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KIP

Release

12

KIP-

451: Make TopologyTestDriver output iterable
2.3.0 (WIP)

KIP-443: Return to default segment.ms and segment.index.bytes in Streams repartition topics

2.3.0
32KIP-442: Return to default max poll interval in Streams2.3.0
43KIP-436: Add a metric indicating start time2.3.0 (WIP)
54KIP-415: Incremental Cooperative Rebalancing in Kafka Connect2.3.0 (WIP)
65KIP-427: Add AtMinIsr topic partition category (new metric & TopicCommand option)2.3.0 (WIP)
76KIP-430 - Return Authorized Operations in Describe Responses2.3.0 (WIP)
87KIP-428: Add in-memory window store2.3.0
98KIP-425: Add some Log4J Kafka Appender Properties for Producing to Secured Brokers2.3.0
109KIP-420: Add Single Value Fetch in Session Stores2.2.0
1110KIP-412: Extend Admin API to support dynamic application log levels2.3.0 (WIP)
1211KIP-414: Expose Embedded ClientIds in Kafka Streams2.2.0
1312KIP-402: Improve fairness in SocketServer processors2.2.0 (WIP)
1413KIP-394: Require member.id for initial join group request2.2.0
1514KIP-393: Time windowed serde to properly deserialize changelog input topic2.2.0
1615KIP-386: Standardize on Min/Avg/Max metrics' default value2.2.0
1716KIP-382: MirrorMaker 2.02.3.0 (WIP)
1817KIP-380: Detect outdated control requests and bounced brokers using broker generation2.2.0
1918KIP-377: TopicCommand to use AdminClient2.2.0
2019KIP-376: Implement AutoClosable on appropriate classes that want to be used in a try-with-resource statement2.2.0
2120KIP-374: Add '--help' option to all available Kafka CLI commands2.2.0
2221KIP-372: Naming Repartition Topics for Joins and Grouping2.1.0
2322KIP-371: Add a configuration to build custom SSL principal name2.2.0
2423KIP 368: Allow SASL Connections to Periodically Re-Authenticate2.2.0
2524KIP-367 Introduce close(Duration) to Producer and AdminClient instead of close(long, TimeUnit)2.2.0
2625KIP-366: Make FunctionConversions deprecated2.1.0
2726KIP-365: Materialized, Serialized, Joined, Consumed and Produced with implicit Serde2.1.0
2827KIP-361: Add Consumer Configuration to Disable Auto Topic Creation2.3.0 (WIP)
2928KIP-359: Verify leader epoch in produce requests2.3.0 (WIP)
3029KIP-358: Migrate Streams API to Duration instead of long ms times2.1.0
3130KIP-357: Add support to list ACLs per principal2.1.0
3231KIP-356: Add withCachingDisabled() to StoreBuilder2.1.0
3332KIP-353: Improve Kafka Streams Timestamp Synchronization2.1.0
3433KIP-351: Add --under-min-isr option to describe topics command2.3.0
3534KIP-346: Improve LogCleaner behavior on error2.1
3635KIP-342 Add support for custom SASL extensions in OAuthBearer authentication2.1.0
3736KIP-341: Update Sticky Assignor's User Data Protocol2.3.0 (WIP)
3837KIP-340: Allow kafka-reassign-partitions.sh and kafka-log-dirs.sh to take admin client property file2.1.0
3938KIP-339: Create a new IncrementalAlterConfigs API2.3.0 (WIP)
4039KIP-338 Support to exclude the internal topics in kafka-topics.sh command2.1.0
4140KIP-336: Consolidate ExtendedSerializer/Serializer and ExtendedDeserializer/Deserializer2.1.0
4241KIP-332: Update AclCommand to use AdminClient API2.1.0
4342KIP-331 Add default implementation to close() and configure() for Serializer, Deserializer and Serde2.3.0 (WIP)
4443KIP-330: Add retentionPeriod in SessionBytesStoreSupplier2.1.0
4544KIP-328: Ability to suppress updates for KTables2.1.0 (partially implemented) / 2.3.0 (WIP)
4645KIP-324: Add method to get metrics() in AdminClient2.1.0
4746KIP-322: Return new error code for DeleteTopics API when topic deletion disabled.2.1.0
4847KIP-321: Update TopologyDescription to better represent Source and Sink Nodes2.1.0
4948KIP-320: Allow fetchers to detect and handle log truncation2.1.0 (partially implemented) / 2.2.0
5049KIP-319: Replace segments with segmentInterval in WindowBytesStoreSupplier2.1.0
5150KIP-313: Add KStream.flatTransform and KStream.flatTransformValues 

