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README: add KeepaliveParameters hint to FAQ (#3465)

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This error can happen when long lived streams are used
together with KeepaliveParameters that regularly
shut down existing connections.
This commit is contained in:
Johan Brandhorst
2020-03-18 15:55:20 +00:00
committed by GitHub
parent 804ff443fc
commit b9b4456a0c
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README.md
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@ -130,6 +130,10 @@ possible reasons, including:
1. mis-configured transport credentials, connection failed on handshaking
1. bytes disrupted, possibly by a proxy in between
1. server shutdown
1. Keepalive parameters caused connection shutdown, for example if you have configured
your server to terminate connections regularly to [trigger DNS lookups](https://github.com/grpc/grpc-go/issues/3170#issuecomment-552517779).
If this is the case, you may want to increase your [MaxConnectionAgeGrace](https://pkg.go.dev/google.golang.org/grpc/keepalive?tab=doc#ServerParameters),
to allow longer RPC calls to finish.
It can be tricky to debug this because the error happens on the client side but
the root cause of the connection being closed is on the server side. Turn on