GRPC 1.26 and above are not supported

[moyunnie]

Bug report criteria

• This bug report is not security related, security issues should be disclosed privately via security@etcd.io.
• This is not a support request, support requests should be raised in the etcd discussion forums.
• You have read the etcd bug reporting guidelines.
• Existing open issues along with etcd frequently asked questions have been checked and this is not a duplicate.

What happened?

The code generated by protoc is dependent on GRPC 1.32, so cannot it support the latest version of GRPC

What did you expect to happen?

Error reporting

How can we reproduce it (as minimally and precisely as possible)?

Higher than grpc 1.26 will occur

Anything else we need to know?

No response

Etcd version (please run commands below)

$ etcd --version
# paste output here

$ etcdctl version
# paste output here

Etcd configuration (command line flags or environment variables)

paste your configuration here

Etcd debug information (please run commands below, feel free to obfuscate the IP address or FQDN in the output)

$ etcdctl member list -w table
# paste output here

$ etcdctl --endpoints=<member list> endpoint status -w table
# paste output here

Relevant log output

No response

[wenjiaswe]

For etcd v3.4, grpc version is 1.26, but it's 1.41 in v3.5 and 1.51 at head.

Please let us know if that doesn't answer your question.

[wonbin2011]

there is vulnerability in grpc under version 1.53.1

[ahrtr]

We are aware of this task, and there is a pending PR #15131