2.2.0 (partially implemented)

/ 2.3.0 (WIP)

5251KIP-312 Add Overloaded StreamsBuilder Build Method to Accept java.util.Properties2.1.0
5352KIP-308: Support dynamic update of max.connections.per.ip/max.connections.per.ip.overrides2.1.0
5453KIP-306: Configuration for Delaying Response to Failed Authentication2.1.0
5554KIP-305: Add Connect primitive number converters2.0.0
5655KIP-303: Add Dynamic Routing in Streams Sink2.0.0
5756KIP-302 - Enable Kafka clients to use all DNS resolved IP addresses2.1.0
5857KIP-298: Error Handling in Connect2.0.0
5958KIP-297: Externalizing Secrets for Connect Configurations2.0.0
6059KIP-295 Add Streams Configuration Allowing for Optional Topology Optimization2.0.0
6160KIP-294 - Enable TLS hostname verification by default2.0.0
6261KIP-292: Add transformValues() method to KTable2.0.0
6362KIP-290: Support for Prefixed ACLs2.0.0
6463KIP-289: Improve the default group id behavior in KafkaConsumer2.2.0
6564KIP-285: Connect Rest Extension Plugin2.0.0
6665KIP-284: Set default retention ms for Streams repartition topics to Long.MAX_VALUE2.0.0
6766KIP-283: Efficient Memory Usage for Down-Conversion2.0.0
6867KIP-282: Add the listener name to the authentication context2.0.0
6968KIP-281: ConsumerPerformance: Increase Polling Loop Timeout and Make It Reachable by the End User2.0.0
7069KIP-279: Fix log divergence between leader and follower after fast leader fail over2.0.0
7170KIP-278 - Add version option to Kafka's commands2.0.0
7271KIP-277 - Fine Grained ACL for CreateTopics API2.0.0
7372KIP-276 - Add StreamsConfig prefix for different consumers2.0.0
7473KIP-274: Kafka Streams Skipped Records Metrics2.0.0
7574KIP-272: Add API version tag to broker's RequestsPerSec metric2.0.0
7675KIP-270 - A Scala Wrapper Library for Kafka Streams2.0.0
7776KIP-268: Simplify Kafka Streams Rebalance Metadata Upgrade2.0.0
7877KIP-267: Add Processor Unit Test Support to Kafka Streams Test Utils2.0.0
7978KIP-266: Fix consumer indefinite blocking behavior2.0.0
8079KIP-265: Make Windowed Serde to public APIs2.0.0
8180KIP-261: Add Single Value Fetch in Window Stores2.0.0
8281KIP-258: Allow to Store Record Timestamps in RocksDB2.3.0
8382KIP-257 - Configurable Quota Management2.0.0
8483KIP-255: OAuth Authentication via SASL/OAUTHBEARER2.0.0
8584KIP-251: Allow timestamp manipulation in Processor API2.0.0
8685KIP-249: Add Delegation Token Operations to KafkaAdminClient2.0.0
8786KIP-247: Add public test utils for Kafka Streams1.1.0
8887KIP-245: Use Properties instead of StreamsConfig in KafkaStreams constructor2.0.0
8988KIP-244: Add Record Header support to Kafka Streams Processor API2.0.0
9089KIP-243: Make ProducerConfig and ConsumerConfig constructors public1.1.0
9190KIP-239 Add queryableStoreName() to GlobalKTable1.1.0
9291KIP-238: Expose Kafka cluster ID in Connect REST API1.1.0
9392KIP-237: More Controller Health Metrics2.0.0
9493KIP-235: Add DNS alias support for secured connection2.1.0
9594KIP-233: Simplify StreamsBuilder#addGlobalStore1.1.0
9695KIP-231: Improve the Required ACL of ListGroups API2.1.0
9796KIP-229: DeleteGroups API1.1.0
9897KIP-227 - Introduce Incremental FetchRequests to Increase Partition Scalability1.1.0
9998KIP-226 - Dynamic Broker Configuration1.1.0
10099KIP-225 - Use tags for consumer “records.lag” metrics1.1.0
101100KIP-224: Add configuration parameter `retries` to Streams API1.1.0
102101KIP-223 - Add per-topic min lead and per-partition lead metrics to KafkaConsumer2.0.0
103102KIP-222 - Add Consumer Group operations to Admin API2.0.0
104103KIP-220: Add AdminClient into Kafka Streams' ClientSupplier1.1.0
105104KIP-219 - Improve quota communication2.0.0
106105KIP-218: Make KafkaFuture.Function java 8 lambda compatible1.1.0
107106KIP-215: Add topic regex support for Connect sinks1.1.0
108107KIP-214: Add zookeeper.max.in.flight.requests config to the broker1.1.0
109108KIP-213 Support non-key joining in KTable2.3.0 (WIP)
110109KIP-212: Enforce set of legal characters for connector names1.1.0
111110KIP-211: Revise Expiration Semantics of Consumer Group Offsets2.1.0
112111KIP-210 - Provide for custom error handling when Kafka Streams fails to produce1.1.0
113112KIP-208: Add SSL support to Kafka Connect REST interface1.1.0
114113KIP-207: Offsets returned by ListOffsetsResponse should be monotonically increasing even during a partition leader change2.2.0
115114KIP-206: Add support for UUID serialization and deserialization2.1.0
116115KIP-205: Add all() and range() API to ReadOnlyWindowStore1.1.0
117116KIP-204 : Adding records deletion operation to the new Admin Client API1.1.0
118117KIP-203: Add toLowerCase support to sasl.kerberos.principal.to.local rule 1.1.0
119118KIP-202: Move merge() from StreamsBuilder to KStream1.0.0
120119KIP-198: Remove ZK dependency from Streams Reset Tool1.0.0
121120KIP-197 Connect REST API should include the connector type when describing a connector1.0.0
122121KIP-196: Add metrics to Kafka Connect framework1.0.0
123122KIP-195: AdminClient.createPartitions1.0.0
124123KIP-192 : Provide cleaner semantics when idempotence is enabled1.0.0
125124KIP-191: KafkaConsumer.subscribe() overload that takes just Pattern1.0.0
126125KIP-190: Handle client-ids consistently between clients and brokers1.0.0
127126KIP-189: Improve principal builder interface and add support for SASL1.0.0
128127KIP-188 - Add new metrics to support health checks1.0.0
129128KIP-187 - Add cumulative count metric for all Kafka rate metrics1.0.0
130129KIP-186: Increase offsets retention default to 7 days2.0.0
131130KIP-183 - Change PreferredReplicaLeaderElectionCommand to use AdminClient2.2.0
132131KIP-182: Reduce Streams DSL overloads and allow easier use of custom storage engines1.0.0
133132KIP-180: Add a broker metric specifying the number of consumer group rebalances in progress1.1.0
134133KIP-177: Consumer perf tool should count rebalance time1.0.0
135134KIP-176: Remove deprecated new-consumer option for tools2.0.0
136135KIP-175: Additional '--describe' views for ConsumerGroupCommand1.1.0
137136KIP-174 - Deprecate and remove internal converter configs in WorkerConfig2.0.0
138137KIP-173: Add prefix to StreamsConfig to enable setting default internal topic configs1.0.0
139138KIP-171 - Extend Consumer Group Reset Offset for Stream Application1.1.0
140139KIP-168: Add GlobalTopicCount and GlobalPartitionCount metric per cluster1.0.0
141140KIP-167: Add interface for the state store restoration process1.0.0
142141

