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- Kafka Improvement Proposals
- drafts
- KIP-1 - Remove support of request.required.acks
- KIP-2 - Refactor brokers to allow listening on multiple ports and IPs
- KIP-3 - Mirror Maker Enhancement
- KIP-4 - Command line and centralized administrative operations
- KIP-5 - Broker Configuration Management
- KIP-6 - New reassignment partition logic for rebalancing
- KIP-7 - Security - IP Filtering
- KIP-8 - Add a flush method to the producer API
- KIP-12 - Kafka Sasl/Kerberos and SSL implementation
- KIP-13 - Quotas
- KIP-14 - Tools Standardization
- KIP-15 - Add a close method with a timeout in the producer
- KIP-16 - Automated Replica Lag Tuning
- KIP-17 - Add HighwaterMarkOffset to OffsetFetchResponse
- KIP-18 - JBOD Support
- KIP-19 - Add a request timeout to NetworkClient
- KIP-20 - Enable log preallocate to improve consume performance under windows and some old Linux file system
- KIP-21 - Dynamic Configuration
- KIP-22 - Expose a Partitioner interface in the new producer
- KIP-23 - Add JSON/CSV output and looping options to ConsumerGroupCommand
- KIP-24 - Remove ISR information from TopicMetadataRequest and add broker level metadata request
- KIP-25 - System test improvements
- KIP-26 - Add Kafka Connect framework for data import/export
- KIP-27 - Conditional Publish
- KIP-28 - Add a processor client
- KIP-29 - Add an IsrPropagateIntervalMs configuration to KafkaConfig
- KIP-30 - Allow for brokers to have plug-able consensus and meta data storage sub systems
- KIP-31 - Move to relative offsets in compressed message sets
- KIP-32 - Add timestamps to Kafka message
- KIP-33 - Add a time based log index
- KIP-34 Add Partitioner Change Listener to Partitioner Interface for Multiple Use Case
- KIP-35 - Retrieving protocol version
- KIP-36 Rack aware replica assignment
- KIP-37 - Add Namespaces to Kafka
- KIP-38: ZooKeeper Authentication
- KIP-39 Pinning controller to broker
- KIP-40: ListGroups and DescribeGroup
- KIP-41: KafkaConsumer Max Records
- KIP-42: Add Producer and Consumer Interceptors
- KIP-43: Kafka SASL enhancements
- KIP-44 - Allow Kafka to have a customized security protocol
- KIP-45 - Standardize all client sequence interaction on j.u.Collection.
- KIP-46: Self Healing Kafka
- KIP-47 - Add timestamp-based log deletion policy
- KIP-48 Delegation token support for Kafka
- KIP-49 - Fair Partition Assignment Strategy
- KIP-50 - Move Authorizer to o.a.k.common package
- KIP-51 - List Connectors REST API
- KIP-52: Connector Control APIs
- KIP-53 - Add custom policies for reconnect attempts to NetworkdClient
- KIP-54 - Sticky Partition Assignment Strategy
- KIP-55: Secure Quotas for Authenticated Users
- KIP-56: Allow cross origin HTTP requests on all HTTP methods
- KIP-57 - Interoperable LZ4 Framing
- KIP-58 - Make Log Compaction Point Configurable
- KIP-59: Proposal for a kafka broker command
- KIP-60 - Make Java client classloading more flexible
- KIP-61: Add a log retention parameter for maximum disk space usage percentage
- KIP-62: Allow consumer to send heartbeats from a background thread
- KIP-63: Unify store and downstream caching in streams
- KIP-64 -Allow underlying distributed filesystem to take over replication depending on configuration
- KIP-65: Expose timestamps to Connect
- KIP-66: Single Message Transforms for Kafka Connect
- KIP-67: Queryable state for Kafka Streams
- KIP-68 Add a consumed log retention before log retention
- KIP-69 - Kafka Schema Registry
- KIP-70: Revise Partition Assignment Semantics on New Consumer's Subscription Change
- KIP-71: Enable log compaction and deletion to co-exist
- KIP-72: Allow putting a bound on memory consumed by Incoming requests
- KIP-73 Replication Quotas
- KIP-74: Add Fetch Response Size Limit in Bytes
- KIP-75 - Add per-connector Converters
- KIP-76 Enable getting password from executable rather than passing as plaintext in config files
- KIP-77: Improve Kafka Streams Join Semantics
- KIP-78: Cluster Id
- KIP-79 - ListOffsetRequest/ListOffsetResponse v1 and add timestamp search methods to the new consumer
- KIP-80: Kafka Rest Server
- KIP-81: Bound Fetch memory usage in the consumer
- KIP-82 - Add Record Headers
- KIP-83 - Allow multiple SASL authenticated Java clients in a single JVM process
- KIP-84: Support SASL SCRAM mechanisms
- KIP-85: Dynamic JAAS configuration for Kafka clients
- KIP-86: Configurable SASL callback handlers
- KIP-87 - Add Compaction Tombstone Flag
- KIP-88: OffsetFetch Protocol Update
- KIP-89: Allow sink connectors to decouple flush and offset commit
- KIP-90 - Remove zkClient dependency from Streams
- KIP-91 Provide Intuitive User Timeouts in The Producer
- KIP-92 - Add per partition lag metrics to KafkaConsumer
- KIP-93: Improve invalid timestamp handling in Kafka Streams
- KIP-94 Session Windows
- KIP-95: Incremental Batch Processing for Kafka Streams
- KIP-96 - Add per partition metrics for in-sync and assigned replica count
- KIP-97: Improved Kafka Client RPC Compatibility Policy
- KIP-98 - Exactly Once Delivery and Transactional Messaging
- KIP-99: Add Global Tables to Kafka Streams
- KIP-100 - Relax Type constraints in Kafka Streams API
- KIP-101 - Alter Replication Protocol to use Leader Epoch rather than High Watermark for Truncation
- KIP-102 - Add close with timeout for consumers
- KIP-103: Separation of Internal and External traffic
- KIP-104: Granular Sensors for Streams
- KIP-105: Addition of Recording Level for Sensors
- KIP-106 - Change Default unclean.leader.election.enabled from True to False
- KIP-107: Add deleteRecordsBefore() API in AdminClient
- KIP-108: Create Topic Policy
- KIP-109: Old Consumer Deprecation
- KIP-110: Add Codec for ZStandard Compression
- KIP-111: Kafka should preserve the Principal generated by the PrincipalBuilder while processing the request received on socket channel, on the broker.
- KIP-112: Handle disk failure for JBOD
- KIP-113: Support replicas movement between log directories
- KIP-114: KTable state stores and improved semantics
- KIP-115: Enforce offsets.topic.replication.factor upon __consumer_offsets auto topic creation
- KIP-116: Add State Store Checkpoint Interval Configuration
- KIP-117: Add a public AdminClient API for Kafka admin operations
- KIP-118: Drop Support for Java 7
- KIP-119: Drop Support for Scala 2.10 in Kafka 0.11
- KIP-120: Cleanup Kafka Streams builder API
- KIP-121: Add KStream peek method
- KIP-122: Add Reset Consumer Group Offsets tooling
- KIP-123: Allow per stream/table timestamp extractor
- KIP-124 - Request rate quotas
- KIP-Template
- KIP-125: ZookeeperConsumerConnector to KafkaConsumer Migration and Rollback
- KIP-127: Pluggable JAAS LoginModule configuration for SSL
- KIP-126 - Allow KafkaProducer to split and resend oversized batches.
