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tile38/vendor/github.com/eapache/go-resiliency/breaker/README.md

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Refactor repository and build scripts This commit includes updates that affects the build, testing, and deployment of Tile38. - The root level build.sh has been broken up into multiple scripts and placed in the "scripts" directory. - The vendor directory has been updated to follow the Go modules rules, thus `make` should work on isolated environments. Also some vendored packages may have been updated to a later version, if needed. - The Makefile has been updated to allow for making single binaries such as `make tile38-server`. There is some scaffolding during the build process, so from now on all binaries should be made using make. For example, to run a development version of the tile38-cli binary, do this: make tile38-cli && ./tile38-cli not this: go run cmd/tile38-cli/main.go - Travis.CI docker push script has been updated to address a change to Docker's JSON repo meta output, which in turn fixes a bug where new Tile38 versions were not being properly pushed to Docker
2019-11-18 20:33:15 +03:00
circuit-breaker
===============
[![Build Status](https://travis-ci.org/eapache/go-resiliency.svg?branch=master)](https://travis-ci.org/eapache/go-resiliency)
[![GoDoc](https://godoc.org/github.com/eapache/go-resiliency/breaker?status.svg)](https://godoc.org/github.com/eapache/go-resiliency/breaker)
Updated Kafka client
2020-06-25 00:20:22 +03:00
[![Code of Conduct](https://img.shields.io/badge/code%20of%20conduct-active-blue.svg)](https://eapache.github.io/conduct.html)
Refactor repository and build scripts This commit includes updates that affects the build, testing, and deployment of Tile38. - The root level build.sh has been broken up into multiple scripts and placed in the "scripts" directory. - The vendor directory has been updated to follow the Go modules rules, thus `make` should work on isolated environments. Also some vendored packages may have been updated to a later version, if needed. - The Makefile has been updated to allow for making single binaries such as `make tile38-server`. There is some scaffolding during the build process, so from now on all binaries should be made using make. For example, to run a development version of the tile38-cli binary, do this: make tile38-cli && ./tile38-cli not this: go run cmd/tile38-cli/main.go - Travis.CI docker push script has been updated to address a change to Docker's JSON repo meta output, which in turn fixes a bug where new Tile38 versions were not being properly pushed to Docker
2019-11-18 20:33:15 +03:00
The circuit-breaker resiliency pattern for golang.
Creating a breaker takes three parameters:
- error threshold (for opening the breaker)
- success threshold (for closing the breaker)
- timeout (how long to keep the breaker open)
```go
b := breaker.New(3, 1, 5*time.Second)
for {
result := b.Run(func() error {
// communicate with some external service and
// return an error if the communication failed
return nil
})
switch result {
case nil:
// success!
case breaker.ErrBreakerOpen:
// our function wasn't run because the breaker was open
default:
// some other error
}
}
```