KIP-164 - Add UnderMinIsrPartitionCount and per-partition UnderMinIsr metrics

1.0.0
143142

KIP-163: Lower the Minimum Required ACL Permission of OffsetFetch

1.0.0
144143KIP-162: Enable topic deletion by default1.0.0
145144KIP-161: streams deserialization exception handlers1.0.0
146145KIP-160: Augment KStream.print(), KStream.writeAsText() to allow users pass in extra parameters in the printed string1.0.0
147146KIP-157 - Add consumer config options to streams reset tool1.0.0
148147KIP-156 Add option "dry run" to Streams application reset tool0.11.0.0
149148KIP-155 - Add range scan for windowed state stores0.11.0.0
150149KIP-154 Add Kafka Connect configuration properties for creating internal topics0.11.0.0
151150KIP-153: Include only client traffic in BytesOutPerSec metric0.11.0.0
152151KIP-152 - Improve diagnostics for SASL authentication failures1.0.0
153152KIP-151 Expose Connector type in REST API0.11.0.0
154153KIP-150 - Kafka-Streams Cogroup2.3.0 (WIP)
155154KIP-149: Enabling key access in ValueTransformer, ValueMapper, and ValueJoiner1.1.0 (partially implemented)
(WIP for 2.3.0)
156155KIP-146 - Classloading Isolation in Connect

