Lee Hinman b6a2b8d682 Track EWMA[1] of task execution time in search threadpool executor ...

This is the first step towards adaptive replica selection (#24915). This PR
tracks the execution time, also known as the "service time" of a task in the
threadpool. The `QueueResizingEsThreadPoolExecutor` then stores a moving average
of these task times which can be retrieved from the executor.

Currently there is no functionality using the EWMA yet (other than tests), this
is only a bite-sized building block so that it's easier to review.

[1]: EWMA = Exponentially Weighted Moving Average

2017-06-05 10:09:41 -06:00

..

licenses

Upgrade to lucene-7.0.0-snapshot-a0aef2f

2017-05-19 10:20:55 -05:00

src

Track EWMA[1] of task execution time in search threadpool executor

2017-06-05 10:09:41 -06:00

build.gradle

[Test] Remove unused test resources in core (#25011)

2017-06-02 09:08:51 +02:00