Druid v0.14.1 Release Notes
Release Date: 2019-05-09 // almost 5 years ago-
๐ Apache Druid 0.14.1-incubating is a small patch release that includes a handful of bug and documentation fixes from 16 contributors.
Important Notice
This release fixes an issue with
druid-datasketches
extension with quantile sketches, but introduces another one with theta sketches that was confirmed after the release was finalized, caused by #7320 and described in #7607. If you utilize theta sketches, we recommend _ not _ upgrading to this release. This will be fixed in the next release of Druid by #7619.๐ Bug Fixes
- โ use latest sketches-core-0.13.1 #7320
- Adjust BufferAggregator.get() impls to return copies #7464
- DoublesSketchComplexMetricSerde: Handle empty strings. #7429
- ๐ handle empty sketches #7526
- โ Adds backwards-compatible serde for SeekableStreamStartSequenceNumbers. #7512
- ๐ Support Kafka supervisor adopting running tasks between versions #7212
- ๐ Fix time-extraction topN with non-STRING outputType. #7257
- ๐ Fix two issues with Coordinator -> Overlord communication. #7412
- ๐จ refactor druid-bloom-filter aggregators #7496
- ๐ Fix encoded taskId check in chatHandlerResource #7520
- ๐ Fix too many dentry cache slab objs#7508. #7509
- ๐ Fix result-level cache for queries #7325
- ๐ Fix flattening Avro Maps with Utf8 keys #7258
- Write null byte when indexing numeric dimensions with Hadoop #7020
- ๐ท Batch hadoop ingestion job doesn't work correctly with custom segments table #7492
- ๐ Fix aggregatorFactory meta merge exception #7504
๐ Documentation Changes
- ๐ Fix broken link due to Typo. #7513
- ๐ Some docs optimization #6890
- โก๏ธ Updated Javascript Affinity config docs #7441
- ๐ fix expressions docs operator table #7420
- ๐ Fix conflicting information in configuration doc #7299
- โ Add missing doc link for operations/http-compression.html #7110
โก๏ธ Updating from 0.14.0-incubating and earlier
Kafka Ingestion
Updating from version 0.13.0-incubating or earlier directly to 0.14.1-incubating will not require downtime like the migration path to 0.14.0-incubating due to the issue described in #6958, which has been fixed for this release in #7212. Likewise, rolling updates from version 0.13.0-incubating and earlier should also work properly due to #7512.
Native Parallel Ingestion
Updating from 0.13.0-incubating directly to 0.14.1-incubating will not encounter any issues during a rolling update with mixed versions of middle managers due to the fixes in #7520, as could be experienced when updating to 0.14.0-incubating.
Credits
๐ Thanks to everyone who contributed to this release!
@AlexanderSaydakov
@b-slim
@benhopp
@chrishardis
๐ @clintropolis
@ferristseng
@es1220
@gianm
@jihoonson
@jon-wei
@justinborromeo
@kaka11chen
@samarthjain
@surekhasaharan
@zhaojiandong
@zhztheplayerApache Druid (incubating) is an effort undergoing incubation at The Apache Software Foundation (ASF), sponsored by the Apache Incubator. Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects. While incubation status is not necessarily a reflection of the completeness or stability of the code, it does indicate that the project has yet to be fully endorsed by the ASF.