams group describe, we use the configured topology to expose this information to the user. However, we leave the topology information as null in the streams group describe response, if the topology is not configured. This triggers an IllegalStateException in the admin client implementation. Instead, we should expose the unconfigured topology when the configured topology is not available, which will still expose useful information. Reviewers: Matthias J. Sax <matthias@confluent.io> --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
Lucas Brutschy
GitHub
parent
ac495f9ef7
commit
fb0518c34e
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@ -4463,6 +4463,47 @@ class PlaintextAdminIntegrationTest extends BaseAdminIntegrationTest {
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}
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}
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@Test
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def testDescribeStreamsGroupsNotReady(): Unit = {
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val streamsGroupId = "stream_group_id"
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val testTopicName = "test_topic"
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val config = createConfig
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client = Admin.create(config)
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val streams = createStreamsGroup(
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inputTopic = testTopicName,
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streamsGroupId = streamsGroupId
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)
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streams.poll(JDuration.ofMillis(500L))
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try {
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TestUtils.waitUntilTrue(() => {
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val firstGroup = client.listGroups().all().get().stream()
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.filter(g => g.groupId() == streamsGroupId).findFirst().orElse(null)
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firstGroup.groupState().orElse(null) == GroupState.NOT_READY && firstGroup.groupId() == streamsGroupId
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}, "Stream group not NOT_READY yet")
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// Verify the describe call works correctly
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val describedGroups = client.describeStreamsGroups(util.List.of(streamsGroupId)).all().get()
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val group = describedGroups.get(streamsGroupId)
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assertNotNull(group)
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assertEquals(streamsGroupId, group.groupId())
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assertFalse(group.members().isEmpty)
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assertNotNull(group.subtopologies())
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assertFalse(group.subtopologies().isEmpty)
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// Verify the topology contains the expected source and sink topics
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val subtopologies = group.subtopologies().asScala
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assertTrue(subtopologies.exists(subtopology =>
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subtopology.sourceTopics().contains(testTopicName)))
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} finally {
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Utils.closeQuietly(streams, "streams")
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Utils.closeQuietly(client, "adminClient")
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}
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}
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@Test
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def testDeleteStreamsGroups(): Unit = {
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val testTopicName = "test_topic"
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@ -1039,7 +1039,16 @@ public class StreamsGroup implements Group {
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.setGroupEpoch(groupEpoch.get(committedOffset))
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.setGroupState(state.get(committedOffset).toString())
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.setAssignmentEpoch(targetAssignmentEpoch.get(committedOffset))
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.setTopology(configuredTopology.get(committedOffset).map(ConfiguredTopology::asStreamsGroupDescribeTopology).orElse(null));
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.setTopology(
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configuredTopology.get(committedOffset)
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.filter(ConfiguredTopology::isReady)
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.map(ConfiguredTopology::asStreamsGroupDescribeTopology)
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.orElse(
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topology.get(committedOffset)
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.map(StreamsTopology::asStreamsGroupDescribeTopology)
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.orElseThrow(() -> new IllegalStateException("There should always be a topology for a streams group."))
