*Language*: C++
*gRPC version*: 1.2.5
*Role*: gRPC client
A quick question here. I'm observing a situation where the client attempts
to connect to a server, repeatedly printing out the following error
(SOME_IP:PORT edited out)
[gRPC] watch_completion_error:
{"created":"@1537198702.954601066","description":"Connect
Failed","file":"src/core/ext/client_channel/subchannel.c","file_line":700,"grpc_status":14,"referenced_errors":[{"created":"@1537198702.954515638","description":"Failed
to connect to remote host: FD
Shutdown","file":"src/core/lib/iomgr/ev_epoll_linux.c","file_line":1208,"os_error":"Timeout
occurred","referenced_errors":[{"created":"@1537198702.954497141","description":"connect()
timed
out","file":"src/core/lib/iomgr/tcp_client_posix.c","file_line":148}],"target_address":"ipv4:SOME_IP:PORT"}]}
This is all fine during some init time when the server might still be
unreachable. However, this continues even when the server does become
reachable and a new grpc connection succeeds, but the initial one keeps
retrying. I can also see that the same FD is being used in all connect
attempts.
To summarize:
(a) there is some networking condition that prevents a successful initial
tcp connection
(b) when the condition in (a) is resolved, the initial connection still
cannot recover and continues to fail (from the logs I can see that it uses
the same FD every time for the socket)
(c) a new, 'fresh' connection is successful when (a) is a resolved, but the
initial connection is still failing
My question is: is there a way to 'force' gRCP not to reuse the same socket
for subsequent 'connect' attempts?
Any advice on how to mitigate the scenario above will be highly
appreciated. My current thinking is to destroy and create a new channel if
it fails repeatedly, but I was hoping for something more elegant.
Thanks for being helpful as always!
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