Release Dates
- Feature Freeze: Jan 13, 2017 (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: Jan 27, 2017 (first RC created now)
- Release: Feb 14, 2017 ♥
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.
Release Manager
The release manager is Ewen Cheslack-Postava
Release Features
This is a list of key features/improvements/bugfixes that we can include with release notes:
- Session windows in Kafka Streams (KIP-94)
- Improved compatibility for Java clients (compatible with older brokers in addition to brokers supporting older client versions, KIP-97)
- Dynamic JAAS configuration – multiple client auth per process, KIP-85
- More intuitive Kafka Streams join semantics (KIP-77)
- Avoid flushing pipeline in sink connectors (KIP-89)
How to Contribute
Before Jan 27:
- 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 system tests. We want to preserve the tradition of high-quality releases in Apache Kafka.
After Jan 27:
- Test the release candidates
- Open bugs on important issues found
- Fix 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
Planned KIP Content
Note: The planned content is not binding - final content will be based the features committed by branch-cutting date.
| KIP | JIRA | Status | Component | Committer |
|---|---|---|---|---|
| KIP-66: Single Message Transforms for Kafka Connect | KAFKA-3209 - Getting issue details... STATUS | Committed (with some minor follow up outstanding) | Connect | Ewen Cheslack-Postava |
| KIP-77: Improve Kafka Streams Join Semantics | KAFKA-4001 - Getting issue details... STATUS | Committed | Streams | Guozhang Wang |
| KIP-84: Support SASL SCRAM mechanisms | KAFKA-3751 - Getting issue details... STATUS | Committed | Common/Clients/Broker | |
| KIP-85: Dynamic JAAS configuration for Kafka clients | KAFKA-4259 - Getting issue details... STATUS | Committed | Clients | Ismael Juma |
| KIP-88: OffsetFetch Protocol Update | KAFKA-3853 - Getting issue details... STATUS | Committed | Clients/Broker | Ewen Cheslack-Postava |
| KIP-89: Allow sink connectors to decouple flush and offset commit | KAFKA-4161 - Getting issue details... STATUS | Committed | Connect | Ewen Cheslack-Postava |
| KIP-90 - Remove zkClient dependency from Streams | KAFKA-4060 - Getting issue details... STATUS | Committed | Streams | Guozhang Wang |
| KIP-92 - Add per partition lag metrics to KafkaConsumer | KAFKA-4381 - Getting issue details... STATUS | Committed | Consumer | Ewen Cheslack-Postava |
| KIP-93: Improve invalid timestamp handling in Kafka Streams | KAFKA-4393 - Getting issue details... STATUS | Committed | Streams | Guozhang Wang |
| KIP-94 Session Windows | KAFKA-3452 - Getting issue details... STATUS | Committed | Streams | Guozhang Wang |
| KIP-96 - Add per partition metrics for in-sync and assigned replica count | KAFKA-4458 - Getting issue details... STATUS | Committed | Broker | Ismael Juma |
| KIP-97: Improved Kafka Client RPC Compatibility Policy | KAFKA-4462 - Getting issue details... STATUS
| Committed | Clients | Ismael Juma |
| KIP-99: Add Global Tables to Kafka Streams | KAFKA-4490 - Getting issue details... STATUS | Committed | Streams | Guozhang Wang |
| KIP-100 - Relax Type constraints in Kafka Streams API | KAFKA-4481 - Getting issue details... STATUS | Committed | Streams | Guozhang Wang |
| KIP-102 - Add close with timeout for consumers | KAFKA-4426 - Getting issue details... STATUS | Committed | Consumer | Jason Gustafson |
| KIP-103: Separation of Internal and External traffic | KAFKA-4565 - Getting issue details... STATUS KAFKA-4636 - Getting issue details... STATUS KAFKA-4637 - Getting issue details... STATUS | Main functionality committed. KAFKA-4636 & KAFKA-4637 pushed to subsequent release. | Broker | Jason Gustafson |
| KIP-104: Granular Sensors for Streams | KAFKA-3715 - Getting issue details... STATUS | Committed | Streams | Guozhang Wang |
| KIP-105: Addition of Recording Level for Sensors | KAFKA-3715 - Getting issue details... STATUS | Committed | Streams | Guozhang Wang |
| KIP-108: Create Topic Policy | KAFKA-4591 - Getting issue details... STATUS | Committed | Broker | Jason Gustafson |
KIPs Bumped to Next Release
| KIP | JIRA | Status | Component | Committer |
|---|---|---|---|---|
| KIP-72: Allow putting a bound on memory consumed by Incoming requests | KAFKA-4602 - Getting issue details... STATUS | Patch Available | Broker | Ewen Cheslack-Postava |