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324 lines
15 KiB
324 lines
15 KiB
8 years ago
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# Changelog
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#### Version 1.10.1 (2016-08-30)
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Bug Fixes:
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- Fix the documentation for `HashPartitioner` which was incorrect
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([#717](https://github.com/Shopify/sarama/pull/717)).
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- Permit client creation even when it is limited by ACLs
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([#722](https://github.com/Shopify/sarama/pull/722)).
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- Several fixes to the consumer timer optimization code, regressions introduced
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in v1.10.0. Go's timers are finicky
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([#730](https://github.com/Shopify/sarama/pull/730),
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[#733](https://github.com/Shopify/sarama/pull/733),
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[#734](https://github.com/Shopify/sarama/pull/734)).
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- Handle consuming compressed relative offsets with Kafka 0.10
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([#735](https://github.com/Shopify/sarama/pull/735)).
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#### Version 1.10.0 (2016-08-02)
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_Important:_ As of Sarama 1.10 it is necessary to tell Sarama the version of
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Kafka you are running against (via the `config.Version` value) in order to use
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features that may not be compatible with old Kafka versions. If you don't
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specify this value it will default to 0.8.2 (the minimum supported), and trying
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to use more recent features (like the offset manager) will fail with an error.
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_Also:_ The offset-manager's behaviour has been changed to match the upstream
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java consumer (see [#705](https://github.com/Shopify/sarama/pull/705) and
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[#713](https://github.com/Shopify/sarama/pull/713)). If you use the
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offset-manager, please ensure that you are committing one *greater* than the
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last consumed message offset or else you may end up consuming duplicate
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messages.
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New Features:
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- Support for Kafka 0.10
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([#672](https://github.com/Shopify/sarama/pull/672),
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[#678](https://github.com/Shopify/sarama/pull/678),
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[#681](https://github.com/Shopify/sarama/pull/681), and others).
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- Support for configuring the target Kafka version
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([#676](https://github.com/Shopify/sarama/pull/676)).
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- Batch producing support in the SyncProducer
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([#677](https://github.com/Shopify/sarama/pull/677)).
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- Extend producer mock to allow setting expectations on message contents
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([#667](https://github.com/Shopify/sarama/pull/667)).
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Improvements:
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- Support `nil` compressed messages for deleting in compacted topics
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([#634](https://github.com/Shopify/sarama/pull/634)).
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- Pre-allocate decoding errors, greatly reducing heap usage and GC time against
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misbehaving brokers ([#690](https://github.com/Shopify/sarama/pull/690)).
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- Re-use consumer expiry timers, removing one allocation per consumed message
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([#707](https://github.com/Shopify/sarama/pull/707)).
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Bug Fixes:
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- Actually default the client ID to "sarama" like we say we do
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([#664](https://github.com/Shopify/sarama/pull/664)).
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- Fix a rare issue where `Client.Leader` could return the wrong error
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([#685](https://github.com/Shopify/sarama/pull/685)).
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- Fix a possible tight loop in the consumer
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([#693](https://github.com/Shopify/sarama/pull/693)).
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- Match upstream's offset-tracking behaviour
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([#705](https://github.com/Shopify/sarama/pull/705)).
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- Report UnknownTopicOrPartition errors from the offset manager
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([#706](https://github.com/Shopify/sarama/pull/706)).
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- Fix possible negative partition value from the HashPartitioner
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([#709](https://github.com/Shopify/sarama/pull/709)).
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#### Version 1.9.0 (2016-05-16)
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New Features:
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- Add support for custom offset manager retention durations
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([#602](https://github.com/Shopify/sarama/pull/602)).
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- Publish low-level mocks to enable testing of third-party producer/consumer
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implementations ([#570](https://github.com/Shopify/sarama/pull/570)).
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- Declare support for Golang 1.6
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([#611](https://github.com/Shopify/sarama/pull/611)).
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- Support for SASL plain-text auth
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([#648](https://github.com/Shopify/sarama/pull/648)).
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Improvements:
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- Simplified broker locking scheme slightly
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([#604](https://github.com/Shopify/sarama/pull/604)).
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- Documentation cleanup
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([#605](https://github.com/Shopify/sarama/pull/605),
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[#621](https://github.com/Shopify/sarama/pull/621),
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[#654](https://github.com/Shopify/sarama/pull/654)).
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Bug Fixes:
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- Fix race condition shutting down the OffsetManager
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([#658](https://github.com/Shopify/sarama/pull/658)).
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#### Version 1.8.0 (2016-02-01)
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New Features:
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- Full support for Kafka 0.9:
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- All protocol messages and fields
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([#586](https://github.com/Shopify/sarama/pull/586),
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[#588](https://github.com/Shopify/sarama/pull/588),
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[#590](https://github.com/Shopify/sarama/pull/590)).
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- Verified that TLS support works
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([#581](https://github.com/Shopify/sarama/pull/581)).
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- Fixed the OffsetManager compatibility
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([#585](https://github.com/Shopify/sarama/pull/585)).
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Improvements:
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- Optimize for fewer system calls when reading from the network
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([#584](https://github.com/Shopify/sarama/pull/584)).