- KIP-128: Add ByteArrayConverter for Kafka Connect
- KIP-129: Streams Exactly-Once Semantics
- KIP 130: Expose states of active tasks to KafkaStreams public API
- KIP-131 - Add access to OffsetStorageReader from SourceConnector
- KIP-132: Augment KStream.print to allow extra parameters in the printed string
- KIP-133: Describe and Alter Configs Admin APIs
- KIP-134: Delay initial consumer group rebalance
- KIP-135 : Send of null key to a compacted topic should throw non-retriable error back to user
- KIP-136: Add Listener name to SelectorMetrics tags
- KIP-137: Enhance TopicCommand --describe to show topics marked for deletion
- KIP-138: Change punctuate semantics
- KIP-139: Kafka TestKit library
- KIP-140: Add administrative RPCs for adding, deleting, and listing ACLs
- 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-143: Controller Health Metrics
- KIP-144: Exponential backoff for broker reconnect attempts
- KIP-146 - Classloading Isolation in Connect
- KIP-145 - Expose Record Headers in Kafka Connect
- KIP-147: Add missing type parameters to StateStoreSupplier factories and KGroupedStream/Table methods
- KIP-149: Enabling key access in ValueTransformer, ValueMapper, and ValueJoiner
- KIP-150 - Kafka-Streams Cogroup
- KIP-151 Expose Connector type in REST API
- KIP-152 - Improve diagnostics for SASL authentication failures
- KIP-153: Include only client traffic in BytesOutPerSec metric
- KIP-154 Add Kafka Connect configuration properties for creating internal topics
- KIP 155 - Add range scan for windowed state stores
- KIP 156 Add option "dry run" to Streams application reset tool
- KIP 157 - Add consumer config options to streams reset tool
- KIP-158: Kafka Connect should allow source connectors to set topic-specific settings for new topics
- KIP-159: Introducing Rich functions to Streams
- KIP-160: Augment KStream.print(), KStream.writeAsText() to allow users pass in extra parameters in the printed string
- KIP-161: streams deserialization exception handlers
- KIP-162 - Enable topic deletion by default
- KIP-163: Lower the Minimum Required ACL Permission of OffsetFetch
- KIP-164- Add UnderMinIsrPartitionCount and per-partition UnderMinIsr metrics
- KIP-165: Extend Interactive Queries for return latest update timestamp per key
- KIP-166 - Add a tool to make amounts of replicas and leaders on brokers balanced
- KIP-167: Add interface for the state store restoration process
- KIP-168: Add GlobalTopicCount and GlobalPartitionCount metrics per cluster
- KIP-169 - Lag-Aware Partition Assignment Strategy
- KIP-170: Enhanced TopicCreatePolicy and introduction of TopicDeletePolicy
- KIP-171 - Extend Consumer Group Reset Offset for Stream Application
- KIP 172: Add regular-expression topic support for sink connector
- KIP-173: Add prefix to StreamsConfig to enable setting default internal topic configs
- KIP-174 - Deprecate and remove internal converter configs in WorkerConfig
- KIP-175: Additional '--describe' views for ConsumerGroupCommand
- KIP-176: Remove deprecated new-consumer option for tools
- KIP-178: Size-based log directory selection strategy
- Old KIP-179 - Change ReassignPartitionsCommand to use AdminClient
- KIP-180: Add a broker metric specifying the number of consumer group rebalances in progress
- KIP-181: DescribeGroups Protocol Enhancement
- KIP-182: Reduce Streams DSL overloads and allow easier use of custom storage engines
- KIP-179 - Change ReassignPartitionsCommand to use AdminClient
- KIP-183 - Change PreferredReplicaLeaderElectionCommand to use AdminClient
- KIP-184: Rename LogCleaner and related classes to LogCompactor
- KIP-185: Make exactly once in order delivery per partition the default producer setting
- KIP-186: Increase offsets retention default to 7 days
- KIP-177: Consumer perf tool should count rebalance time
- KIP-187 - Add cumulative count metric for all Kafka rate metrics
- KIP-188 - Add new metrics to support health checks
- KIP-189: Improve principal builder interface and add support for SASL
- KIP-190: Handle client-ids consistently between clients and brokers
- KIP-191: KafkaConsumer.subscribe() overload that takes just Pattern
- KIP-192 : Provide cleaner semantics when idempotence is enabled
- KIP-193: Add SchemaBuilder.from(Schema)
- KIP-195: AdminClient.createPartitions
- KIP-196: Add metrics to Kafka Connect framework
- KIP-197 Connect REST API should include the connector type when describing a connector
- KIP-198: Remove ZK dependency from Streams Reset Tool
- KIP-199: Add Kafka Connect offset tool
- KIP-201: Rationalising Policy interfaces
- KIP-202 Move merge() from StreamsBuilder to KStream
- KIP-203: Add toLowerCase support to sasl.kerberos.principal.to.local rule
- KIP-204 : Adding records deletion operation to the new Admin Client API
- KIP-205: Add all() and range() API to ReadOnlyWindowStore
- KIP-206: Add support for UUID serialization and deserialization
- KIP-207: Offsets returned by ListOffsetsResponse should be monotonically increasing even during a partition leader change
- KIP-208: Add SSL support to Kafka Connect REST interface
- KIP-209 - Connection String Support
- KIP-210 - Provide for custom error handling when Kafka Streams fails to produce
- KIP-211: Revise Expiration Semantics of Consumer Group Offsets
- KIP-212: Enforce set of legal characters for connector names
- KIP-213 Support non-key joining in KTable
- KIP-214: Add zookeeper.max.in.flight.requests config to the broker
- KIP-215: Add topic regex support for Connect sinks
- 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-218: Make KafkaFuture.Function java 8 lambda compatible
- KIP-219 - Improve quota communication
- KIP-220: Add AdminClient into Kafka Streams' ClientSupplier
- KIP-221: Enhance DSL with Connecting Topic Creation and Repartition Hint
- KIP-222 - Add Consumer Group operations to Admin API
- KIP-223 - Add per-topic min lead and per-partition lead metrics to KafkaConsumer
- KIP-224: Add configuration parameter `retries` to Streams API
- KIP-225 - Use tags for consumer “records.lag” metrics
- KIP-226 - Dynamic Broker Configuration
- KIP-227: Introduce Incremental FetchRequests to Increase Partition Scalability
- KIP-228 Negative record timestamp support
- KIP-229: DeleteGroups API
- KIP 230: Name Windowing Joins
- KIP-231: Improve the Required ACL of ListGroups API
- KIP-232: Detect outdated metadata using leaderEpoch and partitionEpoch
- KIP-233: Simplify StreamsBuilder#addGlobalStore
- KIP-234: add support for getting topic defaults from AdminClient
- KIP-235: Add DNS alias support for secured connection
- KIP-236: Interruptible Partition Reassignment
- KIP-237: More Controller Health Metrics
- KIP-238: Expose Kafka cluster ID in Connect REST API
- KIP-239 Add queryableStoreName() to GlobalKTable
- KIP-240: AdminClient.listReassignments AdminClient.describeReassignments
- KIP-241 KTable repartition with compacted Topics
- KIP-242: Mask password in Kafka Connect Rest API response
- KIP-243: Make ProducerConfig and ConsumerConfig constructors public
- KIP-244: Add Record Header support to Kafka Streams Processor API
- KIP-245: Use Properties instead of StreamsConfig in KafkaStreams constructor
- KIP-260: add primary join operation for Stream-Stream join (WIP)
- KIP-246: Connect producers and consumers should inherit worker configs
- KIP-247: Add public test utils for Kafka Streams
- KIP-248 - Create New ConfigCommand That Uses The New AdminClient
- KIP-249: Add Delegation Token Operations to KafkaAdminClient
- KIP-250 Add Support for Quorum-based Producer Acknowledgment
- KIP-251: Allow timestamp manipulation in Processor API
- KIP-252 - Extend ACLs to allow filtering based on ip ranges and subnets
- KIP-253: Support in-order message delivery with partition expansion
- KIP-254: JsonConverter Exception Handeling
- KIP-255 OAuth Authentication via SASL/OAUTHBEARER
- KIP-256: Add RocksDB statistics via Streams metrics
- KIP-257 - Configurable Quota Management
- KIP-258: Allow to Store Record Timestamps in RocksDB
- KIP-259: Improve Streams DSL Timestamp Propagation Semantics
- KIP-261: Add Single Value Fetch in Window Stores
- KIP-262: Metadata should include number of state stores for task
- KIP-263: Allow broker to skip sanity check of inactive segments on broker startup
- KIP-264: Add a consumer metric to record raw fetch size
- KIP-265: Make Windowed Serde to public APIs
- KIP-266: Fix consumer indefinite blocking behavior
- KIP-267: Add Processor Unit Test Support to Kafka Streams Test Utils
- KIP-268: Simplify Kafka Streams Rebalance Metadata Upgrade
- KIP 269 Substitution Within Configuration Values
- KIP-270 - A Scala Wrapper Library for Kafka Streams
- KIP-271: Add NetworkClient redirector
- KIP-272: Add API version tag to broker's RequestsPerSec metric
- KIP-273 - Kafka to support using ETCD beside Zookeeper
- KIP-274: Kafka Streams Skipped Records Metrics
- KIP-275 - Indicate "isClosing" in the SinkTaskContext
- KIP-276 Add StreamsConfig prefix for different consumers
- KIP-277 - Fine Grained ACL for CreateTopics API
- KIP-278 - Add version option to Kafka's commands
- KIP-281: ConsumerPerformance: Increase Polling Loop Timeout and Make It Reachable by the End User
- KIP-279: Fix log divergence between leader and follower after fast leader fail over
- KIP-280: Enhanced log compaction
- KIP-282: Add the listener name to the authentication context
- KIP-283: Efficient Memory Usage for Down-Conversion
- KIP-284: Set default retention ms for Streams repartition topics to Long.MAX_VALUE
- KIP-285: Connect Rest Extension Plugin
- KIP-286: producer.send() should not block on metadata update
- KIP-287: Support partition and processor expansion for stateful processing jobs
- KIP-288: [DISCARDED] Consumer.poll() timeout semantic change and new waitForAssignment method
- KIP-289: Improve the default group id behavior in KafkaConsumer
- KIP-290: Support for Prefixed ACLs
- KIP-292: Add transformValues() method to KTable
- KIP-293 Add new metrics for consumer/replication fetch requests
- KIP-291: Separating controller connections and requests from the data plane
- KIP-294 - Enable TLS hostname verification by default
- KIP-295: Add Streams Configuration Allowing for Optional Topology Optimization
- KIP-296: Connector level configurability for client configs
- KIP-NEXT: Get rid of unnecessary read lock
- KIP-297: Externalizing Secrets for Connect Configurations
- KIP-DRAFT: Error Handling in Connect
- KIP-298: Error Handling in Connect
- KIP-300: Add Windowed KTable API in StreamsBuilder
- KIP-301: Schema Inferencing for JsonConverter
- KIP-302 - Enable Kafka clients to use all DNS resolved IP addresses
- KIP-303: Add Dynamic Routing in Streams Sink
- KIP-304: Connect runtime mode improvements for container platforms
- KIP-305: Add Connect primitive number converters
- KIP-306: Configuration for Delaying Response to Failed Client Authentication
- KIP-307: Allow to define custom processor names with KStreams DSL
- KIP-635: GetOffsetShell: support for multiple topics and consumer configuration override
- KIP-308: Support dynamic update of max.connections.per.ip/max.connections.per.ip.overrides configs
- KIP-309: Add toUpperCase support to sasl.kerberos.principal.to.local rule
- KIP-310: Add a Kafka Source Connector to Kafka Connect
- KIP-311: Async processing with dynamic scheduling in Kafka Streams
- KIP-313: Add KStream.flatTransform and KStream.flatTransformValues
- KIP-312: Add Overloaded StreamsBuilder Build Method to Accept java.util.Properties
- KIP-314: KTable to GlobalKTable Bi-directional Join
- KIP-316: Command-line overrides for ConnectDistributed worker properties
- KIP-317: Add end-to-end data encryption functionality to Apache Kafka
- KIP-318: Make Kafka Connect Source idempotent
- KIP-319: Replace segments with segmentInterval in WindowBytesStoreSupplier
- KIP-315: Stream Join Sticky Assignor
- KIP-320: Allow fetchers to detect and handle log truncation
- KIP-321: Update TopologyDescription to better represent Source and Sink Nodes
- KIP-322: Return new error code for DeleteTopics API when topic deletion disabled.
