swarm: integrate OpenTracing; propagate ctx to internal APIs (#17169)

* swarm: propagate ctx, enable opentracing

* swarm/tracing: log error when tracing is misconfigured
This commit is contained in:
Anton Evangelatov
2018-07-13 17:40:28 +02:00
committed by Balint Gabor
parent f7d3678c28
commit 7c9314f231
170 changed files with 21762 additions and 249 deletions

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hdrhistogram
============
[![Build Status](https://travis-ci.org/codahale/hdrhistogram.png?branch=master)](https://travis-ci.org/codahale/hdrhistogram)
A pure Go implementation of the [HDR Histogram](https://github.com/HdrHistogram/HdrHistogram).
> A Histogram that supports recording and analyzing sampled data value counts
> across a configurable integer value range with configurable value precision
> within the range. Value precision is expressed as the number of significant
> digits in the value recording, and provides control over value quantization
> behavior across the value range and the subsequent value resolution at any
> given level.
For documentation, check [godoc](http://godoc.org/github.com/codahale/hdrhistogram).