0.11.0.0

157156KIP-145 - Expose Record Headers in Kafka Connect1.1.0
158157KIP-144: Exponential backoff for broker reconnect attempts0.11.0.0
159158KIP-143: Controller Health Metrics0.11.0.0
160159KIP-140: Add administrative RPCs for adding, deleting, and listing ACLs0.11.0.0
161160KIP-138: Change punctuate semantics1.0.0
162161KIP-137: Enhance TopicCommand --describe to show topics marked for deletion0.11.0.0
163162KIP-136: Add Listener name to SelectorMetrics tags0.11.0.0
164163KIP-134: Delay initial consumer group rebalance0.11.0.0
165164KIP-133: Describe and Alter Configs Admin APIs0.11.0.0
166165KIP-130: Expose states of active tasks to KafkaStreams public API1.0.0
167166KIP-129: Streams Exactly-Once Semantics0.11.0.0
168167KIP-128: Add ByteArrayConverter for Kafka Connect0.11.0.0
169168KIP-126 - Allow KafkaProducer to split and resend oversized batches.0.11.0.0
170169KIP-124 - Request rate quotas0.11.0.0
171170KIP-123: Allow per stream/table timestamp extractor0.11.0.0
172171KIP-122: Add Reset Consumer Group Offsets tooling0.11.0.0
173172KIP-121: Add KStream peek method

0.11.0.0

174173KIP-120: Cleanup Kafka Streams builder API1.0.0
175174KIP-119: Drop Support for Scala 2.10 in Kafka 0.110.11.0.0
176175KIP-118: Drop Support for Java 72.0.0
177176KIP-117: Add a public AdminClient API for Kafka admin operations0.11.0.0
178177KIP-115: Enforce offsets.topic.replication.factor upon __consumer_offsets auto topic creation0.11.0.0
179178KIP-114: KTable state stores and improved semantics0.11.0.0
180179KIP-113: Support replicas movement between log directories1.1.0
181180KIP-112: Handle disk failure for JBOD1.0.0
182181KIP-110: Add Codec for ZStandard Compression2.1.0
183182KIP-109: Old Consumer Deprecation0.11.0.0
184183KIP-108: Create Topic Policy0.10.2.0
185184KIP-107: Add deleteRecordsBefore() API in AdminClient0.11.0.0
186185