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)
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);
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members.entrySet(committedOffset).forEach(
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entry -> describedGroup.members().add(
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entry.getValue().asStreamsGroupDescribeMember(
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@ -16,12 +16,14 @@
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*/
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package org.apache.kafka.coordinator.group.streams;
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import org.apache.kafka.common.message.StreamsGroupDescribeResponseData;
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import org.apache.kafka.common.message.StreamsGroupHeartbeatRequestData;
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import org.apache.kafka.coordinator.group.generated.StreamsGroupTopologyValue;
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import org.apache.kafka.coordinator.group.generated.StreamsGroupTopologyValue.Subtopology;
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import org.apache.kafka.coordinator.group.generated.StreamsGroupTopologyValue.TopicInfo;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.Map;
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import java.util.Objects;
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import java.util.Set;
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@ -95,4 +97,43 @@ public record StreamsTopology(int topologyEpoch,
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.collect(Collectors.toMap(StreamsGroupTopologyValue.Subtopology::subtopologyId, x -> x));
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return new StreamsTopology(topology.epoch(), subtopologyMap);
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}
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public StreamsGroupDescribeResponseData.Topology asStreamsGroupDescribeTopology() {
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return new StreamsGroupDescribeResponseData.Topology()
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.setEpoch(topologyEpoch)
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.setSubtopologies(
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subtopologies.entrySet().stream()
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.sorted(Map.Entry.comparingByKey())
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.map(entry -> asStreamsGroupDescribeSubtopology(entry.getKey(), entry.getValue()))
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.toList()
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);
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}
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private StreamsGroupDescribeResponseData.Subtopology asStreamsGroupDescribeSubtopology(String subtopologyId, StreamsGroupTopologyValue.Subtopology subtopology) {
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return new StreamsGroupDescribeResponseData.Subtopology()
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.setSubtopologyId(subtopologyId)
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.setSourceTopics(subtopology.sourceTopics().stream().sorted().toList())
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.setRepartitionSinkTopics(subtopology.repartitionSinkTopics().stream().sorted().toList())
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.setRepartitionSourceTopics(subtopology.repartitionSourceTopics().stream()
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.map(this::asStreamsGroupDescribeTopicInfo)
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.sorted(Comparator.comparing(StreamsGroupDescribeResponseData.TopicInfo::name)).toList())
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.setStateChangelogTopics(subtopology.stateChangelogTopics().stream()
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.map(this::asStreamsGroupDescribeTopicInfo)
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.sorted(Comparator.comparing(StreamsGroupDescribeResponseData.TopicInfo::name)).toList());
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}
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private StreamsGroupDescribeResponseData.TopicInfo asStreamsGroupDescribeTopicInfo(StreamsGroupTopologyValue.TopicInfo topicInfo) {
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return new StreamsGroupDescribeResponseData.TopicInfo()
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.setName(topicInfo.name())
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.setPartitions(topicInfo.partitions())
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.setReplicationFactor(topicInfo.replicationFactor())
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.setTopicConfigs(
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topicInfo.topicConfigs().stream().map(
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topicConfig -> new StreamsGroupDescribeResponseData.KeyValue()
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.setKey(topicConfig.key())
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.setValue(topicConfig.value())
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).toList()
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);
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}
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}
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@ -9645,19 +9645,43 @@ public class GroupMetadataManagerTest {
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.setProcessId("processId")
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.setMemberEpoch(epoch)
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.setPreviousMemberEpoch(epoch - 1);
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String subtopology1 = "subtopology1";
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String fooTopicName = "foo";
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StreamsTopology topology = new StreamsTopology(
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0,
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Map.of(subtopology1,
