nic-6443 commented on issue #9273:
URL: https://github.com/apache/apisix/issues/9273#issuecomment-1502720569
```
local function _receive_status(sock)
local line, err = sock:receive("*l")
if not line then
return nil, nil, nil, err
end
local version = tonumber(str_sub(line, 6, 8)) -- line is a boolean?
```
The error message is indeed very strange. According to the [documentation of
the
`tcpsock:receive`](https://github.com/openresty/lua-nginx-module/tree/v0.10.21#tcpsockreceive)
function, the returned data should be a string type, but the error here says
that it is a boolean type variable.
Can you help capture a network packet from apisix to consul using tcpdump?
This way we can see what kind of tcp payload triggered the above error.
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