* add a note to the documentation about pre-built HLLSketches
Druid actually supports ingesting a pre-generated sketch column by using
the HLLSketchMerge aggregator. However, this functionality was
previously not made clear in the documentation.
* copyedit from the King's English to American English
* add suggested style changes
Co-authored-by: Charles Smith <techdocsmith@gmail.com>
Co-authored-by: Charles Smith <techdocsmith@gmail.com>
This adds a sql function, "BIG_SUM", that uses
CompressedBigDecimal to do a sum. Other misc changes:
1. handle NumberFormatExceptions when parsing a string (default to set
to 0, configurable in agg factory to be strict and throw on error)
2. format pom file (whitespace) + add dependency
3. scaleUp -> scale and always require scale as a parameter
Optimizes the compareTo() function in
CompressedBigDecimal. It directly compares the int[] rather than
creating BigDecimal objects and using its compareTo.
It handles unequal sized CBDs, but does require
the scales to match.
* update log4j example
* fix some style issues
* Update docs/configuration/logging.md
Co-authored-by: Frank Chen <frankchen@apache.org>
Co-authored-by: Frank Chen <frankchen@apache.org>
Fixes#12822
The framework added here make it easy to write tests that verify the behaviour and interactions
of the following entities under various conditions:
- `DruidCoordinator`
- `HttpLoadQueuePeon`, `LoadQueueTaskMaster`
- coordinator duties: `BalanceSegments`, `RunRules`, `UnloadUnusedSegments`, etc.
- datasource retention rules: `LoadRule`, `DropRule`
Changes:
Add the following main classes:
- `CoordinatorSimulation` and related interfaces to dictate behaviour of simulation
- `CoordinatorSimulationBuilder` to build a simulation.
- `BlockingExecutorService` to keep submitted tasks in queue and execute them
only when explicitly invoked.
Add tests:
- `CoordinatorSimulationBaseTest`, `SegmentLoadingTest`, `SegmentBalancingTest`
- `SegmentLoadingNegativeTest` to contain tests which assert the existing erroneous behaviour
of segment loading. Once the behaviour is fixed, these tests will be moved to the regular
`SegmentLoadingTest`.
Please refer to the README.md in `org.apache.druid.server.coordinator.simulate` for more details
* Clarified the behaviour of COUNT(DISTINCT column) on multi-value columns
* Update docs/querying/sql-aggregations.md
Co-authored-by: Charles Smith <techdocsmith@gmail.com>
Co-authored-by: Vadim Ogievetsky <vadimon@gmail.com>
Co-authored-by: Charles Smith <techdocsmith@gmail.com>
* Converted Druid planner to use statement handlers
Converts the large collection of if-statements for statement
types into a set of classes: one per supported statement type.
Cleans up a few error messages.
* Revisions from review comments
* Build fix
* Build fix
* Resolve merge confict.
* More merges with QueryResponse PR
* More parameterized type cleanup
Forces a rebuild due to a flaky test
* Various documentation updates.
1) Split out "data management" from "ingestion". Break it into thematic pages.
2) Move "SQL-based ingestion" into the Ingestion category. Adjust content so
all conceptual content is in concepts.md and all syntax content is in reference.md.
Shorten the known issues page to the most interesting ones.
3) Add SQL-based ingestion to the ingestion method comparison page. Remove the
index task, since index_parallel is just as good when maxNumConcurrentSubTasks: 1.
4) Rename various mentions of "Druid console" to "web console".
5) Add additional information to ingestion/partitioning.md.
6) Remove a mention of Tranquility.
7) Remove a note about upgrading to Druid 0.10.1.
8) Remove no-longer-relevant task types from ingestion/tasks.md.
9) Move ingestion/native-batch-firehose.md to the hidden section. It was previously deprecated.
10) Move ingestion/native-batch-simple-task.md to the hidden section. It is still linked in some
places, but it isn't very useful compared to index_parallel, so it shouldn't take up space
in the sidebar.
11) Make all br tags self-closing.
12) Certain other cosmetic changes.
13) Update to node-sass 7.
* make travis use node12 for docs
Co-authored-by: Vadim Ogievetsky <vadim@ogievetsky.com>
* Allocate numCorePartitions using only used segments
* Add corePartition checks in existing test
* Separate committedMaxId and overallMaxId
* Fix bug: replace overall with committed
* remove things that do not apply
* fix more things
* pin node to a working version
* fix
* fixes
* known issues tidy up
* revert auto formatting changes
* remove management-uis page which is 100% lies
* don't mention the Coordinator console (that no longer exits)
* goodies
* fix typo
* Update README.md
Expansion on the process and where everything is.
* Update README.md
Switcheroo and a typo fix.
* Update README.md
Header link update to take to the H2.
* Update README.md
Reverted docs link after feedback
* Update README.md
Amended language.
Co-authored-by: Charles Smith <techdocsmith@gmail.com>
* Update README.md
PR term update
Co-authored-by: Charles Smith <techdocsmith@gmail.com>
* README.md community channels
Removed explicit links to project channels in favour of a link direct to the Community page on druid.apache.org.
Updated nav to match remaining headings in the README.
* Update README.md
Reintroduced the old section and amended the nav bar to point to back to the community section.
* Incorporated suggested wording from @paul-rogers with some stylistic blahness
* Updated Slack phraseology to be closer to the Google User Groups header wording and called out specific channels
* Added new wording re: events and articles with link to the repo to contribute them
This commit fixes issues with delayed supervisor termination during certain transient states.
Tasks can be created during supervisor termination and left behind since the cleanup may
not consider these newly added tasks.
#12178 added a lock for the entire process of task creation to prevent such dangling tasks.
But it also introduced a deadlock scenario as follows:
- An invocation of `runInternal` is in progress.
- A `stop` request comes, acquires `stateChangeLock` and submit a `ShutdownNotice`
- `runInternal` keeps waiting to acquire the `stateChangeLock`
- `ShutdownNotice` remains stuck in the notice queue because `runInternal` is still running
- After some timeout, the supervisor goes through a forced termination
Fix:
* `SeekableStreamSupervisor.runInternal` - do not try to acquire lock if supervisor is already stopping
* `SupervisorStateManager.maybeSetState` - do not allow transitions from STOPPING state
Vadim Ogievetsky
Kashif Faraz
Abhishek Agarwal
AmatyaAvadhanula
Jill Osborne
David Palmer
Apoorv Gupta
Sam Rash
Jonathan Wei
imply-cheddar
Laksh Singla
Adarsh Sanjeev
Charles Smith
317brian
Gian Merlino
Katya Macedo
hosswald
Frank Chen
abhagraw
Clint Wylie
Paul Rogers
Ellen Shen
Peter Marshall
Atul Mohan