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new StreamsGroupTopologyValue.Subtopology()
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.setSubtopologyId(subtopology1)
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.setSourceTopics(List.of(fooTopicName))
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)
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);
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GroupMetadataManagerTestContext context = new GroupMetadataManagerTestContext.Builder()
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.withStreamsGroup(new StreamsGroupBuilder(streamsGroupIds.get(0), epoch))
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.withStreamsGroup(new StreamsGroupBuilder(streamsGroupIds.get(0), epoch)
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.withTopology(topology)
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)
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.withStreamsGroup(new StreamsGroupBuilder(streamsGroupIds.get(1), epoch)
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.withMember(memberBuilder.build()))
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.withMember(memberBuilder.build())
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.withTopology(topology)
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)
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.build();
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StreamsGroupDescribeResponseData.Topology expectedTopology =
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new StreamsGroupDescribeResponseData.Topology()
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.setEpoch(0)
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.setSubtopologies(List.of(
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new StreamsGroupDescribeResponseData.Subtopology()
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.setSubtopologyId(subtopology1)
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.setSourceTopics(List.of(fooTopicName))
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));
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List<StreamsGroupDescribeResponseData.DescribedGroup> expected = Arrays.asList(
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new StreamsGroupDescribeResponseData.DescribedGroup()
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.setGroupEpoch(epoch)
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.setGroupId(streamsGroupIds.get(0))
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.setGroupState(StreamsGroupState.EMPTY.toString())
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.setAssignmentEpoch(0),
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.setAssignmentEpoch(0)
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.setTopology(expectedTopology),
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new StreamsGroupDescribeResponseData.DescribedGroup()
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.setGroupEpoch(epoch)
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.setGroupId(streamsGroupIds.get(1))
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@ -9666,6 +9690,7 @@ public class GroupMetadataManagerTest {
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TasksTuple.EMPTY
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)
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))
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.setTopology(expectedTopology)
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.setGroupState(StreamsGroupState.NOT_READY.toString())
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);
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List<StreamsGroupDescribeResponseData.DescribedGroup> actual = context.sendStreamsGroupDescribe(streamsGroupIds);
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@ -9695,6 +9720,16 @@ public class GroupMetadataManagerTest {
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String memberId1 = "memberId1";
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String memberId2 = "memberId2";
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String subtopologyId = "subtopology1";
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String fooTopicName = "foo";
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StreamsGroupTopologyValue topology = new StreamsGroupTopologyValue()
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.setEpoch(0)
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.setSubtopologies(
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List.of(
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new StreamsGroupTopologyValue.Subtopology()
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.setSubtopologyId(subtopologyId)
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.setSourceTopics(List.of(fooTopicName))
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)
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);
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GroupMetadataManagerTestContext context = new GroupMetadataManagerTestContext.Builder().build();
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@ -9702,6 +9737,7 @@ public class GroupMetadataManagerTest {
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context.replay(StreamsCoordinatorRecordHelpers.newStreamsGroupMemberRecord(streamsGroupId, memberBuilder1.build()));
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context.replay(StreamsCoordinatorRecordHelpers.newStreamsGroupCurrentAssignmentRecord(streamsGroupId, memberBuilder1.build()));
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context.replay(StreamsCoordinatorRecordHelpers.newStreamsGroupEpochRecord(streamsGroupId, epoch + 1, 0));
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context.replay(StreamsCoordinatorRecordHelpers.newStreamsGroupTopologyRecord(streamsGroupId, topology));
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TasksTuple assignment = new TasksTuple(
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Map.of(subtopologyId, Set.of(0, 1)),
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@ -9733,6 +9769,17 @@ public class GroupMetadataManagerTest {
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memberBuilder1.build().asStreamsGroupDescribeMember(TasksTuple.EMPTY),
