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Changelog

Changes and additions to the library will be listed here.

Unreleased

  • Add client methods to manage configs (#759)

0.7.10

  • Fix logger again (#762)

0.7.9

  • Fix SSL authentication for ruby < 2.4.0 (#742)
  • Add metrics for prometheus/client (#739)
  • Do not add nil message entries when ignoring old messages (#746)
  • Scram authentication thread save (#743)

0.7.8

  • Optionally verify hostname on SSL certs (#733)

0.7.7

  • Producer send offsets in transaction (#723)
  • Support zstd compression (#724)
  • Verify SSL Certificates (#730)

0.7.6

  • Introduce regex matching in Consumer#subscribe (#700)
  • Only rejoin group on error if we're not in shutdown mode (#711)
  • Use maxTimestamp for logAppendTime timestamps (#706)
  • Async producer limit number of retries (#708)
  • Support SASL OAuthBearer Authentication (#710)

0.7.5

  • Distribute partitions across consumer groups when there are few partitions per topic (#681)
  • Fix an issue where a consumer would fail to fetch any messages (#689)
  • Instrumentation for heartbeat event
  • Synchronously stop the fetcher to prevent race condition when processing commands
  • Instrument batch fetching (#694)

0.7.4

  • Fix wrong encoding calculation that leads to message corruption (#682, #680).
  • Change the log level of the 'Committing offsets' message to debug (#640).
  • Avoid Ruby warnings about unused vars (#679).
  • Synchronously commit offsets after HeartbeatError (#676).
  • Discard messages that were fetched under a previous consumer group generation (#665).
  • Support specifying an ssl client certificates key passphrase (#667).

0.7.3

  • Synchronize access to @worker_thread and @timer_thread in AsyncProducer to prevent creating multiple threads (#661).

0.7.2

  • Handle case when paused partition does not belong to group on resume (#656).
  • Fix compatibility version in documentation (#651).
  • Fix message set backward compatible (#648).
  • Refresh metadata on connection error when listing topics (#644).

0.7.1

  • Compatibility with dogstatsd-ruby v4.0.0.
  • Fix consuming duplication due to redundant messages returned from Kafka (#636).
  • Fresh cluster info on fetch error (#641).
  • Exactly Once Delivery and Transactional Messaging Support (#608).
  • Support extra client certificates in the SSL Context when authenticating with Kafka (#633).

0.7.0

  • Drop support for Kafka 0.10 in favor of native support for Kafka 0.11.
  • Support record headers (#604).
  • Add instrumenter and logger when async message delivery fails (#603).
  • Upgrade and rename GroupCoordinator API to FindCoordinator API (#606).
  • Refresh cluster metadata after topic re-assignment (#609).
  • Disable SASL over SSL with a new config (#613).
  • Allow listing brokers in a cluster (#626).
  • Fix Fetcher's message skipping (#625).

0.6.7

  • Handle case where consumer doesn't know about the topic (#597 + 0e302cbd0f31315bf81c1d1645520413ad6b58f0)

v0.6.5

  • Fix bug related to partition assignment.

v0.6.4

  • Fix bug that caused consumers to jump back and reprocess messages (#595).

v0.6.3

  • Allow configuring the max size of the queue connecting the fetcher thread with the consumer.
  • Add support for the Describe Groups API (#583).

v0.6.2

  • Add list groups API (#582).
  • Use mutable String constructor (#584).

v0.6.1

  • Fix bug with exponential pausing causing pauses never to stop.

v0.6.0

  • Fetch messages asynchronously (#526).
  • Add support for exponential backoff in pauses (#566).
  • Instrument pause durations (#574).

v0.5.5

  • Support PLAINTEXT and SSL URI schemes (#550).

v0.5.4

  • Add support for config entries in the topic creation API (#540).
  • Don't fail on retry when the cluster is secured (#545).

v0.5.3

  • Add support for the topic deletion API (#528).
  • Add support for the partition creation API (#533).
  • Allow passing in the seed brokers in a positional argument (#538).

v0.5.2

  • Instrument the start of message/batch processing (#496).
  • Mark Client#fetch_messages as stable.
  • Fix the list topics API (#508).
  • Add support for LZ4 compression (#499).
  • Refactor compression codec lookup (#509).
  • Fix compressed message set offset bug (#506).
  • Test against multiple versions of Kafka.
  • Fix double-processing of messages after a consumer exception (#518).
  • Track consumer offsets in Datadog.

v0.5.1

Requires Kafka 0.10.1+ due to usage of a few new APIs.