- KIP-326: Schedulable KTable as Graph source
- KIP-324: Add method to get metrics() in AdminClient
- KIP-327: Add describe all topics API to AdminClient
- KIP-325: Extend Consumer Group Command to Show Beginning Offsets
- KIP-328: Ability to suppress updates for KTables
- KIP-330: Add retentionPeriod in SessionBytesStoreSupplier
- KIP-332: Update AclCommand to use AdminClient API
- KIP-331 Add default implementation to close() and configure() for Serializer, Deserializer and Serde
- KIP-333: Add faster mode of rebalancing
- KIP-334 - Include partitions in exceptions raised during consumer record deserialization/validation
- KIP-335: Consider configurations for KafkaStreams
- KIP-336: Consolidate ExtendedSerializer/Serializer and ExtendedDeserializer/Deserializer
- KIP-338 Support to exclude the internal topics in kafka-topics.sh command
- KIP-339: Create a new IncrementalAlterConfigs API
- KIP-340: Allow kafka-reassign-partitions.sh and kafka-log-dirs.sh to take admin client property file
- KIP-341: Update Sticky Assignor's User Data Protocol
- KIP-342: Add support for Custom SASL extensions in OAuthBearer authentication
- KIP-343: Add a Controller Heartbeat Mechanism
- KIP-344: The auto-generated client id should be passed to MetricsReporter
- KIP-345: Introduce static membership protocol to reduce consumer rebalances
- KIP-346 - Improve LogCleaner behavior on error
- KIP-347: Enable batching in FindCoordinatorRequest
- KIP-348 Deprecate null from SourceTask#poll()
- KIP-349: Priorities for Source Topics
- KIP-350: Allow kafka-topics.sh to take brokerid as parameter to show partitions associated with it
- KIP-351: Add --under-min-isr option to describe topics command
- KIP-352: Distinguish URPs caused by reassignment
- KIP-353: Improve Kafka Streams Timestamp Synchronization
- KIP-354: Add a Maximum Log Compaction Lag
- KIP-356: Add withCachingDisabled() to StoreBuilder
- KIP-356: Add KafkaConsumer fetch-error-rate and fetch-error-total metrics
- KIP-357: Add support to list ACLs per principal
- KIP-358: Migrate Streams API to Duration instead of long ms times
- KIP-359: Verify leader epoch in produce requests
- KIP-360: Improve reliability of idempotent/transactional producer
- KIP-361: Add Consumer Configuration to Disable Auto Topic Creation
- KIP-362: Support dynamic gap session window
- KIP-363: Allow performance tools to print final results to output file
- KIP-366: Make FunctionConversions deprecated
- KIP-364: Remove implicit Materialized, Consumed and Produced
- KIP-365: Materialized, Serialized, Joined, Consumed and Produced with implicit Serde
- KIP-367 Introduce close(Duration) to Producer and AdminClient instead of close(long, TimeUnit)
- KIP-368: Allow SASL Connections to Periodically Re-Authenticate
- KIP-369: Alternative Partitioner to Support "Always Round-Robin" Selection
- KIP-370: Remove Orphan Partitions
- KIP-371: Add a configuration to build custom SSL principal name
- KIP-354: Time-based log compaction policy
- KIP-372: Naming Repartition Topics for Joins and Grouping
- KIP-373: Allow users to create delegation tokens for other users
- KIP-374: Add '--help' option to all available Kafka CLI commands
- KIP-375: Kafka Clients - make Metadata#TOPIC_EXPIRY_MS configurable
- KIP-376: Implement AutoClosable on appropriate classes that want to be used in a try-with-resource statement
- KIP-377: TopicCommand to use AdminClient
- KIP-378: Enable Dependency Injection for Kafka Streams handlers
- KIP-379: Multiple Consumer Group Management
- KIP-380: Detect outdated control requests and bounced brokers using broker generation
- KIP-381: Connect: Tell about records that had their offsets flushed in callback
- KIP-382: MirrorMaker 2.0
- KIP-383: Pluggable interface for SSL Factory
- KIP-384: Add config for incompatible changes to persistent metadata
- KIP-385: Avoid throwing away prefetched data
- KIP-386: Standardize on Min/Avg/Max metrics' default value
- KIP-387: Fair Message Consumption Across Partitions in KafkaConsumer
- KIP-388: Add observer interface to record request and response
- KIP-389: Introduce a configurable consumer group size limit
- KIP-390: Support Compression Level
- KIP-391: Allow Producing with Offsets for Cluster Replication [Discarded]
- KIP-392: Allow consumers to fetch from closest replica
- KIP-393: Time windowed serde to properly deserialize changelog input topic
- KIP-394: Require member.id for initial join group request
- KIP-395: Encypt-then-MAC Delegation token metadata
- KIP-396: Add Reset/List Offsets Operations to AdminClient
- KIP-397: Add methods to override fetch offsets based on timestamp
- KIP-398: Support reading trust store from classpath
- KIP-399: Extend ProductionExceptionHandler to cover serialization exceptions
- KIP-400: Improve exit status in case of errors in ConsoleProducer
- KIP-401: TransformerSupplier/ProcessorSupplier StateStore connecting
- KIP-402: Improve fairness in SocketServer processors
- KIP-403: Increase ProducerPerformance precision by using nanoTime
- KIP-404: Add Kafka Connect configuration parameter for disabling WADL output on OPTIONS request
- KIP-405: Kafka Tiered Storage
- KIP-406: GlobalStreamThread should honor custom reset policy
- KIP-407: Kafka Connect support override worker kafka api configuration with connector configuration that post by rest api
- KIP-NEXT: Add support of quota configuration in the KafkaAdminClient
- KIP-408: Add Asynchronous Processing To Kafka Streams
- KIP-409: Allow creating under-replicated topics and partitions
- KIP-410: Add metric for request handler thread pool utilization by request type
- KIP-411: Make default Kafka Connect worker task client IDs distinct
- KIP-412: Extend Admin API to support dynamic application log levels
- KIP-414: Expose Embedded ClientIds in Kafka Streams
- KIP-416: Notify SourceTask of ACK'd offsets, metadata
- KIP-415: Incremental Cooperative Rebalancing in Kafka Connect
- KIP-417: Allow JmxTool to connect to a secured RMI port
- KIP-418: A method-chaining way to branch KStream
- KIP-419: Safely notify Kafka Connect SourceTask is stopped
- KIP-420: Add Single Value Fetch in Session Stores
- KIP-706: Add method "Producer#send" to return CompletionStage instead of Future
- KIP-531: Drop support for Scala 2.11 in Kafka 2.5
- KIP-421: Automatically resolve external configurations.
