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node: shut down all node-related HTTP servers gracefully (#20956)

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Rather than just closing the underlying network listener to stop our
HTTP servers, use the graceful shutdown procedure, waiting for any
in-process requests to finish.
This commit is contained in:
Steven E. Harris
2020-04-27 05:16:00 -04:00
committed by GitHub
parent a070e23178
commit 40283d0522
4 changed files with 48 additions and 42 deletions
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7
cmd/clef/main.go
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@ -592,15 +592,16 @@ func signer(c *cli.Context) error {
// start http server
httpEndpoint := fmt.Sprintf("%s:%d", c.GlobalString(utils.RPCListenAddrFlag.Name), c.Int(rpcPortFlag.Name))
listener, err := node.StartHTTPEndpoint(httpEndpoint, rpc.DefaultHTTPTimeouts, handler)
httpServer, addr, err := node.StartHTTPEndpoint(httpEndpoint, rpc.DefaultHTTPTimeouts, handler)
if err != nil {
utils.Fatalf("Could not start RPC api: %v", err)
}
extapiURL = fmt.Sprintf("http://%v/", listener.Addr())
extapiURL = fmt.Sprintf("http://%v/", addr)
log.Info("HTTP endpoint opened", "url", extapiURL)
defer func() {
listener.Close()
// Don't bother imposing a timeout here.
httpServer.Shutdown(context.Background())
log.Info("HTTP endpoint closed", "url", extapiURL)
}()
}