bp #44959
if you `enable_all_http_auth = true` in be.conf, then restart be, and
keep using `curl -u "xxxx:xxxx" http://127.0.0.1:8040/api/health` while
be is starting. You may encounter a situation where the link does not
return.
Reason:
When be is still starting, there is no information about fe master. When
you make an api request to be http port, be needs to request
authentication information from fe, which will cause it to request a
machine with empty ip and port 0. This rpc call will definitely fail
(this is not equivalent to a password error). After receiving this
failure, be does not `send_reply` to the api requester, so this api
request cannot be returned.
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