- KIP-422: Add support for client quota configuration in the Kafka Admin Client
- KIP-423: Add JoinReason to Consumer Join Group Protocol
- KIP-424: Allow suppression of intermediate events based on wall clock time
- KIP-425: Add some Log4J Kafka Appender Properties for Producing to Secured Brokers
- KIP-426: Persist Broker Id to Zookeeper
- KIP-427: Add AtMinIsr topic partition category (new metric & TopicCommand option)
- KIP-428: Add in-memory window store
- KIP-429: Kafka Consumer Incremental Rebalance Protocol
- KIP-430 - Return Authorized Operations in Describe Responses
- KIP-431: Support of printing additional ConsumerRecord fields in DefaultMessageFormatter
- KIP-432: Additional Broker-Side Opt-In for Default, Unsecure SASL/OAUTHBEARER Implementation
- KIP-433: Block old clients on brokers
- KIP-434: Add Replica Fetcher and Log Cleaner Count Metrics
- KIP-435: Internal Partition Reassignment Batching
- KIP-436: Add a metric indicating start time
- KIP-437: Custom replacement for MaskField SMT
- KIP-438: Expose task, connector IDs in Connect API
- KIP-439: Cleanup built-in Store interfaces
- KIP-440: Extend Connect Converter to support headers
- KIP-441: Smooth Scaling Out for Kafka Streams
- KIP-446: Add changelog topic configuration to KTable suppress
- KIP-442: Return to default max poll interval in Streams
- KIP-443: Return to default segment.ms and segment.index.bytes in Streams repartition topics
- KIP-444: Augment metrics for Kafka Streams
- KIP-445: In-memory Session Store
- KIP-447: Producer scalability for exactly once semantics
- KIP-448: Add State Stores Unit Test Support to Kafka Streams Test Utils
- KIP-449: Add connector contexts to Connect worker logs
- KIP-450: Sliding Window Aggregations in the DSL
- KIP-451: Make TopologyTestDriver output iterable
- KIP-452: Tool to view cluster status
- KIP-454: Expansion of the ConnectClusterState interface
- KIP-455: Create an Administrative API for Replica Reassignment
- KIP-456: Helper classes to make it simpler to write test logic with TopologyTestDriver
- KIP-457: Add DISCONNECTED status to Kafka Streams
- KIP-458: Connector Client Config Override Policy
- KIP-459: Improve KafkaStreams#close
- KIP-460: Admin Leader Election RPC
- KIP-462: Use local thread id for KStreams
- KIP-463: Auto-configure non-default Serdes passed alongside the TopologyBuilder
- KIP-461 - Improve Replica Fetcher behavior at handling partition failure
- KIP-464: Defaults for AdminClient#createTopic
- KIP-465: Add Consolidated Connector Endpoint to Connect REST API
- KIP-453: Add close() method to RocksDBConfigSetter
- KIP-466: Add support for List<T> serialization and deserialization
- KIP-467: Augment ProduceResponse error messaging for specific culprit records
- KIP-468: Avoid decompression of record when validate record at server in the scene of inPlaceAssignment .
- KIP-469: Pre-registration support for static members
- KIP-470: TopologyTestDriver test input and output usability improvements
- KIP-471: Expose RocksDB Metrics in Kafka Streams
- KIP-472: [STREAMS] Add partition time field to RecordContext
- KIP-473: Enable KafkaLog4JAppender to use SASL Authentication Callback Handlers
- KIP-474: To deprecate WindowStore#put(key, value)
- KIP-475: New Metrics to Measure Number of Tasks on a Connector
- KIP-476: Add Java AdminClient Interface
- KIP-477: Add PATCH method for connector config in Connect REST API
- KIP-478 - Strongly typed Processor API
- KIP-479: Add StreamJoined config object to Join
- KIP-480: Sticky Partitioner
- KIP-481: SerDe Improvements for Connect Decimal type in JSON
- KIP-483: Add Broker Version API in Admin Client
- KIP-484: Expose metrics for group and transaction metadata loading duration
- KIP-497: Add inter-broker API to alter ISR
- KIP-482: The Kafka Protocol should Support Optional Tagged Fields
- KIP-485: Make topic optional when using through() operations in DSL
- KIP-486: Support custom way to load KeyStore and TrustStore
- KIP-487: Client-side Automatic Topic Creation on Producer
- KIP-488: Clean up Sum,Count,Total Metrics
- 489: Kafka Consumer Record Latency Metric
- KIP-490: New metric to count offsets expired without being consumed by a consumer group
- KIP-491: Preferred Leader Deprioritized List (Temporary Blacklist)
- KIP-492: Add java security providers in Kafka Security config
- KIP-494: Connect REST Endpoint to get Transformations (SMTs)
- KIP-495: Dynamically Adjust Log Levels in Connect
- KIP-496: Administrative API to delete consumer offsets
- KIP-498: Add client-side configuration for maximum response size to protect against OOM
- KIP-500: Replace ZooKeeper with a Self-Managed Metadata Quorum
- KIP-501 Avoid out-of-sync or offline partitions when follower fetch requests are not processed in time
- KIP-499 - Unify connection name flag for command line tool
- KIP-502: Connect Task Method Signature to be More Specific for Developers
- KIP-503: Add metric for number of topics marked for deletion
- KIP-504 - Add new Java Authorizer Interface
- KIP-505: Add new public method to only update assignment metadata in consumer
- KIP-506: Allow setting SCRAM password via Admin interface
- KIP-507: Securing Internal Connect REST Endpoints
- KIP-508: Make Suppression State Queriable
- KIP-509: Rebalance and restart Producers
- KIP-510: Metrics library upgrade
- KIP-511: Collect and Expose Client's Name and Version in the Brokers
- KIP-512: make Record Headers available in onAcknowledgement
- KIP-513: Distinguish between Key and Value serdes in scala wrapper library for kafka streams
- KIP-532: Broker Consumer Lag metrics in size and time
- KIP-514: Add a bounded flush() API to Kafka Producer
- KIP-515: Enable ZK client to use the new TLS supported authentication
- KIP-534: Retain tombstones and transaction markers for approximately delete.retention.ms milliseconds
- KIP-516: Topic Identifiers
- KIP-517: Add consumer metrics to observe user poll behavior
- KIP-518: Allow listing consumer groups per state
- KIP-519: Make SSL context/engine configuration extensible
- KIP-520: Add overloaded Consumer#committed for batching partitions
- KIP-521: Enable redirection of Connect's log4j messages to a file by default
- KIP-522: Update BrokerApiVersionsCommand to use AdminClient
- KIP-523: Add KStream#toTable to the Streams DSL
- KIP-524: Allow users to choose config source when describing configs
- KIP-525 - Return topic metadata and configs in CreateTopics response
- KIP-526: Reduce Producer Metadata Lookups for Large Number of Topics
- KIP-527: Add VoidSerde to Serdes
- KIP-528: Deprecate PartitionGrouper configuration and interface
- KIP-530: Consider renaming 'UsePreviousTimeOnInvalidTimeStamp' class to 'UsePartitionTimeOnInvalidTimeStamp'
- KIP-533: Add default api timeout to AdminClient
- KIP-X: Introduce a cooperative consumer processing semantic
- KIP-535: Allow state stores to serve stale reads during rebalance
- KIP-536: Propagate broker start time to Admin API
- KIP-537: Increase default zookeeper session timeout
- KIP-538: Add a metric tracking the number of open connections with a given SSL cipher type
- KIP-539: Implement mechanism to flush out records in low traffic suppression buffers
- KIP-540: Implement per key stream time tracking
- KIP-541: Create a fetch.max.bytes configuration for the broker
- KIP-542: Partition Reassignment Throttling
- KIP-543: Expand ConfigCommand's non-ZK functionality
- KIP-545: support automated consumer offset sync across clusters in MM 2.0
- KIP-XX: Decouple Kafka Streams Scalability from Physical partition
- KIP-544: Make metrics exposed via JMX configurable
- KIP-546: Add Client Quota APIs to the Admin Client
- KIP-547: Extend ConsumerInterceptor to allow modification of Consumer Commits
- KIP-548 Add Option to enforce rack-aware custom partition reassignment execution
- KIP-549: Surface Consumer's Metadata in KafkaAdminClient#describeConsumerGroups
- KIP-565: Using AclCommand,avoid call the global method loadcache in SimpleAclAuthorizer
- KIP-550: Mechanism to Delete Stray Partitions on Broker
- KIP-551: Expose disk read and write metrics
- KIP-553: Disable all SSL protocols except TLSV1.2 by default.
