go-micro/registry/etcd/etcd.go import etcd package error

[teezxt]

since "github.com/coreos/etcd/clientv3" has been redirected to the "go.etcd.io/etcd",why "go-micro/registry/etcd/etcd.go" still import "github.com/coreos/etcd/clientv3",so we have to change it by ourselves?

[asim]

Because we're using a version in go modules which has not changed. We make use of etcd concurrency package which still causes issues.

[teezxt]

@asim thank you so much

[PatrLind]

I think I have a related error (not sure?).
I cannot install go-micro:
Install command go get github.com/micro/go-micro
Output:

go: downloading github.com/go-log/log v0.1.0
go: downloading github.com/lucas-clemente/quic-go v0.14.1
go: downloading github.com/cheekybits/genny v1.0.0
go: downloading github.com/marten-seemann/qtls v0.4.1
go: downloading github.com/marten-seemann/chacha20 v0.2.0
# github.com/coreos/etcd/clientv3/balancer/picker
..\..\..\..\..\pkg\mod\github.com\coreos\[email protected]+incompatible\clientv3\balancer\picker\err.go:37:44: undefined: balancer.PickOptions
..\..\..\..\..\pkg\mod\github.com\coreos\[email protected]+incompatible\clientv3\balancer\picker\roundrobin_balanced.go:55:54: undefined: balancer.PickOptions
# github.com/coreos/etcd/clientv3/balancer/resolver/endpoint
..\..\..\..\..\pkg\mod\github.com\coreos\[email protected]+incompatible\clientv3\balancer\resolver\endpoint\endpoint.go:114:78: undefined: resolver.BuildOption
..\..\..\..\..\pkg\mod\github.com\coreos\[email protected]+incompatible\clientv3\balancer\resolver\endpoint\endpoint.go:182:31: undefined: resolver.ResolveNowOption

Are there any known work-arounds?

[asim]

Please use go modules?

[PatrLind]

I have tried with modules and without, does not install. Seems to be a problem in the etcd package and not this, so I guess I have to wait to try out Go Micro until they resolve the issue.

[asim]

We have zero issues. All our builds pass and anyone using the versions of go-micro we have with our go modules it works. You need to ensure you dont have any residual stuff causing issues. go clean modcache.

[teezxt]

use go modules,it works fine

[PatrLind]

Related issue: https://github.com/etcd-io/etcd/issues/11721

For me with or without modules does not work. Maybe because I am using a newer gRPC version (according to the related issue), I will try to investigate a bit more.

EDIT:
Ok, I have figured out a solution that worked for me.
First I installed an older version of gRPC:
go get google.golang.org/[email protected]
and then i rechecked the mod file:
go mod tidy
This did the trick for me!

[haqqi]

Related issue: etcd-io/etcd#11721

For me with or without modules does not work. Maybe because I am using a newer gRPC version (according to the related issue), I will try to investigate a bit more.

EDIT:
Ok, I have figured out a solution that worked for me.
First I installed an older version of gRPC:
go get google.golang.org/[email protected]
and then i rechecked the mod file:
go mod tidy
This did the trick for me!

Thanks for the workaround. It stressed me to solve this before. Seems like downgrading to lower version does well.

[vtolstov]

@PatrLind this can fix you issue
replace github.com/coreos/etcd => github.com/ozonru/etcd v3.3.20-grpc1.27-origmodule+incompatible