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Release Dates
- KIP Freeze: Sep 25, 2019 (a KIP must be accepted by this date in order to be considered for this release)
- Feature Freeze: Oct 4, 2019 (major features merged & working on stabilization, minor features have PR, release branch cut; anything not in this state will be automatically moved to the next release in JIRA)
- Code Freeze: Oct 16, 2019
- Release: Oct 30, 2019
These dates are goals and subject to change, but we expect to stay on the Time Based Release Plan unless unexpected critical issues come up. While the target release date is fixed at ~2w after code freeze, RCs will roll out as needed until the release vote passes.
The release manager is Manikumar Reddy O.
Release Features
This is a list of all the features/improvements/bugfixes that we can include with release :
- KIP-213: Support non-key joining in KTable
- KIP-307: Allow to define custom processor names with KStreams DSL
- KIP-309: Add toUpperCase support to sasl.kerberos.principal.to.local rule
- KIP-369: Alternative Partitioner to Support "Always Round-Robin" Selection
- KIP-379: Multiple Consumer Group Management
- KIP-382: MirrorMaker 2.0
- KIP-392: Allow consumers to fetch from closest replica
- KIP-412: Extend Admin API to support dynamic application log levels
- KIP-429: Kafka Consumer Incremental Rebalance Protocol (Partially implemented)
- KIP-434: Add Replica Fetcher and Log Cleaner Count Metrics
- KIP-440: Extend Connect Converter to support headers
- KIP-444: Augment metrics for Kafka Stream (Partially Implemented)
- KIP-455: Admin API for Replica Reassignment (Partially implemented)
- KIP-460: Admin Leader Election RPC
- KIP-464: Defaults for AdminClient#createTopic
- KIP-467: Augment ProduceResponse error messaging for specific culprit records (Partially implemented)
- KIP-470: TopologyTestDriver test input and output usability improvements
-
- KIP-474: To deprecate WindowStore#put(key, value)
- KIP-475: New Metrics to Measure Number of Tasks on a Connector
- KIP-479: Add StreamJoined config object to Join
- KIP-480: Sticky Partitioner
- KIP-481: SerDe Improvements for Connect Decimal type in JSON
- KIP-482: The Kafka Protocol should Support Optional Fields
- KIP-484: Expose metrics for group and transaction metadata loading duration
- KIP-488: Clean up Sum,Count,Total Metrics
- KIP-492: Add java security providers in Kafka Security config
- KIP-495: Dynamically Adjust Log Levels in Connect
- KIP-496: Administrative API to delete consumer offsets
- KIP-503: Add metric for number of topics marked for deletion
- KIP-504: Add new Java Authorizer Interface
- KIP-525: Return topic metadata and configs in CreateTopics response
- KIP-507: Securing Internal Connect REST Endpoints
- KIP-511: Collect and Expose Client's Name and Version in the Brokers (Partially implemented)
- KIP-521: Enable redirection of Connect's log4j messages to a file by default
- KIP-528: Deprecate PartitionGrouper configuration and interface
How to Contribute
Before code freeze:
- Participate in votes and discussions to land or postpone the open KIPs.
- Review patches. We anticipate that this release will be bottlenecked mostly on reviews. The more reviewers, the more content we can fit in.
- Write unit/integration/system tests. We want to preserve the tradition of high-quality releases in Apache Kafka.
After code freeze:
- Write more unit/integration/system tests. We want to preserve the tradition of high-quality releases in Apache Kafka.
- Improve documentation
- Test the release candidates
- Open blocker JIRAs on critical issues found. Open non-blocker JIRAs on any other issues found.
- Fix critical bugs
- Review bug fixes
- Vote on RCs. Even though only PMC votes are binding, community votes are super important as we evaluate the readiness of the release
Open Issues
key |
summary |
type |
created |
updated |
due |
assignee |
reporter |
priority |
status |
resolution |
JQL and issue key arguments for this macro require at least one Jira application link to be configured
|
Also feel free to refer to this release page for more details of the included tickets.
Planned KIP Content
Note: The planned content is not binding - final content will be based the features committed by branch-cutting date. See Kafka Improvement Proposals for the full list of KIPs.