- KIP-555: Deprecate Direct Zookeeper access in Kafka Administrative Tools
- KIP-557: Add emit on change support for Kafka Streams
- KIP-558: Track the set of actively used topics by connectors in Kafka Connect
- KIP-559: Make the Kafka Protocol Friendlier with L7 Proxies
- KIP-560: Auto infer external topic partitions in stream reset tool
- KIP-561: Regex Support for ConsumerGroupCommand
- KIP-562: Allow fetching a key from a single partition rather than iterating over all the stores on an instance
- KIP-564: Add new cached authorizer:change the dim of cache
- KIP-563: Add 'tail -n' feature for ConsoleConsumer
- KIP-566: Add rebalance callbacks to ConsumerInterceptor
- KIP-567: Kafka Cluster Audit
- KIP-568: Support RPC message type 'double'
- KIP-DRAFT: Handle errors for data inside put method of a sink connector
- KIP-568: Explicit rebalance triggering on the Consumer
- KIP-569: DescribeConfigsResponse - Update the schema to include additional metadata information of the field
- KIP-570: Add leader epoch in StopReplicaRequest
- KIP-571: Add option to force remove members in StreamsResetter
- KIP-572: Improve timeouts and retries in Kafka Streams
- KIP-573: Enable TLSv1.3 by default
- KIP-574: CLI Dynamic Configuration with file input
- KIP-575: build a Kafka-Exporter by Java
- KIP-576: Support dynamic update of more broker configs related to replication
- KIP 577: Allow HTTP Response Headers to be Configured for Kafka Connect
- KIP-578: Add configuration to limit number of partitions
- KIP-579: new exception on min.insync.replicas > replication.factor
- KIP-580: Exponential Backoff for Kafka Clients
- KIP-581: Value of optional null field which has default value
- KIP-582: Add a "continue" option for Kafka Connect error handling
- KIP-583: add tag "partition" to BrokerTopicMetrics so as to observe the partition metrics on the same broker
- KIP-584: Versioning scheme for features
- KIP-585: Filter and Conditional SMTs
- KIP-586: Deprecate commit records without record metadata
- KIP-587: Suppress detailed responses for handled exceptions in security-sensitive environments
- KIP-588: Allow producers to recover gracefully from transaction timeouts
- KIP-590: Redirect Zookeeper Mutation Protocols to The Controller
- KIP-589 Add API to update Replica state in Controller
- KIP-591: Add Kafka Streams config to set default state store
- KIP-592: MirrorMaker 1.0 should replicate topics from earliest
- KIP-593: Enable --if-exists and --if-not-exists for AdminClient in TopicCommand
- KIP-596: Safely abort Producer transactions during application shutdown
- KIP-594: Expose output topic names from TopologyTestDriver
- KIP-595: A Raft Protocol for the Metadata Quorum
- KIP-597: MirrorMaker2 internal topics Formatters
- KIP-598: Augment TopologyDescription with store and source / sink serde information
- KIP-599: Throttle Create Topic, Create Partition and Delete Topic Operations
- KIP-601: Configurable socket connection timeout in NetworkClient
- KIP-602: Change default value for client.dns.lookup
- KIP-603: Change `ConfigEntry` value to use optional fields
- KIP-605: Expand Connect Worker Internal Topic Settings
- KIP-554: Add Broker-side SCRAM Config API
- KIP-604: Remove ZooKeeper Flags from the Administrative Tools
- KIP-606: Add Metadata Context to MetricsReporter
- KIP-608 - Expose Kafka Metrics in Authorizer
- KIP-609: Use Pre-registration and Blocking Calls for Better Transaction Efficiency
- KIP-607: Add Metrics to Kafka Streams to Report Properties of RocksDB
- KIP-610: Error Reporting in Sink Connectors
- KIP-611: Improved Handling of Abandoned Connectors and Tasks
- KIP-612: Ability to Limit Connection Creation Rate on Brokers
- KIP-614: Add Prefix Scan support for State Stores
- KIP-613: Add end-to-end latency metrics to Streams
- KIP-615: add ConstrainedCooperativeStickyAssignor
- KIP-616: Rename implicit Serdes instances in kafka-streams-scala
- KIP-617: Allow Kafka Streams State Stores to be iterated backwards
- KIP-618: Exactly-Once Support for Source Connectors
- KIP-620 Deprecate ConsumerConfig#addDeserializerToConfig and ProducerConfig#addSerializerToConfig
- KIP-619: Add internal topic creation support
- KIP-621: Deprecate and replace DescribeLogDirsResult.all() and .values()
- KIP-622: Add currentSystemTimeMs and currentStreamTimeMs to ProcessorContext
- KIP-623: Add "internal-topics" option to streams application reset tool
- KIP-624: Consolidate Offset Validation into Fetch Protocol
- KIP-625: Richer encodings for integral-typed protocol fields
- KIP-626: Rename StreamsConfig config variable name
- KIP-627: Expose Trogdor-specific JMX Metrics for Tasks and Agents
- KIP-628: ConsumerPerformance's multi-thread implementation
- KIP-629: Use racially neutral terms in our codebase
- KIP-630: Kafka Raft Snapshot
- KIP-631: The Quorum-based Kafka Controller
- KIP-634: Complementary support for headers and record metadata in Kafka Streams DSL
- KIP-636: Make RPC error codes and messages tagged fields
- KIP-637: Include min.insync.replicas in MetadataResponse to make Producer smarter in partitioning events
- KIP-638: Deprecate DescribeLogDirsResponse.[LogDirInfo, ReplicaInfo]
- KIP-639: Move nodeLevelSensor and storeLevelSensor methods from StreamsMetricsImpl to StreamsMetrics
- KIP-640: Add log compression analysis tool
- KIP-641 An new java interface to replace 'kafka.common.MessageReader'
- KIP-642: Dynamic quorum reassignment
- KIP-644: Support sources which can't give out changed data in kafka connect
- KIP-645: Replace Windows with a proper interface
- KIP-646 Serializer API should support ByteBuffer
- KIP-647: Add ability to handle late messages in streams-aggregation
- KIP-648: Renaming getter method for Interactive Queries
- KIP-649: Dynamic Client Configuration
- KIP-650: Enhance Kafkaesque Raft semantics
- KIP-656: MirrorMaker2 Exactly-once Semantics
- KIP-651 - Support PEM format for SSL certificates and private key
- KIP-653: Upgrade log4j to log4j2
- KIP-654: Aborted transaction with non-flushed data should throw a non-fatal exception
- KIP-632: Add DirectoryConfigProvider
- KIP-655: Windowed Distinct Operation for Kafka Streams API
- KIP-657: Add Customized Kafka Streams Logo
- [DISCARD] KIP-658 Deprecate all setters of Headers
- KIP-659: Improve TimeWindowedDeserializer and TimeWindowedSerde to handle window size
- KIP-660: Pluggable ReplicaPlacer
- KIP-661: Expose task configurations in Connect REST API
- KIP-662: Throw Exception when Source Topics of a Streams App are Deleted
- KIP-663: API to Start and Shut Down Stream Threads
- KIP-664: Provide tooling to detect and abort hanging transactions
- KIP-665: Kafka Connect Hash SMT
- KIP-666: Add Instant-based methods to ReadOnlySessionStore
- KIP-667: Remove deprecated methods from ReadOnlyWindowStore
- KIP-668: Expose REST endpoint to list converter plugins
- KIP-669: Preserve Source Partition in Kafka Streams from context
- KIP-670: Add ConsumerGroupCommand to delete static members
- KIP-671: Introduce Kafka Streams Specific Uncaught Exception Handler
- KIP-672: Introduce Kafka Streams Specific Uncaught Exception Handler
- KIP-673: Emit JSONs with new auto-generated schema
- KIP-674: Metric Reporter to Aggregate Metrics in Kafka Streams
- KIP-675: Convert KTable to a KStream using the previous value
- KIP-676: Respect logging hierarchy
- KIP-677: migrating Topology methods to the Builder pattern (WIP)
- KIP-679: Producer will enable the strongest delivery guarantee by default
- KIP-678: New Kafka Connect SMT for plainText => Struct(or Map) with Regex
- KIP-680: TopologyTestDriver should not require a Properties argument
- KIP-681: Rename master key in delegation token feature
- KIP-682: Connect TimestampConverter support for multiple fields and multiple input formats
- KIP-683: Add recursive support to Connect Cast and ReplaceField transforms, and support for casting complex types to either a native or JSON string
- KIP-684 - Support mutual TLS authentication on SASL_SSL listeners
- KIP-685: Loosen permission for listing reassignments
- KIP-686: API to ensure Records policy on the broker
- KIP-695: Further Improve Kafka Streams Timestamp Synchronization
- KIP-691: Enhance Transactional Producer Exception Handling
- KIP-687: Automatic Reloading of Security Store
- KIP-NEXT: Support dynamic update of delete.topic.enable config
- KIP-688: Support dynamic update of delete.topic.enable config
- KIP-698: Add Explicit User Initialization of Broker-side State to Kafka Streams
- KIP-689: Extend `StreamJoined` to allow more store configs
- KIP-690: Add additional configuration to control MirrorMaker 2 internal topics naming convention
- KIP-xxx: Cache the UpdateMetadata requests in controller
- KIP-694: Support Reducing Partitions for Topics
- KIP-692: Make AdminClient value object constructors public
- KIP-693: Client-side Circuit Breaker for Partition Write Errors
- KIP-X: Native TopK support in Kafka Streams
- KIP-696: Update Streams FSM to clarify ERROR state meaning
- KIP-697: Stricter parsing of addresses in configs
- KIP-699: Update FindCoordinator to resolve multiple Coordinators at a time
- KIP-700: Add Describe Cluster API
- KIP-701: Add--override option to bin/connect-distributed.sh
- KIP-702: The control plane needs to force the validation of requests from the controller
- KIP-703: Add a metrics for reporting idle connections closed
- KIP-704: Send a hint to the partition leader to recover the partition
- KIP-705: Selectively Disable Topology Optimizations
- KIP-707: The future of KafkaFuture
- KIP-708: Rack aware StandbyTask assignment for Kafka Streams
- KIP-709: Extend OffsetFetch requests to accept multiple group ids.
- KIP-710: Full support for distributed mode in dedicated MirrorMaker 2.0 clusters
- KIP-711 Deprecate org.apache.kafka.streams.errors.BrokerNotFoundException
- KIP-712: Shallow Mirroring
- KIP-713: Validation of Enums in configuration
- KIP-714: Client metrics and observability
- KIP-715: Expose Committed offset in streams
- KIP-716: Allow configuring the location of the offset-syncs topic with MirrorMaker2
- KIP-717: Deprecate batch-size config from console producer
- KIP-718: Make KTable Join on Foreign key unopinionated
- KIP-719: Deprecate Log4J Appender
- KIP-720: Deprecate MirrorMaker v1
- KIP-721: Enable connector log contexts in Connect Log4j configuration
- KIP-722: Enable connector client overrides by default
- KIP-723: Add socket.tcp.no.delay property to Kafka Config
- KIP-724: Drop support for message formats v0 and v1
- KIP-725: Streamlining configurations for WindowedSerializer and WindowedDeserializer.