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memberBuilder2.build().asStreamsGroupDescribeMember(assignment)
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))
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.setTopology(
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new StreamsGroupDescribeResponseData.Topology()
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.setEpoch(0)
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.setSubtopologies(
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List.of(
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new StreamsGroupDescribeResponseData.Subtopology()
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.setSubtopologyId(subtopologyId)
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.setSourceTopics(List.of(fooTopicName))
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)
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)
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)
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.setGroupState(StreamsGroup.StreamsGroupState.NOT_READY.toString())
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.setGroupEpoch(epoch + 2);
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assertEquals(1, actual.size());
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@ -1019,4 +1019,124 @@ public class StreamsGroupTest {
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streamsGroup.removeMember(memberId2);
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assertEquals(Optional.empty(), streamsGroup.getShutdownRequestMemberId());
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}
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@Test
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public void testAsDescribedGroupWithStreamsTopologyHavingSubtopologies() {
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SnapshotRegistry snapshotRegistry = new SnapshotRegistry(new LogContext());
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StreamsGroup group = new StreamsGroup(LOG_CONTEXT, snapshotRegistry, "group-id-with-topology");
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snapshotRegistry.idempotentCreateSnapshot(0);
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// Create a topology with subtopologies
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Map<String, StreamsGroupTopologyValue.Subtopology> subtopologies = Map.of(
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"sub-1", new StreamsGroupTopologyValue.Subtopology()
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.setSubtopologyId("sub-1")
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.setSourceTopics(List.of("input-topic"))
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.setRepartitionSourceTopics(List.of(
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new StreamsGroupTopologyValue.TopicInfo().setName("repartition-topic")
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))
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.setStateChangelogTopics(List.of(
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new StreamsGroupTopologyValue.TopicInfo().setName("changelog-topic")
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))
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);
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group.setGroupEpoch(2);
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group.setTopology(new StreamsTopology(2, subtopologies));
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group.setTargetAssignmentEpoch(2);
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group.updateMember(new StreamsGroupMember.Builder("member1")
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.setMemberEpoch(2)
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.setPreviousMemberEpoch(1)
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.setState(MemberState.STABLE)
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.setInstanceId("instance1")
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.setRackId("rack1")
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.setClientId("client1")
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.setClientHost("host1")
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.setRebalanceTimeoutMs(1000)
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.setTopologyEpoch(2)
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.setProcessId("process1")
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.setUserEndpoint(new StreamsGroupMemberMetadataValue.Endpoint().setHost("host1").setPort(9092))
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.setClientTags(Map.of("tag1", "value1"))
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.setAssignedTasks(new TasksTuple(Map.of(), Map.of(), Map.of()))
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.setTasksPendingRevocation(new TasksTuple(Map.of(), Map.of(), Map.of()))
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.build());
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snapshotRegistry.idempotentCreateSnapshot(1);
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StreamsGroupDescribeResponseData.DescribedGroup describedGroup = group.asDescribedGroup(1);
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assertEquals("group-id-with-topology", describedGroup.groupId());
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assertEquals(StreamsGroup.StreamsGroupState.NOT_READY.toString(), describedGroup.groupState());
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assertEquals(2, describedGroup.groupEpoch());
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assertEquals(2, describedGroup.assignmentEpoch());
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// Verify topology is correctly described
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assertNotNull(describedGroup.topology());
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assertEquals(2, describedGroup.topology().epoch());
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assertEquals(1, describedGroup.topology().subtopologies().size());
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StreamsGroupDescribeResponseData.Subtopology subtopology = describedGroup.topology().subtopologies().get(0);