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- Automatically retry `InvalidMessage` errors to match upstream behaviour
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([#589](https://github.com/Shopify/sarama/pull/589)).
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#### Version 1.7.0 (2015-12-11)
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New Features:
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- Preliminary support for Kafka 0.9
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([#572](https://github.com/Shopify/sarama/pull/572)). This comes with several
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caveats:
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- Protocol-layer support is mostly in place
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([#577](https://github.com/Shopify/sarama/pull/577)), however Kafka 0.9
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renamed some messages and fields, which we did not in order to preserve API
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compatibility.
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- The producer and consumer work against 0.9, but the offset manager does
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not ([#573](https://github.com/Shopify/sarama/pull/573)).
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- TLS support may or may not work
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([#581](https://github.com/Shopify/sarama/pull/581)).
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Improvements:
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- Don't wait for request timeouts on dead brokers, greatly speeding recovery
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when the TCP connection is left hanging
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([#548](https://github.com/Shopify/sarama/pull/548)).
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- Refactored part of the producer. The new version provides a much more elegant
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solution to [#449](https://github.com/Shopify/sarama/pull/449). It is also
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slightly more efficient, and much more precise in calculating batch sizes
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when compression is used
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([#549](https://github.com/Shopify/sarama/pull/549),
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[#550](https://github.com/Shopify/sarama/pull/550),
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[#551](https://github.com/Shopify/sarama/pull/551)).
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Bug Fixes:
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- Fix race condition in consumer test mock
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([#553](https://github.com/Shopify/sarama/pull/553)).
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#### Version 1.6.1 (2015-09-25)
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Bug Fixes:
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- Fix panic that could occur if a user-supplied message value failed to encode
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([#449](https://github.com/Shopify/sarama/pull/449)).
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#### Version 1.6.0 (2015-09-04)
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New Features:
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- Implementation of a consumer offset manager using the APIs introduced in
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Kafka 0.8.2. The API is designed mainly for integration into a future
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high-level consumer, not for direct use, although it is *possible* to use it
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directly.
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([#461](https://github.com/Shopify/sarama/pull/461)).
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Improvements:
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- CRC32 calculation is much faster on machines with SSE4.2 instructions,
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removing a major hotspot from most profiles
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([#255](https://github.com/Shopify/sarama/pull/255)).
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Bug Fixes:
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- Make protocol decoding more robust against some malformed packets generated
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by go-fuzz ([#523](https://github.com/Shopify/sarama/pull/523),
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[#525](https://github.com/Shopify/sarama/pull/525)) or found in other ways
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([#528](https://github.com/Shopify/sarama/pull/528)).
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- Fix a potential race condition panic in the consumer on shutdown
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([#529](https://github.com/Shopify/sarama/pull/529)).
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#### Version 1.5.0 (2015-08-17)
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New Features:
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- TLS-encrypted network connections are now supported. This feature is subject
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to change when Kafka releases built-in TLS support, but for now this is
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enough to work with TLS-terminating proxies
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([#154](https://github.com/Shopify/sarama/pull/154)).
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Improvements:
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- The consumer will not block if a single partition is not drained by the user;
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all other partitions will continue to consume normally
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([#485](https://github.com/Shopify/sarama/pull/485)).
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- Formatting of error strings has been much improved
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([#495](https://github.com/Shopify/sarama/pull/495)).
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- Internal refactoring of the producer for code cleanliness and to enable
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future work ([#300](https://github.com/Shopify/sarama/pull/300)).
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Bug Fixes:
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- Fix a potential deadlock in the consumer on shutdown
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([#475](https://github.com/Shopify/sarama/pull/475)).
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#### Version 1.4.3 (2015-07-21)
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Bug Fixes:
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- Don't include the partitioner in the producer's "fetch partitions"
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circuit-breaker ([#466](https://github.com/Shopify/sarama/pull/466)).
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- Don't retry messages until the broker is closed when abandoning a broker in
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the producer ([#468](https://github.com/Shopify/sarama/pull/468)).
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- Update the import path for snappy-go, it has moved again and the API has
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changed slightly ([#486](https://github.com/Shopify/sarama/pull/486)).
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#### Version 1.4.2 (2015-05-27)
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Bug Fixes:
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- Update the import path for snappy-go, it has moved from google code to github
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([#456](https://github.com/Shopify/sarama/pull/456)).
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#### Version 1.4.1 (2015-05-25)
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Improvements:
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- Optimizations when decoding snappy messages, thanks to John Potocny
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([#446](https://github.com/Shopify/sarama/pull/446)).
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Bug Fixes:
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- Fix hypothetical race conditions on producer shutdown
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([#450](https://github.com/Shopify/sarama/pull/450),
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[#451](https://github.com/Shopify/sarama/pull/451)).
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#### Version 1.4.0 (2015-05-01)
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New Features:
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- The consumer now implements `Topics()` and `Partitions()` methods to enable
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users to dynamically choose what topics/partitions to consume without
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instantiating a full client
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([#431](https://github.com/Shopify/sarama/pull/431)).