- KIP-726: Make the "cooperative-sticky, range" as the default assignor
- KIP-727: Add --under-preferred-replica-partitions option to describe topics command
- KIP-633: Deprecate 24-hour Default Grace Period for Windowed Operations in Streams
- KIP-728: Introduce the RESTORING state to the KafkaStreams state machine
- KIP-729: Custom validation of records on the broker prior to log append
- KIP-730: Producer ID generation in KRaft mode
- KIP-731: Record Rate Limiting for Kafka Connect
- KIP-732: Deprecate eos-alpha and replace eos-beta with eos-v2
- KIP-733: change Kafka Streams default replication factor config
- KIP-734: Improve AdminClient.listOffsets to return timestamp and offset for the record with the largest timestamp
- KIP-735: Increase default consumer session timeout
- KIP-736: Report the true end to end fetch latency
- KIP-738: Removal of Connect's internal converter properties
- KIP-737: Add canTrackSource to ReplicationPolicy
- KIP-739: Block Less on KafkaProducer#send
- KIP-740: Clean up public API in TaskId
- KIP-741: Change default serde to be null
- KIP-743: Remove config value 0.10.0-2.4 of Streams built-in metrics version config
- KIP-744: Migrate TaskMetadata and ThreadMetadata to an interface with internal implementation
- KIP-751: Drop support for Scala 2.12 in Kafka 4.0 (deprecate in 3.0)
- KIP-750: Drop support for Java 8 in Kafka 4.0 (deprecate in 3.0)
- KIP-746: Revise KRaft Metadata Records
- KIP-745: Connect API to restart connector and tasks
- KIP-748: Add Broker Count Metrics
- KIP-749: Add --files and --file-separator options to the ConsoleProducer
- KIP-752: Support --bootstrap-server in ReplicaVerificationTool
- KIP-753: ACL authentication, Host field support IP network segment
- KIP-754: Make Scala case class's final
- KIP-755: Add new AUTO_CREATE ACL for auto topic creation
- KIP-756: Move StreamsResetter tool outside of core
- KIP-757: Topic metadata
- KIP-758: Remove list of latest producer append information for broker
- KIP-759: Unneeded repartition canceling
- KIP-760: Minimum value for segment.ms and segment.bytes
- KIP-761: Add Total Blocked Time Metric to Streams
- KIP-762: Delete Committed Connect Records
- KIP-763: Range queries with open endpoints
- KIP-764: Configurable backlog size for creating Acceptor
- KIP-765: Introduce new SlidingWindow type for [start,end] time
- KIP-766: fetch/findSessions queries with open endpoints for SessionStore/WindowStore
- KIP-767: Connect Latency Metrics
- KIP-768: Extend SASL/OAUTHBEARER with Support for OIDC
- KIP-769: Connect APIs to list all connector plugins and retrieve their configuration definitions
- KIP-770: Replace "buffered.records.per.partition" & "cache.max.bytes.buffering" with "{statestore.cache}/{input.buffer}.max.bytes"
- KIP-772: Encrypt KRaft Metadata Secrets at Rest
- KIP-773: Differentiate consistently metric latency measured in millis and nanos
- KIP-774: Deprecate public access to Admin client's *Result constructors
- KIP-775: Custom partitioners in foreign key joins
- KIP-776: Add Consumer#peek for debugging/tuning
- KIP-777: Improved testability for Admin client
- KIP-778: KRaft to KRaft Upgrades
- KIP-779: Allow Source Tasks to Handle Producer Exceptions
- KIP-780: Support fine-grained compression options
- KIP-781: Improve MirrorMaker2's client configuration
- KIP-782: Expandable batch size in producer
- KIP-783: Add TaskId field to StreamsException
- KIP-784: Add top-level error code field to DescribeLogDirsResponse
- KIP-785: Automatic storage formatting
- KIP-786: Emit Metric Client Quota Values
- KIP-789: Use localhost:9092 as default bootstrap-server/broker-list in client tools
- KIP-787: MM2 manage Kafka resources with custom Admin implementation.
- KIP-788: Allow configuring num.network.threads per listener
- KIP-796: Interactive Query v2
- KIP-791: Add Record Metadata to State Store Context
- KIP-792: Add "generation" field into consumer protocol
- KIP-793: Allow sink connectors to be used with topic-mutating SMTs
- KIP-794: Strictly Uniform Sticky Partitioner
- KIP-795: Add public APIs for AbstractCoordinator
- KIP-797: Accept duplicate listener on port for IPv4/IPv6
- KIP-798: Add possibility to write kafka headers in Kafka Console Producer
- KIP-799: Align behaviour for producer callbacks with documented behaviour
- KIP-800: Add reason to JoinGroupRequest and LeaveGroupRequest
- KIP-801: Implement an Authorizer that stores metadata in __cluster_metadata
- KIP-802: Validation Support for Kafka Connect SMT and Converter Options
- KIP-803: Add Task ID and Connector Name to Connect Task Context
- KIP-804: OfflinePartitionsCount Tagged by Topic
- KIP-805: Add range and scan query over kv-store in IQv2
- KIP-806: Add session and window query over kv-store in IQv2
- KIP-807: Refactor KafkaStreams exposed metadata hierarchy
- KIP-808: Add support for different unix precisions in TimestampConverter SMT
- KIP-809: Support live upgrades with dynamic addition/removal of modular topologies
- KIP-810: Allow producing records with null values in Kafka Console Producer
- KIP-NEXT: Add lowest acknowledged offset to BrokerHeartbeatResponse
- KIP-811: Add config repartition.purge.interval.ms to Kafka Streams
- KIP-812: Introduce another form of the `KafkaStreams.close()` API that forces the member to leave the consumer group
- KIP-815: Support max-timestamp in GetOffsetShell
- KIP-813: Shareable State Stores
- KIP-814: Static membership protocol should let the leader skip assignment
- KIP-816: Topology changes without local state reset
- KIP-817: Fix inconsistency in dynamic application log levels
- KIP-818: Introduce cache-size-bytes-total Task Level Metric
- KIP-819: Merge multiple KStreams in one operation
- KIP-820: Extend KStream process with new Processor API
- KIP-821: Connect Transforms support for nested structures
- KIP-822: Optimize the semantics of KafkaConsumer#pause to be consistent between the two RebalanceProtocols
- KIP-823: Update Admin::describeConfigs to allow fetching specific configurations
- KIP-824: Allowing dumping segmentlogs limiting the batches in the output
- KIP-825: introduce a new API to control when aggregated results are produced
- KIP-826: Define platforms supported
- KIP-827: Expose log dirs total and usable space via Kafka API
- KIP-828: Add the corresponding validator to the configuration where the validator is missing
- KIP-829: (console-consumer) add print.topic property
- KIP-830: Allow disabling JMX Reporter
- KIP-831: Add metric for log recovery progress
- KIP-832: Allow creating a producer/consumer using a producer/consumer config
- KIP-833: Mark KRaft as Production Ready
- KIP-834: Pause / Resume KafkaStreams Topologies
- KIP-835: Monitor KRaft Controller Quorum Health
- KIP-837: Allow MultiCasting a Result Record.