KIP-106 - Change Default unclean.leader.election.enabled from True to False

0.11.0.0
187186KIP-105: Addition of Record Level for Sensors0.10.2.0
188187KIP-104: Granular Sensors for Streams 0.10.2.0
189188KIP-103: Separation of Internal and External traffic0.10.2.0
190189KIP-102 - Add close with timeout for consumers0.10.2.0
191190KIP-101 - Alter Replication Protocol to use Leader Epoch rather than High Watermark for Truncation0.11.0.0
192191KIP-100 - Relax Type constraints in Kafka Streams API0.10.2.0
193192KIP-99: Add Global Tables to Kafka Streams0.10.2.0
194193KIP-98 - Exactly Once Delivery and Transactional Messaging0.11.0.0
195194KIP-97: Improved Kafka Client RPC Compatibility Policy0.10.2.0
196195KIP-96 - Add per partition metrics for in-sync and assigned replica count0.10.2.0
197196KIP-94 Session Windows0.10.2.0
198197KIP-93: Improve invalid timestamp handling in Kafka Streams0.10.2.0
199198KIP-92 - Add per partition lag metrics to KafkaConsumer0.10.2.0
200199KIP-91 Provide Intuitive User Timeouts in The Producer2.1.0
201200KIP-90 - Remove zkClient dependency from Streams0.10.2.0
202201KIP-89: Allow sink connectors to decouple flush and offset commit0.10.2.0
203202KIP-88: OffsetFetch Protocol Update0.10.2.0
204203KIP-86: Configurable SASL callback handlers2.0.0
205204KIP-85: Dynamic JAAS configuration for Kafka clients0.10.2.0
206205KIP-84: Support SASL SCRAM mechanisms0.10.2.0
207206KIP-82 - Add Record Headers0.11.0.0
208207KIP-81: Bound Fetch memory usage in the consumer2.2.0 (WIP)
209208KIP-79 - ListOffsetRequest/ListOffsetResponse v1 and add timestamp search methods to the new consumer0.10.1.0
210209KIP-78: Cluster Id0.10.1.0
211210KIP-77: Improve Kafka Streams Join Semantics0.10.2.0
212211KIP-75 - Add per-connector Converters0.10.1.0
213212KIP-74: Add Fetch Response Size Limit in Bytes0.10.1.0
214213KIP-73: Replication Quotas0.10.1.0
215214KIP-72: Allow putting a bound on memory consumed by Incoming request 1.0.0
216215KIP-71: Enable log compaction and deletion to co-exist0.10.1.0
217216KIP-70: Revise Partition Assignment Semantics on New Consumer's Subscription Change0.10.1.0
218217KIP-67: Queryable state for Kafka Streams0.10.1.0
219218KIP-66: Single Message Transforms for Kafka Connect0.10.2.0 / 0.11.0.0
220219KIP-65: Expose timestamps to Connect0.10.1.0
221220KIP-63: Unify store and downstream caching in streams0.10.1.0
222221KIP-62: Allow consumer to send heartbeats from a background thread0.10.1.0
223222KIP-60 - Make Java client classloading more flexible0.10.1.0
224223KIP-58 - Make Log Compaction Point Configurable0.10.1.0
225224KIP-57 - Interoperable LZ4 Framing0.10.0.0
226225KIP-56: Allow cross origin HTTP requests on all HTTP methods0.10.0.0
227226KIP-55: Secure Quotas for Authenticated Users0.10.1.0
228227KIP-54: Sticky Partition Assignment Strategy0.11.0.0
229228KIP-52: Connector Control APIs0.10.0.0
230229KIP-51 - List Connectors REST API0.10.0.0
231230KIP-50 - Move Authorizer to o.a.k.common package0.10.1.0
232231KIP-48 Delegation token support for Kafka1.1.0
233232KIP-45 - Standardize all client sequence interaction on j.u.Collection.0.10.0.0
234233KIP-43: Kafka SASL enhancements0.10.0.0
235234KIP-42: Add Producer and Consumer Interceptors0.10.0.0
236235KIP-41: Consumer Max Records0.10.0.0
237236KIP-40: ListGroups and DescribeGroup0.9.0.0
238237KIP-38: ZooKeeper Authentication0.9.0.0
239238KIP-36 - Rack aware replica assignment0.10.0.0
240239KIP-35 - Retrieving protocol version0.10.0.0
241240KIP-33 - Add a time based log index0.10.1.0
242241KIP-32 - Add timestamps to Kafka message0.10.0.0
243242KIP-31 - Move to relative offsets in compressed message sets0.10.0.0
244243KIP-28 - Add a processor client0.10.0.0
245244KIP-26 - Add Kafka Connect framework for data import/export0.9.0.0
246245KIP-25 - System test improvements0.9.0.0
247246KIP-22 - Expose a Partitioner interface in the new producer0.9.0.0
248247KIP-21 - Dynamic Configuration0.9.0.0 (WIP)
249248KIP-20 Enable log preallocate to improve consume performance under windows and some old Linux file system0.9.0.0
250249KIP-19 - Add a request timeout to NetworkClient0.9.0.0
251250KIP-16 - Automated Replica Lag Tuning0.9.0.0
252251KIP-15 - Add a close method with a timeout in the producer0.9.0.0
253252KIP-13 - Quota Design0.9.0.0
254253KIP-12 - Kafka Sasl/Kerberos and SSL implementation0.9.0.0
255254KIP-11 - Kafka Authorizer design0.9.0.0
256255KIP-8 - Add a flush method to the producer API0.9.0.0
257256KIP-4 - Metadata Protocol Changes0.10.0.0
258257KIP-4 - Command line and centralized administrative operations0.9.0.0, 0.10.0.0, 0.10.1.0
259258KIP-3 - Mirror Maker Enhancement0.9.0.0
260259KIP-2 - Refactor brokers to allow listening on multiple ports and IPs0.9.0.0
261260KIP-1 - Remove support of request.required.acks0.9.0.0

...

