druid/extensions-contrib/moving-average-query
Clint Wylie 7aafcf8bca parallel broker merges on fork join pool (#8578)
* sketch of broker parallel merges done in small batches on fork join pool

* fix non-terminating sequences, auto compute parallelism

* adjust benches

* adjust benchmarks

* now hella more faster, fixed dumb

* fix

* remove comments

* log.info for debug

* javadoc

* safer block for sequence to yielder conversion

* refactor LifecycleForkJoinPool into LifecycleForkJoinPoolProvider which wraps a ForkJoinPool

* smooth yield rate adjustment, more logs to help tune

* cleanup, less logs

* error handling, bug fixes, on by default, more parallel, more tests

* remove unused var

* comments

* timeboundary mergeFn

* simplify, more javadoc

* formatting

* pushdown config

* use nanos consistently, move logs back to debug level, bit more javadoc

* static terminal result batch

* javadoc for nullability of createMergeFn

* cleanup

* oops

* fix race, add docs

* spelling, remove todo, add unhandled exception log

* cleanup, revert unintended change

* another unintended change

* review stuff

* add ParallelMergeCombiningSequenceBenchmark, fixes

* hyper-threading is the enemy

* fix initial start delay, lol

* parallelism computer now balances partition sizes to partition counts using sqrt of sequence count instead of sequence count by 2

* fix those important style issues with the benchmarks code

* lazy sequence creation for benchmarks

* more benchmark comments

* stable sequence generation time

* update defaults to use 100ms target time, 4096 batch size, 16384 initial yield, also update user docs

* add jmh thread based benchmarks, cleanup some stuff

* oops

* style

* add spread to jmh thread benchmark start range, more comments to benchmarks parameters and purpose

* retool benchmark to allow modeling more typical heterogenous heavy workloads

* spelling

* fix

* refactor benchmarks

* formatting

* docs

* add maxThreadStartDelay parameter to threaded benchmark

* why does catch need to be on its own line but else doesnt
2019-11-07 11:58:46 -08:00
..
src parallel broker merges on fork join pool (#8578) 2019-11-07 11:58:46 -08:00
README.md switch links from druid.io to druid.apache.org (#7914) 2019-06-18 09:06:27 -07:00
pom.xml Fix dependency analyze warnings (#8230) 2019-09-09 14:37:21 -07:00

README.md

druid-moving-average-query

Overview

Moving Average Query is an extension which provides support for Moving Average and other Aggregate Window Functions in Druid queries.

Documentation

See the druid.apache.org website or under Druid Github Repo.