- KIP-836: Expose replication information of the cluster metadata
- [DRAFT] KIP-821: Connect Transforms support for nested structures (JsonPath-based draft)
- KIP-841: Fenced replicas should not be allowed to join the ISR in KRaft
- KIP-839: Provide builders for KafkaProducer/KafkaConsumer and KafkaStreams
- KIP-840: Config file option for MessageReader/MessageFormatter in ConsoleProducer/ConsoleConsumer
- KIP-842: Add richer group offset reset mechanisms
- KIP-843: Adding addMetricIfAbsent method to Metrics
- KIP-844: Transactional State Stores
- KIP-845: 'HasField' predicate for kafka connect
- KIP-846: Source/sink node metrics for Consumed/Produced throughput in Streams
- KIP-848: The Next Generation of the Consumer Rebalance Protocol
- KIP-847: Add ProducerIdCount metrics
- KIP-849: Expose logdirs total and usable space via kafka-log-dirs.sh
- KIP-850: REST API for filtering Connector plugins by type
- KIP-851: Add requireStable flag into ListConsumerGroupOffsetsOptions
- KIP-852: Optimize calculation of size for log in remote tier
- KIP-853: KRaft Controller Membership Changes
- KIP-854 Separate configuration for producer ID expiry
- KIP-855: Add schema.namespace parameter to SetSchemaMetadata SMT in Kafka Connect
- KIP-857: Streaming recursion in Kafka Streams
- KIP-856: KRaft Disk Failure Recovery
- KIP-858: Handle JBOD broker disk failure in KRaft
- KIP-NEXT: Insert Title Here
- KIP-859: Add Metadata Log Processing Error Related Metrics
- KIP-860: Add client-provided option to guard against replication factor change during partition reassignments
- KIP-862: Self-join optimization for stream-stream joins
- KIP-861: Add BytesIn/BytesOut per listener metrics
- KIP-863: Reduce CompletedFetch#parseRecord() memory copy
- KIP-864: Add End-To-End Latency Metrics to Connectors
- KIP-865: Support --bootstrap-server in kafka-streams-application-reset
- KIP-868 Metadata Transactions
- KIP-866 ZooKeeper to KRaft Migration
- KIP-869: Improve Streams State Restoration Visibility
- KIP-870: Retention policy based on record event time
- KIP-871: Fix ByteBufferSerializer#serialize(String, ByteBuffer) compatible problem
- KIP-872: Add Serializer#serializeToByteBuffer() to reduce memory copying
- KIP-873: ExceptionHandlingDeserializer, RetryDeserializer, PipeSerializer, PipeDeserializer
- KIP-874: TopicRoundRobinAssignor
- KIP-875: First-class offsets support in Kafka Connect
- KIP-877: Mechanism for plugins and connectors to register metrics
- KIP-876: Time based cluster metadata snapshots
- KIP-878: Internal Topic Autoscaling for Kafka Streams
- KIP-879: Multi-level Rack Awareness
- KIP-880: X509 SAN based SPIFFE URI ACL within mTLS Client Certificates
- KIP-881: Rack-aware Partition Assignment for Kafka Consumers
- KIP-882: Kafka Connect REST API configuration validation timeout improvements
- KIP-883: Add isDeleted flag when stopping a connector
- KIP-884: Add config to configure KafkaClientSupplier in Kafka Streams
- KIP-885: Expose Broker's Name and Version to Clients
- KIP-886: Add Client Producer and Consumer Builders
- KIP-887: Add ConfigProvider to make use of environment variables
- KIP-888: Batch describe ACLs and describe client quotas
- KIP-889: Versioned State Stores
- KIP-890: Transactions Server-Side Defense
- KIP-891: Running multiple versions of Connector plugins
- KIP-892: Transactional Semantics for StateStores
- KIP-893: The Kafka protocol should support nullable structs
- KIP-894: Use incrementalAlterConfigs API for syncing topic configurations
- KIP-896: Remove old client protocol API versions in Kafka 4.0
- KIP-895: Dynamically refresh partition count of __consumer_offsets
- KIP-897: Publish a single kafka (aka core) Maven artifact in Apache Kafka 4.0
- KIP-898: Modernize Connect plugin discovery
- KIP-899: Allow producer and consumer clients to rebootstrap
- KIP-900: KRaft kafka-storage.sh API additions to support SCRAM for Kafka Brokers
- KIP-901: Add connectorDeleted flag when stopping tasks
- KIP-902: Upgrade Zookeeper to 3.8.2
- KIP-903: Replicas with stale broker epoch should not be allowed to join the ISR
- KIP-904: Kafka Streams - Guarantee subtractor is called before adder if key has not changed
- KIP-905: Broker interceptors
- KIP-906: Tools migration guidelines
- KIP-907: Add Boolean Serde to public interface
- KIP-908: Add description field to connector configuration
- KIP-909: DNS Resolution Failure Should Not Fail the Clients
- KIP-911: Add source tag to MirrorSourceConnector metrics
- KIP-912: Support decreasing send's max block time without worrying about metadata's fetch
- KIP-913: add new method to provide possibility for accelerate first record's sending
- KIP-914: DSL Processor Semantics for Versioned Stores
- KIP-915: Txn and Group Coordinator Downgrade Foundation
- KIP-910: Update Source offsets for Source Connectors without producing records
- KIP-916: MM2 distributed mode flow log context
- KIP-917: Additional custom metadata for remote log segment
- KIP-918: MM2 Topic And Group Listener
- KIP-919: Allow AdminClient to Talk Directly with the KRaft Controller Quorum and add Controller Registration
- KIP-920: Support upgrading KRaft MetadataVersion based on a static config
- KIP-921: OpenJDK CRaC support
- KIP-922: Add the traffic metric of the partition dimension
- KIP-923: Add A Grace Period to Stream Table Join
- KIP-925: Rack aware task assignment in Kafka Streams
- KIP-926: introducing acks=min.insync.replicas config
- KIP-927: Improve the kafka-metadata-quorum output
- KIP-928: Making Kafka resilient to log directories becoming full
- KIP-929 : Observer Replicas
- KIP-930: Rename ambiguous Tiered Storage Metrics
- KIP-931: Flag to ignore unused message attribute field
- KIP-932: Queues for Kafka
- KIP-934: Add DeleteTopicPolicy
- KIP-935: Extend AlterConfigPolicy with existing configurations
- KIP-933: Publish metrics when source connector fails to poll data
- KIP-936: Throttle number of active PIDs
- KIP-937: Improve Message Timestamp Validation
- KIP-938: Add more metrics for measuring KRaft performance
- KIP-939: Support Participation in 2PC
- KIP-940: Broker extension point for validating record contents at produce time
- KIP-941: Range queries to accept null lower and upper bounds
- KIP-942: Add Power(ppc64le) support
- KIP-944: Support async runtimes in consumer
- KIP-943: Add independent “offset.storage.segment.bytes” for connect-distributed.properties
- KIP-945: Update threading model for Consumer
- KIP-946: Modify exceptions thrown by Consumer APIs
- KIP-947: Add support for consumer group protocol in Consumer
- KIP-948: Allow custom prefix for internal topic names in Kafka Streams
- KIP-949: Add flag to enable the usage of topic separator in MM2 DefaultReplicationPolicy
- KIP-950: Tiered Storage Disablement
- KIP-951: Leader discovery optimisations for the client
- KIP-952: Regenerate segment-aligned producer snapshots when upgrading to a Kafka version supporting Tiered Storage
- KIP-953: partition method to be overloaded to accept headers as well.
- KIP-954: expand default DSL store configuration to custom types
- KIP-924: customizable task assignment for Streams
- KIP-955: Add stream-table join on foreign key
- KIP-956 Tiered Storage Quotas
- KIP-957: Support Async runtimes
- KIP-958: Tiered Storage Metrics
- KIP-959: Add BooleanConverter to Kafka Connect
- KIP-960: Support single-key_single-timestamp interactive queries (IQv2) for versioned state stores
- KIP-962: Relax non-null key requirement in Kafka Streams
- KIP-963: Additional metrics in Tiered Storage
- KIP-964: Have visibility when produce requests become "async"
- KIP-965: Support disaster recovery between clusters by MirrorMaker
- KIP-966: Eligible Leader Replicas
- KIP-967: Support custom SSL configuration for Kafka Connect RestServer
- KIP-969: Support range interactive queries (IQv2) for versioned state stores
- KIP-968: Support single-key_multi-timestamp interactive queries (IQv2) for versioned state stores
- KIP-970: Deprecate and remove Connect's redundant task configurations endpoint
- KIP-971: Expose replication-record-lag MirrorMaker2 metric
- KIP-972: Add the metric of the current running version of kafka
- KIP-973: Expose per topic replication rate metrics
- KIP-974: Docker Image for GraalVM based Native Kafka Broker
- KIP-975: Docker Image for Apache Kafka
- KIP-976: Cluster-wide dynamic log adjustment for Kafka Connect
- KIP-977: Partition-Level Throughput Metrics
- KIP-978: Allow dynamic reloading of certificates with different DN / SANs
- KIP-979: Allow independently stop KRaft processes
- KIP-980: Allow creating connectors in a stopped state
- KIP-982: Access SslPrincipalMapper and kerberosShortNamer in Custom KafkaPrincipalBuilder
- KIP-981: Manage Connect topics with custom implementation of Admin
- KIP-983: Full speed async processing during rebalance
- KIP-984: Add pluggable compression interface to Kafka
- KIP-985: Add reverseRange and reverseAll query over kv-store in IQv2
- KIP-986: Cross-Cluster Replication
- KIP-988: Streams Standby Update Listener
- KIP-989: Improved StateStore Iterator metrics for detecting leaks
- KIP-995: Allow users to specify initial offsets while creating connectors
- KIP-987: Connect Static Assignments
- KIP-990: Capability to PAUSE Tasks on DeserializationException
- KIP-996: Pre-Vote
- KIP-991: Allow DropHeaders SMT to drop headers by wildcard/regexp
- KIP-992: Proposal to introduce IQv2 Query Types: TimestampedKeyQuery and TimestampedRangeQuery
- KIP-994: Minor Enhancements to ListTransactions and DescribeTransactions APIs
- KIP-993: Allow restricting files accessed by File and Directory ConfigProviders
- KIP-997: update WindowRangeQuery and unify WindowKeyQuery and WindowRangeQuery
- KIP-998: Give ProducerConfig(props, doLog) constructor protected access
- KIP-999: Server-side Consumer Lag Metrics
- KIP-1000: List Client Metrics Configuration Resources
- KIP-1001: Add CurrentControllerId Metric
- KIP-1002: Fetch remote segment indexes at once
- KIP-1003: Signal next segment when remote fetching
- KIP-1004: Enforce tasks.max property in Kafka Connect
- KIP-1005: Expose EarliestLocalOffset and TieredOffset
- KIP-1006: Remove SecurityManager Support
- KIP-1007: Introduce Remote Storage Not Ready Exception
- KIP-1009: Add Broker-level Throttle Configurations
- KIP-1008: ParKa - the Marriage of Parquet and Kafka
- KIP-1010: Topic Partition Quota
- KIP-1011: Use incrementalAlterConfigs when updating broker configs by kafka-configs.sh
- KIP-1012: The need for a Kafka 3.8 and 3.9 release
- KIP-1013: Drop broker and tools support for Java 11 in Kafka 4.0 (deprecate in 3.7)
- KIP-1014: Managing Unstable Features in Apache Kafka
- KIP-1015: Limit number of ssl connections in brokers
- KIP-1016 Make MM2 heartbeats topic name configurable
- KIP-1017: Health check endpoint for Kafka Connect
- KIP-1018: Introduce max remote fetch timeout config for DelayedRemoteFetch requests
- KIP-1019: Expose method to determine Metric Measurability
- KIP-1020: Move `window.size.ms` and `windowed.inner.class.serde` from `StreamsConfig` to TimeWindowedDe/Serializer and SessionWindowedDe/Serializer class
- KIP-1023: Follower fetch from tiered offset
- KIP-1021: Allow to get last stable offset (LSO) in kafka-get-offsets.sh
- KIP-1022: Formatting and Updating Features
- KIP-1024: Make the restore behavior of GlobalKTables with custom processors configureable
- KIP-1025: Optionally URL-encode clientID and clientSecret in authorization header
- KIP-1026: Handling producer snapshot when upgrading from < v2.8.0 for Tiered Storage
- KIP-1027: Add MockFixedKeyProcessorContext and TestFixedKeyRecordFactory
- KIP-1028: Docker Official Image for Apache Kafka
- KIP-1030: Change constraints and default values for various configurations
- KIP-1031: Control offset translation in MirrorSourceConnector
- KIP-1032: Upgrade to Jakarta and JavaEE 10 in Kafka 4.0
- KIP-1033: Add Kafka Streams exception handler for exceptions occurring during processing
- KIP-1034: Dead letter queue in Kafka Streams
- KIP-1035: StateStore managed changelog offsets
- KIP-1036: Extend RecordDeserializationException exception
- KIP-1037: Allow WriteTxnMarkers API with Alter Cluster Permission
- KIP-1038: Add Custom Error Handler to Producer
- KIP-1039: Disable automatic topic creation for MirrorMaker2 consumers
- KIP-1040: Improve handling of nullable values in InsertField, ExtractField, and other transformations
- KIP-1041: Drop `offsets.commit.required.acks` config in 4.0 (deprecate in 3.8)
- KIP-1042: Implementation of a GLOB Pattern type for ACL pattern matching.