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assertEquals("sub-1", subtopology.subtopologyId());
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assertEquals(List.of("input-topic"), subtopology.sourceTopics());
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assertEquals(1, subtopology.repartitionSourceTopics().size());
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assertEquals("repartition-topic", subtopology.repartitionSourceTopics().get(0).name());
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assertEquals(1, subtopology.stateChangelogTopics().size());
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assertEquals("changelog-topic", subtopology.stateChangelogTopics().get(0).name());
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assertEquals(1, describedGroup.members().size());
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assertEquals("member1", describedGroup.members().get(0).memberId());
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}
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@Test
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public void testAsDescribedGroupPrefersConfiguredTopologyOverStreamsTopology() {
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SnapshotRegistry snapshotRegistry = new SnapshotRegistry(new LogContext());
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StreamsGroup group = new StreamsGroup(LOG_CONTEXT, snapshotRegistry, "group-id-configured");
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snapshotRegistry.idempotentCreateSnapshot(0);
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// Create both StreamsTopology and ConfiguredTopology
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Map<String, StreamsGroupTopologyValue.Subtopology> subtopologies = Map.of(
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"sub-1", new StreamsGroupTopologyValue.Subtopology()
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.setSubtopologyId("sub-1")
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.setSourceTopics(List.of("streams-topic"))
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);
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group.setGroupEpoch(3);
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group.setTopology(new StreamsTopology(2, subtopologies));
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group.setConfiguredTopology(new ConfiguredTopology(3, 0, Optional.of(new TreeMap<>()), Map.of(), Optional.empty()));
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group.setTargetAssignmentEpoch(3);
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snapshotRegistry.idempotentCreateSnapshot(1);
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StreamsGroupDescribeResponseData.DescribedGroup describedGroup = group.asDescribedGroup(1);
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// Should prefer ConfiguredTopology over StreamsTopology
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assertNotNull(describedGroup.topology());
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assertEquals(3, describedGroup.topology().epoch()); // ConfiguredTopology epoch
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assertEquals(0, describedGroup.topology().subtopologies().size()); // Empty configured topology
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}
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@Test
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public void testAsDescribedGroupFallbackToStreamsTopologyWhenConfiguredTopologyEmpty() {
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SnapshotRegistry snapshotRegistry = new SnapshotRegistry(new LogContext());
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StreamsGroup group = new StreamsGroup(LOG_CONTEXT, snapshotRegistry, "group-id-fallback");
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snapshotRegistry.idempotentCreateSnapshot(0);
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// Create StreamsTopology with subtopologies
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Map<String, StreamsGroupTopologyValue.Subtopology> subtopologies = Map.of(
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"sub-1", new StreamsGroupTopologyValue.Subtopology()
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.setSubtopologyId("sub-1")
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.setSourceTopics(List.of("fallback-topic"))
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);
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group.setGroupEpoch(4);
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group.setTopology(new StreamsTopology(4, subtopologies));
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// No ConfiguredTopology set, so should fallback to StreamsTopology
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group.setTargetAssignmentEpoch(4);
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snapshotRegistry.idempotentCreateSnapshot(1);
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StreamsGroupDescribeResponseData.DescribedGroup describedGroup = group.asDescribedGroup(1);
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// Should use StreamsTopology when ConfiguredTopology is not available
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assertNotNull(describedGroup.topology());
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assertEquals(4, describedGroup.topology().epoch()); // StreamsTopology epoch
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assertEquals(1, describedGroup.topology().subtopologies().size());
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assertEquals("sub-1", describedGroup.topology().subtopologies().get(0).subtopologyId());
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assertEquals(List.of("fallback-topic"), describedGroup.topology().subtopologies().get(0).sourceTopics());
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}
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}
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@ -16,6 +16,7 @@
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*/
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package org.apache.kafka.coordinator.group.streams;
