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View Code? Open in Web Editor NEWmicro 微服务实例教程，包含JWT鉴权、熔断、监控、链路追踪、健康检查、跨域等
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trace的一些问题
首先，感谢例子，受益良多。
调用Inject时候，应该使用sp.Tracer().Inject，否则在jaeger中链路无法串起来。
执行时报错
go build -o ../build/microGW main.go
go: github.com/micro/[email protected] requires
k8s.io/[email protected] requires
github.com/gogo/[email protected]: invalid pseudo-version: revision is shorter than canonical (65acae22fc9d)
这个错误，我该如何解决？谢谢
window 怎么跑
window 怎么跑
关于micro分布式部署的问题
背景: 想实现在三台服务器主机完成微服务分布式部署
目标: 其中任意一台服务器宕机不影响整个业务使用
准备工作: 在三台服务器上完成consul 集群部署
现在server1上 , 运行 micro api , hello-srv, hello-api 工作正常 , http://192.168.0.1:8080/hello 接口访问成功
然后我尝试在server2 上重复server1操作 ,同样指定 --registry=consul --registry_address=192.168.0.1:8500,
但是发现访问http://192.168.0.1:8080/hello, server1中 micro api log 会出现:
2020-04-01 03:44:47.493251 I | hystrix breaker err: hystrix: timeout
2020-04-01 03:44:47.493531 I | http: proxy error: context canceled
2020-04-01 03:44:47.493547 I | status code 502
而且server2中的也没有接受到请求
所以现在有几个问题想请教一下:
- 如果想达成任意一台服务器宕机不影响整个业务使用的目的, 我应该怎么部署应用, 是不是应该每一个server 都要部署一个 micro api , hello-srv, hello-api ?
- 在server 1-3 中 registry_address该怎样指定?
- 部署完成后, 访问接口http://192.168.0.1:8080/hello接口里的ip是 server1 还是 server2 或 server3 ?
为何不用rpcx而用go-micro 呢
rpcx这个框架有服务自理，也支持类似插件化的功能，性能也比grpc好，求指教
userSRV 服务启动报错
consul服务器不在本地主机userSRV无法启动一起报错
protoc --proto_path=/Users/allen/dev/go/src:. --micro_out=. --go_out=. proto/user/user.proto
go build -o ../../build/userSRV main.go
../../build/userSRV --registry=consul --registry_address=192.168.31.30:8500
2019/05/20 15:27:43 error loading source consul: Get http://127.0.0.1:8500/v1/kv/micro/config/?recurse=: dial tcp 127.0.0.1:8500: connect: connection refused
make: *** [run] Error 1
能提供下联系方式一起交流吗
Go micro 微服务实战 QQ群184572648
micro api 这边会偶然出现502
你好, 我clone代码后加了几个接口,都可以运行起来, 测试发现, 长时间不访问后调用接口, 偶然会出现502错误, 还没有解决, google 也没找到有用的信息, 来请教一下
`
192.168.0.1 - - [03/Mar/2020:01:45:06 +0000] "GET /metrics HTTP/1.1" 200 1479 "" "Prometheus/2.16.0"
2020-03-03 01:45:21.403572 I | auth plugin received: /metrics
2020-03-03 01:45:21.404120 I | GET-/metrics
192.168.0.1 - - [03/Mar/2020:01:45:21 +0000] "GET /metrics HTTP/1.1" 200 1478 "" "Prometheus/2.16.0"
2020-03-03 01:45:26.622715 I | auth plugin received: /device/activate
2020-03-03 01:45:26.623343 I | POST-/device/activate
2020-03-03 01:45:27.652417 I | hystrix breaker err: hystrix: timeout
210.22.74.67 - - [03/Mar/2020:01:45:26 +0000] "POST /device/activate HTTP/1.1" 200 0 "" ""
2020-03-03 01:45:27.654895 I | http: proxy error: context canceled
2020-03-03 01:45:27.665910 I | http: superfluous response.WriteHeader call from github.com/gorilla/handlers.(*responseLogger).WriteHeader (handlers.go:65)
2020-03-03 01:45:27.666027 I | status code 502
2020-03-03 01:45:36.403598 I | auth plugin received: /metrics
2020-03-03 01:45:36.404147 I | GET-/metrics
192.168.0.1 - - [03/Mar/2020:01:45:36 +0000] "GET /metrics HTTP/1.1" 200 1482 "" "Prometheus/2.16.0"
`
request gateway 405
访问api模块： http://localhost:8081/user/test
{
message: "Hi, this is the Greeter API"
}
但是访问gateway 405
request url : http://localhost:8080/user/test
{
id: "go.micro.client.transport",
code: 500,
detail: "405 Not Allowed: <html> <head><title>405 Not Allowed</title></head> <body bgcolor="white"> <center><h1>405 Not Allowed</h1></center> <hr><center>nginx/1.8.1</center> </body> </html> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> ",
status: "Internal Server Error"
}
auth和broker注释掉也报这个错误，请问gateway如何访问其他微服务模块的呢? 谢谢。
panic: WriteHeader called after Handler finished
部署在云服务器上会panic: WriteHeader called after Handler finished
micro Api panic 必现步骤 :
1. 先把熔断阀值调高
hystrix.DefaultMaxConcurrent = 100000
hystrix.DefaultVolumeThreshold = 100000
2. 熔断超时调低
hystrix.DefaultTimeout = 100
3 .用压测工具 webbench 高并发请求接口必panic "panic: net/http: CloseNotify called after ServeHTTP finished"
在这之前想请教下 Demo里面 user-api里超时设置 hystrix.DefaultTimeout = 5000 , 但是我在breaker/hystrix.go打印依然是默认的1000, 在api/user/main.go设置是不是没有生效? 所以上述的步骤里面几句代码是加在了, breaker/hystrix.go init()函数里面
Consul issue
Hi @Allenxuxu, nice to meet you! I'm learning with your code, thanks for share!
Can you help me with the issue below?
$ make run
go build -o ../../build/userAPI main.go
../../build/userAPI --registry=consul
2019/05/03 21:32:48 error loading source consul: source not found: /micro/config/
make: *** [run] Error 1
关于micro api的一些问题
感谢你写的go-micro例子，关于micro api想请教一下啊：1，micro api 你把auth trace breaker 等中间件全部让api网关执行，会影响性能么？2，micro api 感觉是所有请求的入口，如果网关后端对应着几十个服务，所有的请求都走网关，会不会成为性能瓶颈啊，对网关可以做负载均衡吗？还有如何防单点故障呢？对于api网关我一直困惑这几点。谢谢。
要是能出个细致的教程就好了！
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