[SOLVED] Increase gRPC timeout in Go

Increase gRPC timeout in Go

There are a few gRPC calls that require the connection to remain connected for more than 5 minutes, which will be idle till the operation is complete.
I tried keepalive settings and even context.WithTimeout() but the gRPC connection gets timed out ater 5 minutes (code = Unknown desc = stream timeout")

How can i increase the idle timeout for such gRPC calls?

Solution

Have you tried,

clientDeadline := time.Now().Add(time.Duration(*deadlineMs) * time.Millisecond)
ctx, cancel := context.WithDeadline(ctx, clientDeadline)

like defined in official documentation of gRPC. Here is the https://grpc.io/blog/deadlines/ link.

Edit:

You can basically pass Enforcement Policy option to keep alive on the server-side as it is mentioned in the source code,

// EnforcementPolicy is used to set keepalive enforcement policy on the
// server-side. Server will close connection with a client that violates this
// policy.
type EnforcementPolicy struct {
    // MinTime is the minimum amount of time a client should wait before sending
    // a keepalive ping.
    MinTime time.Duration // The current default value is 5 minutes.
    // If true, server allows keepalive pings even when there are no active
    // streams(RPCs). If false, and client sends ping when there are no active
    // streams, server will send GOAWAY and close the connection.
    PermitWithoutStream bool // false by default.
}