firecracker-task-driver err="rpc error: code = Unimplemented desc = unknown service plugin.GRPCStdio"

[euskadi31]

Nomad: 1.1.2

Logs

    2021-09-14T23:49:13.352+0200 [DEBUG] agent.plugin_loader: starting plugin: plugin_dir=/opt/nomad/plugins path=/opt/nomad/plugins/firecracker-task-driver args=[/opt/nomad/plugins/firecracker-task-driver]
    2021-09-14T23:49:13.353+0200 [DEBUG] agent.plugin_loader: plugin started: plugin_dir=/opt/nomad/plugins path=/opt/nomad/plugins/firecracker-task-driver pid=1765320
    2021-09-14T23:49:13.353+0200 [DEBUG] agent.plugin_loader: waiting for RPC address: plugin_dir=/opt/nomad/plugins path=/opt/nomad/plugins/firecracker-task-driver
    2021-09-14T23:49:13.512+0200 [DEBUG] agent.plugin_loader: using plugin: plugin_dir=/opt/nomad/plugins version=2
    2021-09-14T23:49:13.512+0200 [DEBUG] agent.plugin_loader.firecracker-task-driver: plugin address: plugin_dir=/opt/nomad/plugins network=unix address=/tmp/plugin021821091 timestamp=2021-09-14T23:49:13.510+0200
    2021-09-14T23:49:13.522+0200 [DEBUG] agent.plugin_loader.stdio: received EOF, stopping recv loop: plugin_dir=/opt/nomad/plugins err="rpc error: code = Unimplemented desc = unknown service plugin.GRPCStdio"
    2021-09-14T23:49:13.533+0200 [DEBUG] agent.plugin_loader: plugin process exited: plugin_dir=/opt/nomad/plugins path=/opt/nomad/plugins/firecracker-task-driver pid=1765320
    2021-09-14T23:49:13.538+0200 [DEBUG] agent.plugin_loader: plugin exited: plugin_dir=/opt/nomad/plugins
    2021-09-14T23:49:13.656+0200 [DEBUG] agent.plugin_loader.docker: using client connection initialized from environment: plugin_dir=/opt/nomad/plugins
    2021-09-14T23:49:13.656+0200 [DEBUG] agent.plugin_loader.docker: using client connection initialized from environment: plugin_dir=/opt/nomad/plugins

[cneira]

Thanks for the report @euskadi31, how do I reproduce this error ?

[euskadi31]

I follow your readme

[ghost]

@cneira
This log message comes from hashicorp/go-plugin and is just saying that you haven't opted into the stdio service per hashicorp/go-plugin#142 and doesn't necessarily mean that anything is wrong.
What you can do is explicitly drop the message ala grafana/grafana#23601 or let people ignore it (although some people may be tripped by seeing what sounds like an error like @euskadi31 and I were)