KIP | JIRA | Component |
---|
KIP-528: Deprecate PartitionGrouper configuration and interface |
Unable to render Jira issues macro, execution error.
| Streams |
KIP-525 - Return topic metadata and configs in CreateTopics response |
Unable to render Jira issues macro, execution error.
| Core |
KIP-521: Enable redirection of Connect's log4j messages to a file by default |
Unable to render Jira issues macro, execution error.
| Connect |
KIP-517: Add consumer metrics to observe user poll behavior |
Unable to render Jira issues macro, execution error.
| Clients |
KIP-511: Collect and Expose Client's Name and Version in the Brokers |
Unable to render Jira issues macro, execution error.
| Core (Partially implemented) |
KIP-507: Securing Internal Connect REST Endpoints |
Unable to render Jira issues macro, execution error.
| Connect |
KIP-504 - Add new Java Authorizer Interface |
Unable to render Jira issues macro, execution error.
| Core |
KIP-503: Add metric for number of topics marked for deletion |
Unable to render Jira issues macro, execution error.
| Core |
KIP-496: Administrative API to delete consumer offsets |
Unable to render Jira issues macro, execution error.
| Core |
KIP-495: Dynamically Adjust Log Levels in Connect |
Unable to render Jira issues macro, execution error.
| Connect |
KIP-492: Add java security providers in Kafka Security config |
Unable to render Jira issues macro, execution error.
| Core |
KIP-488: Clean up Sum,Count,Total Metrics |
Unable to render Jira issues macro, execution error.
| Clients |
KIP-484: Expose metrics for group and transaction metadata loading duration |
Unable to render Jira issues macro, execution error.
| Clients |
KIP-482: The Kafka Protocol should Support Optional Tagged Fields |
Unable to render Jira issues macro, execution error.
| Core |
KIP-481: SerDe Improvements for Connect Decimal type in JSON |
Unable to render Jira issues macro, execution error.
| Connect |
KIP-480: Sticky Partitioner |
Unable to render Jira issues macro, execution error.
| Clients |
KIP-479: Add Materialized to Join |
Unable to render Jira issues macro, execution error.
| Streams |
KIP-476: Add Java AdminClient Interface |
Unable to render Jira issues macro, execution error.
| Clients |
KIP-475: New Metrics to Measure Number of Tasks on a Connector |
Unable to render Jira issues macro, execution error.
| Connect |
KIP-474: To deprecate WindowStore#put(key, value) |
Unable to render Jira issues macro, execution error.
| Streams |
KIP-471: Expose RocksDB Metrics in Kafka Streams |
Unable to render Jira issues macro, execution error.
| Streams (Partially implemented) |
KIP-470: TopologyTestDriver test input and output usability improvements |
Unable to render Jira issues macro, execution error.
| Streams |
KIP-467: Augment ProduceResponse error messaging for specific culprit records |
Unable to render Jira issues macro, execution error.
| Clients (Partially implemented) |
KIP-464: Defaults for AdminClient#createTopic |
Unable to render Jira issues macro, execution error.
| Clients |
KIP-460: Admin Leader Election RPC |
Unable to render Jira issues macro, execution error.
| Clients/Core |
KIP-455: Create an Administrative API for Replica Reassignment |
Unable to render Jira issues macro, execution error.
| Clients/Core (Partially implemented) |
KIP-444: Augment metrics for Kafka Streams |
| Streams (Partially implemented) |
KIP-440: Extend Connect Converter to support headers |
Unable to render Jira issues macro, execution error.
| Connect |
KIP-434: Add Replica Fetcher and Log Cleaner Count Metrics |
Unable to render Jira issues macro, execution error.
| Core |
KIP-429: Kafka Consumer Incremental Rebalance Protocol |
Unable to render Jira issues macro, execution error.
| Clients (Partially implemented) |
KIP-412: Extend Admin API to support dynamic application log levels |
Unable to render Jira issues macro, execution error.
| Core/Clients |
KIP-392: Allow consumers to fetch from closest replica |
Unable to render Jira issues macro, execution error.
| Core |
KIP-382: MirrorMaker 2.0 |
Unable to render Jira issues macro, execution error.
| Core |
KIP-379: Multiple Consumer Group Management |
Unable to render Jira issues macro, execution error.
| Clients |
KIP-369: Alternative Partitioner to Support "Always Round-Robin" Selection |
Unable to render Jira issues macro, execution error.
| Clients |
KIP-352: Distinguish URPs caused by reassignment |
Unable to render Jira issues macro, execution error.
| Core |
KIP-309: Add toUpperCase support to sasl.kerberos.principal.to.local rule |
Unable to render Jira issues macro, execution error.
| Core |
KIP-307: Allow to define custom processor names with KStreams DSL |
Unable to render Jira issues macro, execution error.
| Streams |
KIP-213 Support non-key joining in KTable |
Unable to render Jira issues macro, execution error.
| Streams |
Postponed to subsequent release