KIPComment
KIP-59: Proposal for a kafka broker commandSent emails to Dev discussion group. Work tracked under KAFKA-3663.
KIP-125: ZookeeperConsumerConnector to KafkaConsumer Migration and Rollback
KIP-131 - Add access to OffsetStorageReader from SourceConnector
KIP-135 : Send of null key to a compacted topic should throw non-retriable error back to user
KIP 141 - ProducerRecord & SourceRecord: Add timestamp constructors
KIP-142: Add ListTopicsRequest to efficiently list all the topics in a cluster
KIP-148: Add a connect timeout for client
KIP-158: Kafka Connect should allow source connectors to set topic-specific settings for new topics
KIP-159: Introducing Rich functions to Streams
KIP-166 - Add a tool to make amounts of replicas and leaders on brokers balanced
KIP-169 - Lag-Aware Partition Assignment Strategy
KIP-178: Size-based log directory selection strategy


KIP-185: Make exactly once in order delivery the default producer setting


KIP-193: Add SchemaBuilder.from(Schema)
KIP-199: Add Kafka Connect offset tool
KIP-201: Rationalising Policy interfaces
KIP-209: Connection String Support
KIP-216: IQ should throw different exceptions for different errors
KIP-217: Expose a timeout to allow an expired ZK session to be re-created
KIP-221: Enhance KStream with Connecting Topic Creation and Repartition HintDiscussion
KIP-228 Negative record timestamp supportVoting in progress
KIP-234: add support for getting topic defaults from AdminClient
KIP-236: Interruptible Partition Reassignment Discussion
KIP-240: AdminClient.listReassignments() AdminClient.describeReassignments()
KIP-242: Mask password in Kafka Connect Rest API response
KIP-250 Add Support for Quorum-based Producer Acknowledgment
KIP-252 - Extend ACLs to allow filtering based on ip ranges and subnets
KIP-253: Support in-order message delivery with partition expansion Discussion
KIP-254: JsonConverter Exception Handeling
KIP-259: Improve Streams DSL Timestamp Propagation Semantics
KIP-260: add primary join operation for Stream-Stream join (WIP)Draft
KIP-264: Add a consumer metric to record raw fetch sizeVoting in progress
KIP-271: Add NetworkClient redirectorDiscussion
KIP-273: Kafka to support using ETCD beside ZookeeperDiscussion
KIP-275 - Indicate "isClosing" in the SinkTaskContextVoting in progress
KIP-280: Enhanced log compactionDiscussion

KIP-291: Separating controller connections and requests from the data plane

Accepted
KIP-293 Add new metrics for consumer/replication fetch requestsVoting in progress
KIP-296: Add connector level configurability for producer/consumer client configs Discussion
KIP-300: Add Windowed KTable API in StreamsBuilderDiscussion
KIP-301: Schema Inferencing for JsonConverterDiscussion
KIP-304: Connect runtime mode improvements for container platformsDiscussion
KIP-307: Allow to define custom processor names with KStreams DSLDiscussion
KIP-314: KTable to GlobalKTable Bi-directional JoinDiscussion
KIP-315: Stream Join Sticky AssignorDiscussion
KIP-316: Command-line overrides for ConnectDistributed worker propertiesDiscussion
KIP-317: Add transparent data encryption functionalityDiscussion
KIP-325: Extend Consumer Group Command to Show Beginning OffsetsVoting in Progress
KIP-326: Schedulable KTable as Graph sourceDiscussion
KIP-333: Add faster mode of rebalancingDiscussion
KIP-334 - Include partitions in exceptions raised during consumer record deserialization/validation
KIP-335: Consider configurations for KafkaStreams

Discussion

KIP-345: Introduce static membership protocol to reduce consumer rebalancesAccepted
KIP-347: Enable batching in FindCoordinatorRequestDiscussion
KIP-348 Eliminate null from SourceTask#poll()
KIP-350: Allow kafka-topics.sh to take brokerid as parameter to show partitions associated with it
KIP-354: Add a Maximum Log Compaction LagAccepted
KIP-356: Add KafkaConsumer fetch-error-rate and fetch-error-total metricsDiscussion
KIP-360: Improve handling of unknown producerDiscussion
KIP-362: Support Dynamic Session WindowDiscussion
KIP-363: Allow performance tools to print final results to output fileDiscussion
KIP-369: Alternative Partitioner to Support "Always Round-Robin" SelectionDiscussion
KIP-370: Remove Orphan PartitionsDiscussion
KIP-373: Allow users to create delegation tokens for other usersDiscussion
KIP-375: Kafka Clients - make Metadata#TOPIC_EXPIRY_MS configurableDiscussion
KIP-378: Enable Dependency Injection for Kafka Streams handlersDiscussion