  • Fix bug when using compression (#458).
  • Update the v3 of the Fetch API, allowing a per-request max_bytes setting (#468).
  • Make #deliver_message more resilient using retries and backoff.
  • Add support for SASL SCRAM authentication (#465).
  • Refactor and simplify SASL code.
  • Fix issue when a consumer resets a partition to its default offset.
  • Allow specifying a create time for messages (#481).

v0.5.0

  • Drops support for Kafka 0.9 in favor of Kafka 0.10 (#381)!
  • Handle cases where there are no partitions to fetch from by sleeping a bit (#439).
  • Handle problems with the broker cache (#440).
  • Shut down more quickly (#438).

v0.4.3

  • Restart the async producer thread automatically after errors.
  • Include the offset lag in batch consumer metrics (Statsd).
  • Make the default max_wait_time more sane.
  • Fix issue with cached default offset lookups (#431).
  • Upgrade to Datadog client version 3.

v0.4.2

  • Fix connection issue on SASL connections (#401).
  • Add more instrumentation of consumer groups (#407).
  • Improve error logging (#385)

v0.4.1

  • Allow seeking the consumer position (#386).
  • Reopen idle connections after 5 minutes (#399).

v0.4.0

  • Support SASL authentication (#334 and #370)
  • Allow loading SSL certificates from files (#371)
  • Add Statsd metric reporting (#373)

v0.3.17

  • Re-commit previously committed offsets periodically with an interval of half the offset retention time, starting with the first commit (#318).
  • Expose offset retention time in the Consumer API (#316).
  • Don't get blocked when there's temporarily no leader for a topic (#336).

v0.3.16

  • Fix SSL socket timeout (#283).
  • Update to the latest Datadog gem (#296).
  • Automatically detect private key type (#297).
  • Only fetch messages for subscribed topics (#309).

v0.3.15

  • Allow setting a timeout on a partition pause (#272).
  • Allow pausing consumption of a partition (#268).

v0.3.14

  • Automatically recover from invalid consumer checkpoints.
  • Minimize the number of times messages are reprocessed after a consumer group resync.
  • Improve instrumentation of the async producer.

v0.3.12

  • Fix a bug in the consumer.

v0.3.11

  • Fix bug in the simple consumer loop.

v0.3.10

  • Handle brokers becoming unavailable while in a consumer loop (#228).
  • Handle edge case when consuming from the end of a topic (#230).
  • Ensure the library can be loaded without Bundler (#224).
  • Add an API for fetching the last offset in a partition (#232).

v0.3.9

  • Improve the default durability setting. The producer setting required_acks now defaults to :all (#210).
  • Handle rebalances in the producer (#196). Mpampis Kostas
  • Add simplified producer and consumer APIs for simple use cases.
  • Add out-of-the-box Datadog reporting.
  • Improve producer performance.

v0.3.8

  • Keep separate connection pools for consumers and producers initialized from the same client.
  • Handle connection errors automatically in the async producer.

v0.3.7

  • Default to port 9092 if no port is provided for a seed broker.

v0.3.6

  • Fix bug that caused partition information to not be reliably updated.

v0.3.5

  • Fix bug that caused the async producer to not work with Unicorn (#166).
  • Fix bug that caused committed consumer offsets to be lost (#167).
  • Instrument buffer overflows in the producer.

v0.3.4

  • Make the producer buffer more resilient in the face of isolated topic errors.

v0.3.3

  • Allow clearing a producer's buffer (Martin Nowak).
  • Improved Consumer API.
  • Instrument producer errors.

v0.3.2

  • Experimental batch consumer API.

v0.3.1

  • Simplify the heartbeat algorithm.
  • Handle partial messages at the end of message sets received from the brokers.

v0.3.0

  • Add support for encryption and authentication with SSL (Tom Crayford).
  • Allow configuring consumer offset commit policies.
  • Instrument consumer message processing.
  • Fixed an issue causing exceptions when no logger was specified.

v0.2.0

  • Add instrumentation of message compression.
  • New! Consumer API – still alpha level. Expect many changes.