* Use trusty for travis jobs.
The distro was set to "precise" in #4572 due to memory issues on trusty,
but we've been seeing performance issues on "precise" recently so let's
see how trusty is working these days.
* Less quiet.
* Adjust memory settings.
* Add back -q option.
* Tweak memory again.
* Adjustments.
* Try squeezing memory a bit more.
* Collapse worker select strategies, change default, add strong affinity.
- Change default worker select strategy to equalDistribution. It is
more generally useful than fillCapacity.
- Collapse the *WithAffinity strategies into the regular ones. The
*WithAffinity strategies are retained for backwards compatibility.
- Change WorkerSelectStrategy to return nullable instead of Optional.
- Fix a couple of errors in the docs.
* Fix test.
* Review adjustments.
* Remove unused imports.
* Switch to DateTimes.nowUtc.
* Simplify code.
* Fix tests (worker assignment started off on a different foot)
Expose version property for so that it may serialize/deserialize correctly
Expose version property for `CustomVersioningPolicy` so that it may serialize/deserialize correctly
Expose version property for CustomVersioningPolicy so that it may serialize/deserialize correctly
Expose version property for `CustomVersioningPolicy` so that it may serialize/deserialize correctly
* DruidLeaderSelector interface for leader election and Curator based impl. DruidCoordinator/TaskMaster are updated to use the new interface.
* add fake DruidNode binding in integration-tests module
* add docs on DruidLeaderSelector interface
* remove start/stop and keep register/unregister Listener in DruidLeaderSelector interface
* updated comments on DruidLeaderSelector
* cache the listener executor in CuratorDruidLeaderSelector
* use same latch owner name that was used before
* remove stuff related to druid.zk.paths.indexer.leaderLatchPath config
* randomize the delay when giving up leadership and restarting leader latch
* SQL: EXPLAIN improvements.
- Include query JSON in explain output.
- Fix a bug where semi-joins and nested groupBys were not fully explained.
- Fix a bug where limits were not included in "select" query explanations.
* Fix compile error.
* Fix compile error.
* Fix tests.
* Allow ndex job to utilize hadoop cluster information from job config.
* Add new method that inject system configuration and then job configuration.
* Make changes to use HadoopDruidIndexerConfig.addJobProperties method.
* refactor code for overloaded addJobProperties.
* Factor QueryableIndexColumnSelectorFactory and IncrementalIndexColumnSelectorFactory out of QueryableIndexStorageAdapter and IncrementalIndexStorageAdapter; Add Offset.getBaseReadableOffset(); Remove OffsetHolder interface; Replace Cursor extends ColumnSelectorFactory with composition; Reduce indirection in ColumnValueSelectors created by QueryableIndexColumnSelectorFactory
* Don't override clone() in FilteredOffset (the prev. implementation was broken); Some warnings fixed
* Simplify Cursors in QueryableIndexStorageAdapter
* Address comments
* Remove unused and unimplemented methods from GenericColumn interface
* Comments
* Add "round" option to cardinality and hyperUnique aggregators.
Also turn it on by default in SQL, to make math on distinct counts
work more as expected.
* Fix some compile errors.
* Fix test.
* Formatting.
* Add @ExtensionPoint and @PublicApi annotations.
* Clean up wording.
* Remove unused import.
* Remove unused imports.
* Only types can be extension points.
* Adjust annotations some more.
* Remove unused import.
* Make ServletFilterHolder an extension point.
* Add a couple extension points, and update docs.
* Fix dimension selectors with extractionFns on missing columns.
This patch properly applies the requested extractionFn to missing columns.
It's important when the extractionFn maps null to something other than null.
* Extract helper method.
* Change contracts of VirtualColumns and VirtualColumn methods based on review comments.
* Remove unused import.
* Remove unused method.
* Adjust helper function.
* Adjustments
* Do not remove segment that should not be moved from currentlyMovingSegments (segments are removed by callbacks or not inserted)
* Mark segments that are going to be dropped from server and use this information in CostBalancerStrategy
* Fix tests
* update LookupCoordinatorManager to use internal discovery to discover lookup nodes
* router:use internal-discovery to discover brokers
* minor [Curator]DruidDiscoveryProvider refactoring
* add initialized() method to DruidNodeDiscovery.Listener
* update HttpServerInventoryView to use initialized() and call segment callback initialization asynchronously
* Revert "update HttpServerInventoryView to use initialized() and call segment callback initialization asynchronously"
This reverts commit f796e441221fe8b0e9df87fdec6c9f47bcedd890.
* Revert "add initialized() method to DruidNodeDiscovery.Listener"
This reverts commit f0661541d073683f28fce2dd4f30ec37db90deb0.
* minor refactoring removing synchronized from DruidNodeDiscoveryProvider
* updated DruidNodeDiscovery.Listener contract to take List of nodes and first call marks initialization
* update HttpServerInventoryView to handle new contract and handle initialization
* router update to handle updated listener contract
* document DruidNodeDiscovery.Listener contract
* fix forbidden-api error
* change log level to info for unknown path children cache events in CuratorDruidNodeDiscoveryProvider
* announce broker only after segment inventory is initialized
