Druid 0.8.3 Stable

Finally! After a couple more release candidates, we are excited to announce the

release of Druid 0.8.3!

Please read the release notes carefully before upgrading. Some config changes

are needed and the update order is slightly different than usual.

This release comes with some fun features such as restorable index tasks, new

sketch aggregators, as well as caching on realtime segments.

Lots of bugs have been squashed, including some really old ones. You should

also see some nice performance improvements on the indexing side, and if you

are running lots of realtime tasks your ZooKeeper cluster should be much much


See the full release notes at https://github.com/druid-io/druid/releases/tag/druid-0.8.3

Download is available here




Thanks to everyone who contributed to this release, especially our newly-minted


Hey guys,

We were building the 0.8.3 stable repo off of the source and found that it doesn’t include the datasketches in the extensions-repo natively, and when I checked the artifact download it also is missing the datasketches from the extensions-repo. Once we included the dependency in the extensions-distribution it popped up but just figured I’d pass this along.



Hi Michael,

Datasketches should be in maven central: http://search.maven.org/#search|ga|1|a%3A"druid-datasketches"