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import org.apache.kafka.common.message.StreamsGroupDescribeResponseData;
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import org.apache.kafka.common.message.StreamsGroupHeartbeatRequestData;
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import org.apache.kafka.coordinator.group.generated.StreamsGroupTopologyValue;
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import org.apache.kafka.coordinator.group.generated.StreamsGroupTopologyValue.Subtopology;
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@ -24,6 +25,7 @@ import org.apache.kafka.coordinator.group.generated.StreamsGroupTopologyValue.To
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import org.junit.jupiter.api.Test;
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import java.util.Arrays;
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import java.util.Comparator;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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@ -120,6 +122,88 @@ public class StreamsTopologyTest {
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assertEquals(mkSubtopology2(), topology.subtopologies().get(SUBTOPOLOGY_ID_2));
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}
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@Test
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public void asStreamsGroupDescribeTopologyShouldReturnCorrectStructure() {
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Map<String, Subtopology> subtopologies = mkMap(
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mkEntry(SUBTOPOLOGY_ID_1, mkSubtopology1()),
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mkEntry(SUBTOPOLOGY_ID_2, mkSubtopology2())
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);
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StreamsTopology topology = new StreamsTopology(1, subtopologies);
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StreamsGroupDescribeResponseData.Topology describeTopology = topology.asStreamsGroupDescribeTopology();
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assertEquals(1, describeTopology.epoch());
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assertEquals(2, describeTopology.subtopologies().size());
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// Verify subtopologies are correctly converted and sorted
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List<StreamsGroupDescribeResponseData.Subtopology> sortedSubtopologies =
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describeTopology.subtopologies().stream()
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.sorted(Comparator.comparing(StreamsGroupDescribeResponseData.Subtopology::subtopologyId))
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.toList();
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// Verify first subtopology
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StreamsGroupDescribeResponseData.Subtopology sub1 = sortedSubtopologies.get(0);
|
||||
assertEquals(SUBTOPOLOGY_ID_1, sub1.subtopologyId());
|
||||
// Source topics are sorted alphabetically
|
||||
assertEquals(List.of(REPARTITION_TOPIC_1, REPARTITION_TOPIC_2, SOURCE_TOPIC_1, SOURCE_TOPIC_2),
|
||||
sub1.sourceTopics());
|
||||
assertEquals(List.of(REPARTITION_TOPIC_3), sub1.repartitionSinkTopics());
|
||||
assertEquals(2, sub1.repartitionSourceTopics().size());
|
||||
assertEquals(2, sub1.stateChangelogTopics().size());
|
||||
|
||||
// Verify second subtopology
|
||||
StreamsGroupDescribeResponseData.Subtopology sub2 = sortedSubtopologies.get(1);
|
||||
assertEquals(SUBTOPOLOGY_ID_2, sub2.subtopologyId());
|
||||
// Source topics are sorted alphabetically
|
||||
assertEquals(List.of(REPARTITION_TOPIC_3, SOURCE_TOPIC_3), sub2.sourceTopics());
|
||||
assertEquals(List.of(), sub2.repartitionSinkTopics());
|
||||
assertEquals(1, sub2.repartitionSourceTopics().size());
|
||||
assertEquals(1, sub2.stateChangelogTopics().size());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void asStreamsGroupDescribeTopicInfoShouldConvertCorrectly() {
|
||||
Map<String, Subtopology> subtopologies = mkMap(
|
||||
mkEntry(SUBTOPOLOGY_ID_1, mkSubtopology1())
|
||||
);
|
||||
StreamsTopology topology = new StreamsTopology(1, subtopologies);
|
||||
|
||||
StreamsGroupDescribeResponseData.Topology describeTopology = topology.asStreamsGroupDescribeTopology();
|
||||
StreamsGroupDescribeResponseData.Subtopology describedSub = describeTopology.subtopologies().get(0);
|
||||
|
||||
// Verify repartition source topics are correctly converted
|
||||
List<StreamsGroupDescribeResponseData.TopicInfo> repartitionTopics = describedSub.repartitionSourceTopics();
|
||||
assertEquals(2, repartitionTopics.size());
|
||||
|
||||
// Find the first repartition topic (they should be sorted by name)
|
||||
StreamsGroupDescribeResponseData.TopicInfo firstTopic = repartitionTopics.stream()
|
||||
.filter(topic -> topic.name().equals(REPARTITION_TOPIC_1))
|
||||
.findFirst()
|
||||
.orElseThrow();
|
||||
assertEquals(REPARTITION_TOPIC_1, firstTopic.name());
|
||||
|
||||
// Verify changelog topics are correctly converted
|
||||
List<StreamsGroupDescribeResponseData.TopicInfo> changelogTopics = describedSub.stateChangelogTopics();
|
||||
assertEquals(2, changelogTopics.size());
|
||||
|
||||
// Find the first changelog topic (they should be sorted by name)
|
||||
StreamsGroupDescribeResponseData.TopicInfo firstChangelog = changelogTopics.stream()
|
||||
.filter(topic -> topic.name().equals(CHANGELOG_TOPIC_1))
|
||||
.findFirst()
|
||||
.orElseThrow();
|
||||
assertEquals(CHANGELOG_TOPIC_1, firstChangelog.name());
|
||||
}
|
||||
|
||||
@Test
|
||||
public void asStreamsGroupDescribeTopologyWithEmptySubtopologies() {
|
||||
StreamsTopology topology = new StreamsTopology(0, Map.of());
|
||||
|
||||
StreamsGroupDescribeResponseData.Topology describeTopology = topology.asStreamsGroupDescribeTopology();
|
||||
|
||||
assertEquals(0, describeTopology.epoch());
|
||||
assertEquals(0, describeTopology.subtopologies().size());
|
||||
}
|
||||
|
||||
private Subtopology mkSubtopology1() {
|
||||
return new Subtopology()
|
||||
.setSubtopologyId(SUBTOPOLOGY_ID_1)
|
||||
|
|
|
|||
Loading…
Reference in New Issue