KIP-379: Multiple Consumer Group Management

Accepted
KIP-381: Connect: Tell about records that had their offsets flushed in callback

Voting in progress (restarted 18th January 2019, due to no votes in first attempt)

KIP-383:  Pluggable interface for SSL FactoryVoting in progress
KIP-384: Add config for incompatible changes to persistent metadataDiscussion
KIP-385: Avoid throwing away prefetched dataDiscussion
KIP-387: Fair Message Consumption Across Partitions in KafkaConsumer

Discussion

KIP-388: Add observer interface to record request and responseDiscussion
KIP-389: Introduce a configurable consumer group size limitAccepted
KIP-390: Allow fine-grained configuration for compressionDiscussion, JIRA exists with pull-request
KIP-391: Allow Producing with Offsets for Cluster ReplicationDiscussion, JIRA exists with pull-request
KIP-392: Allow consumers to fetch from closest replicaDiscussion
KIP-395: Encypt-then-MAC Delegation token metadata

KIP-396: Add Commit/List Offsets Operations to AdminClient

Discussion
KIP-397: Add methods to override fetch offsets based on timestampDiscussion
KIP-398: Support reading trust store from classpathDiscussion
KIP-399: Extend ProductionExceptionHandler to cover serialization exceptionsDiscussion
KIP-400: Improve exit status in case of errors in ConsoleProducerDiscussion
KIP-401: TransformerSupplier/ProcessorSupplier EnhancementsDiscussion
KIP-403: Increase ProducerPerformance precision by using nanoTimeDraft
KIP-405: Kafka Tiered Storage

Discussion

KIP-406: GlobalStreamThread should honor custom offset policy.Discussion
KIP-407: Kafka Connect support override worker kafka api configuration with connector configuration that post by rest api
KIP-408: Add asynchronous processing to Kafka StreamsDiscussion

KIP-409: Allow creating under-replicated topics and partitions


KIP-410: Add metric for request handler thread pool utilization by request type

Discussion

KIP-411: Make default Kafka Connect worker task client IDs distinct

Voting In Progress
KIP-416: Notify SourceTask of ACK'd offsets, metadataDiscussion
KIP-417: Allow JmxTool to connect to a secured RMI portDiscussion, JIRA exists with pull-request
KIP-418: A method-chaining way to branch KStreamDiscussion, JIRA exists with pull-request
KIP-419: Safely notify Kafka Connect SourceTask is stoppedVoting in progress, JIRA exists with pull request
KIP-421: Support resolving externalized secrets in AbstractConfigDiscussion
KIP-422: Add support for user/client configuration in the Kafka Admin ClientDiscussion, JIRA exists with pull-request
KIP-423: Add JoinReason to Consumer Join Group Protocol

Discussion

KIP-424: Allow suppression of intermediate events based on wall clock timeDiscussion
KIP-426: Persist Broker Id to ZookeeperDiscussion
KIP-429: Kafka Consumer Incremental Rebalance ProtocolDiscussion
KIP-431: Support of printing additional ConsumerRecord fields in DefaultMessageFormatterDiscussion, JIRA exists with pull-request
KIP-434: Add Replica Fetcher and Log Cleaner Count MetricsDiscussion
KIP-435: Incremental Partition ReassignmentDiscussion
KIP-437: Custom replacement for MaskField SMTDiscussion, JIRA exists with pull-request
KIP-438: Expose task, connector IDs in Connect APIDiscussion
KIP-439: Deprecate Interface WindowStoreIteratorDiscussion
KIP-440: Extend Connect Converter to support headersDiscussion
KIP-444: Augment metrics for Kafka StreamsDiscussion
KIP-445: In-memory Session StoreDiscussion, JIRA exists with pull-request
KIP-446: Add changelog topic configuration to KTable suppressDiscussion
KIP-448: Add State Stores Unit Test Support to Kafka Streams Test UtilsDiscussion
KIP-449: Add connector contexts to log messages in Connect workers Discussion
KIP-450: Sliding Window Aggregations in the DSLDiscussion
KIP-451: Make TopologyTestDriver output iterableDiscussion


Dormant/inactive KIPs

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