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- The partition-consumer now exposes the high water mark offset value returned
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by the broker via the `HighWaterMarkOffset()` method ([#339](https://github.com/Shopify/sarama/pull/339)).
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- Added a `kafka-console-consumer` tool capable of handling multiple
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partitions, and deprecated the now-obsolete `kafka-console-partitionConsumer`
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([#439](https://github.com/Shopify/sarama/pull/439),
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[#442](https://github.com/Shopify/sarama/pull/442)).
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Improvements:
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- The producer's logging during retry scenarios is more consistent, more
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useful, and slightly less verbose
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([#429](https://github.com/Shopify/sarama/pull/429)).
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- The client now shuffles its initial list of seed brokers in order to prevent
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thundering herd on the first broker in the list
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([#441](https://github.com/Shopify/sarama/pull/441)).
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Bug Fixes:
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- The producer now correctly manages its state if retries occur when it is
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shutting down, fixing several instances of confusing behaviour and at least
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one potential deadlock ([#419](https://github.com/Shopify/sarama/pull/419)).
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- The consumer now handles messages for different partitions asynchronously,
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making it much more resilient to specific user code ordering
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([#325](https://github.com/Shopify/sarama/pull/325)).
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#### Version 1.3.0 (2015-04-16)
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New Features:
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- The client now tracks consumer group coordinators using
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ConsumerMetadataRequests similar to how it tracks partition leadership using
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regular MetadataRequests ([#411](https://github.com/Shopify/sarama/pull/411)).
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This adds two methods to the client API:
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- `Coordinator(consumerGroup string) (*Broker, error)`
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- `RefreshCoordinator(consumerGroup string) error`
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Improvements:
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- ConsumerMetadataResponses now automatically create a Broker object out of the
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ID/address/port combination for the Coordinator; accessing the fields
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individually has been deprecated
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([#413](https://github.com/Shopify/sarama/pull/413)).
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- Much improved handling of `OffsetOutOfRange` errors in the consumer.
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Consumers will fail to start if the provided offset is out of range
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([#418](https://github.com/Shopify/sarama/pull/418))
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and they will automatically shut down if the offset falls out of range
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([#424](https://github.com/Shopify/sarama/pull/424)).
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- Small performance improvement in encoding and decoding protocol messages
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([#427](https://github.com/Shopify/sarama/pull/427)).
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Bug Fixes:
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- Fix a rare race condition in the client's background metadata refresher if
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it happens to be activated while the client is being closed
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([#422](https://github.com/Shopify/sarama/pull/422)).
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#### Version 1.2.0 (2015-04-07)
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Improvements:
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- The producer's behaviour when `Flush.Frequency` is set is now more intuitive
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([#389](https://github.com/Shopify/sarama/pull/389)).
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- The producer is now somewhat more memory-efficient during and after retrying
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messages due to an improved queue implementation
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([#396](https://github.com/Shopify/sarama/pull/396)).
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- The consumer produces much more useful logging output when leadership
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changes ([#385](https://github.com/Shopify/sarama/pull/385)).
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- The client's `GetOffset` method will now automatically refresh metadata and
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retry once in the event of stale information or similar
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([#394](https://github.com/Shopify/sarama/pull/394)).
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- Broker connections now have support for using TCP keepalives
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([#407](https://github.com/Shopify/sarama/issues/407)).
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Bug Fixes:
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- The OffsetCommitRequest message now correctly implements all three possible
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API versions ([#390](https://github.com/Shopify/sarama/pull/390),
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[#400](https://github.com/Shopify/sarama/pull/400)).
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#### Version 1.1.0 (2015-03-20)
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Improvements:
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- Wrap the producer's partitioner call in a circuit-breaker so that repeatedly
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broken topics don't choke throughput
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([#373](https://github.com/Shopify/sarama/pull/373)).
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Bug Fixes:
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- Fix the producer's internal reference counting in certain unusual scenarios
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([#367](https://github.com/Shopify/sarama/pull/367)).
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- Fix the consumer's internal reference counting in certain unusual scenarios
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([#369](https://github.com/Shopify/sarama/pull/369)).
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- Fix a condition where the producer's internal control messages could have
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gotten stuck ([#368](https://github.com/Shopify/sarama/pull/368)).
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- Fix an issue where invalid partition lists would be cached when asking for
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metadata for a non-existant topic ([#372](https://github.com/Shopify/sarama/pull/372)).
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#### Version 1.0.0 (2015-03-17)
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Version 1.0.0 is the first tagged version, and is almost a complete rewrite. The primary differences with previous untagged versions are:
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- The producer has been rewritten; there is now a `SyncProducer` with a blocking API, and an `AsyncProducer` that is non-blocking.
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- The consumer has been rewritten to only open one connection per broker instead of one connection per partition.
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- The main types of Sarama are now interfaces to make depedency injection easy; mock implementations for `Consumer`, `SyncProducer` and `AsyncProducer` are provided in the `github.com/Shopify/sarama/mocks` package.
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- For most uses cases, it is no longer necessary to open a `Client`; this will be done for you.
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- All the configuration values have been unified in the `Config` struct.
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- Much improved test suite.
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