This question was also asked on github, so linking to the discussion for
future searchers: https://github.com/grpc/grpc/issues/17075
On Wednesday, October 31, 2018 at 10:10:44 AM UTC-7, Stefan Seefeld wrote:
>
>
> Hello,
>
> I'm using the C++ API to write an RPC server, following the provided
> example code:
> ```
> std::string server_address("0.0.0.0:50051");
> GreeterServiceImpl service;
> ServerBuilder builder;
> builder.AddListeningPort(server_address,
> grpc::InsecureServerCredentials());
> builder.RegisterService(&service);
> std::unique_ptr<Server> server(builder.BuildAndStart());
> server->Wait();
> ```
>
> whenever another process is already using the above address, this code
> results in a segfault, with this error being printed out:
>
> E1031 13:01:42.858837542 17537 server_chttp2.cc:40]
> {"created":"@1541005302.858452834","description":"No address added out of
> total 1
> resolved","file":"/home2/shenderson/GRPC/Google/grpc/git/grpc/src/core/ext/transport/chttp2/server/chttp2_server.cc","file_line":307,"referenced_errors":[{"created":"@1541005302.858443799","description":"Failed
>
> to add any wildcard
> listeners","file":"/home2/shenderson/GRPC/Google/grpc/git/grpc/src/core/lib/iomgr/tcp_server_posix.cc","file_line":324,"referenced_errors":[{"created":"@1541005302.858395680","description":"Unable
>
> to configure
> socket","fd":5,"file":"/home2/shenderson/GRPC/Google/grpc/git/grpc/src/core/lib/iomgr/tcp_server_utils_posix_common.cc","file_line":214,"referenced_errors":[{"created":"@1541005302.858378854","description":"OS
>
> Error","errno":98,"file":"/home2/shenderson/GRPC/Google/grpc/git/grpc/src/core/lib/iomgr/tcp_server_utils_posix_common.cc","file_line":187,"os_error":"Address
>
> already in
> use","syscall":"bind"}]},{"created":"@1541005302.858442040","description":"Unable
>
> to configure
> socket","fd":5,"file":"/home2/shenderson/GRPC/Google/grpc/git/grpc/src/core/lib/iomgr/tcp_server_utils_posix_common.cc","file_line":214,"referenced_errors":[{"created":"@1541005302.858431608","description":"OS
>
> Error","errno":98,"file":"/home2/shenderson/GRPC/Google/grpc/git/grpc/src/core/lib/iomgr/tcp_server_utils_posix_common.cc","file_line":187,"os_error":"Address
>
> already in use","syscall":"bind"}]}]}]}
> Segmentation fault (core dumped)
>
> I understand that the error stems from an unsuccessful socket bind. What I
> don't understand is whether I should check some error condition in my own
> code above, or whether it's the gRPC implementation that wrongly ignores
> this error internally, later causing the crash.
>
> I'm running gRPC 1.14.0 (on Linux).
>
> Is this a known issue ?
>
> Thanks,
> Stefan
>
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