- KIP-1043: Administration of groups
- KIP-1044: A proposal to change idempotent producer -- server implementation
- KIP-1045: Move MockAdminClient to public api
- KIP-1046: Expose producer.id.expiration.check.interval.ms as dynamic broker configuration
- KIP-1047 Introduce new org.apache.kafka.tools.api.Decoder to replace kafka.serializer.Decoder
- KIP-1048: Improve kafka-consumer-perf-test to benchmark single partition
- KIP-1049: Add config log.summary.interval.ms to Kafka Streams
- KIP-1050: Consistent error handling for Transactions
- KIP-1051: Statically configured log replication throttling
- KIP-1053: Align the naming convention for config and default variables in *Config classes
- KIP-1052: Enable warmup in producer performance test
- KIP-1054: Support external schemas in JSONConverter
- KIP-1055: Introducing Round-Robin Assignment Strategy to ConnectorUtils
- KIP-1056: Remove `default.` prefix for exception handler StreamsConfig
- KIP-1057: Add remote log metadata flag to the dump log tool
- KIP-1058: Txn consumer exerts pressure on remote storage when collecting aborted transactions
- KIP-1059: Enable Producer to resolve send() method errors
- KIP-1061: Allow exporting SCRAM credentials
- KIP-1062: Introduce Pagination for some requests used by Admin API
- KIP-1063: Drop inconsistent casing in Selector metrics tags
- KIP-1064: Upgrade slf4j to 2.x
- KIP-1065: Add "retry" return-option to ProductionExceptionHandler
- KIP-1066: Mechanism to cordon brokers and log directories
- KIP-1067: Remove ReplicaVerificationTool in 5.0 (deprecate in 3.9)
- KIP-1070: deprecate MockProcessorContext
- KIP-1071: Streams Rebalance Protocol
- Dormant/inactive KIPs
- Discarded KIPs
- KIP Discussion Recordings
- KIP-1072: Add @FunctionalInterface annotation to Kafka Streams SAM methods
- KIP-1074: Allow the replication of user internal topics
- KIP-1073: Return fenced brokers in DescribeCluster response
- KIP-1068: New metrics for the new KafkaConsumer
- KIP-1075: Introduce delayed remote list offsets purgatory to make LIST_OFFSETS async
- KIP-1076: Metrics for client applications KIP-714 extension
- KIP-1077: Deprecate `ForeachProcessor` and move to internal package
- KIP-1078: Remove Leaking Getter Methods in Joined Helper Class
- KIP-1079: Deprecate `delete-config` of TopicCommand
- KIP-1080: Fix the typo: `maxlifeTimeMs` in CreateDelegationTokenOptions
- KIP-1082: Require Client-Generated IDs over the ConsumerGroupHeartbeat RPC
- KIP-1083: Increase default value of task.shutdown.graceful.timeout.ms in Connect
- KIP-1081: Graduation Steps for KIPs
- KIP-1085: Fix leaking *_DOC variables in StreamsConfig
- KIP-1086: Add ability to specify a custom produce request parser.
- KIP-1087: Removing intermediateTopicsOption from StreamsResetter
- KIP-NEXT: Aaaaa
- KIP-1088: Replace KafkaClientSupplier with KafkaClientInterceptor
- KIP-1089: Allow disabling heartbeats replication in MirrorSourceConnector
- KIP-1092: Extend Consumer#close with an option to leave the group or not
- KIP-1093: Add more observability for MirrorMaker2
- KIP-1091: Improved Kafka Streams operator metrics
- KIP-1090 Flaky Test Management
- KIP-1095: Kafka Canary Isolation
- KIP-1094: Add a new constructor method with nextOffsets to ConsumerRecords
- KIP-1096: Add ability to pass headers to ProducerPerformance
- KIP-1097: Error record reporter in Connect
- KIP-1098: Reverse Checkpointing in MirrorMaker
- KIP-1099: Extend kafka-consumer-groups command line tool to support new consumer group
- KIP-1100: Consider renaming org.apache.kafka.server:type=AssignmentsManager
- KIP-1101: Trigger rebalance on rack topology changes
- KIP-1102: Enable clients to rebootstrap based on timeout or error code
- KIP-1103: Additional metrics for cooperative consumption
- KIP-1104: Allow Foreign Key Extraction from Both Key and Value in KTable Joins
- KIP-1140: Avoid to return null value in Map from public api of consumer
- KIP-1105: Make remote log manager thread-pool configs dynamic
- KIP-1106: Add duration based offset reset option for consumer clients
- KIP-1107: Adding topic-level acks and compressions for producers
- KIP-1108: Publish metrics for skipped records in Kafka Connect
- KIP-1109: Unifying Kafka Consumer Topic Metrics
- KIP-1110: Metadata of sensitive configuration
- KIP-1111: Enforcing Explicit Naming for Kafka Streams Internal Topics
- KIP-1112: allow custom processor wrapping
- KIP-1113: Enhancements to Rack-Aware Partition Assignor for Improved Client-Side Independence and Load Balancing
- KIP-1114: Introducing Chunk in Partition
- KIP-1115: Bazel Builds
- KIP-1116: Adding new Principal Types on Standard ACL side for filtering KafkaPrincipal
- KIP-1117: Support keystore with multiple alias entries
- KIP-1118: Add Deadlock Protection on Producer Network Thread
- KIP-1119: Add support for SSL hot reload
- KIP-1120: AppInfo metrics don't contain the client-id
- KIP-1121: Compression acceleration in Kafka
- KIP-1122: Create a dedicated data module for Kafka Connect data classes
- KIP-1123: Rack-aware partitioning for Kafka Producer
- KIP-1124: Providing a clear Kafka Client upgrade path for 4.x
- KIP-1125: Remove Invalid 'numberOfOpenFiles' Metric from RocksDB State Store
- KIP-1126 Add progress metric for log loading during Kafka broker startup
- KIP-1126: Serialize changes to Kafka with a build queue
- KIP-1127 Flexible Windows for Late Arriving Data
- KIP-1128: Replace KTable.transformValues with KTable.processValues
- KIP-1129: Update ConfigException constructors
- KIP-1131: Improved controller-side monitoring of broker states
- KIP-1130: Add metrics indicating the connection count exceeds
- KIP-1132: KRaft servers support invalid static SocketServer configurations
- KIP-1133: AK Documentation and Website in Markdown
- KIP-1139: Add support for OAuth jwt-bearer grant type
- KIP-1134: Virtual Clusters in Kafka
- KIP-1135: Deprecated "org.apache.kafka.disallowed.login.modules"
- KIP-1136: Make ConsumerGroupMetadata an interface
- KIP-1137: Standardize Property Loading Priority
- KIP-1138: Clean up TopologyConfig and API for supplying configs needed by the topology
- KIP-1141: Simplifying MetadataQuorumCommand by Leveraging Admin API for Controller Management
- KIP-1142: Allow to list non-existent group which has dynamic config
- KIP-1145: Kafka Streams `CloseOptions` should not have a public constructor
- KIP-1144: Exposing a new public REST API for MirrorMaker 2
- KIP-1146: Anchored wall-clock punctuation
- KIP-1147: Improve consistency of command-line arguments
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