Client.Timeout exceeded while awaiting headers

[Chaho12]

I notice that I get this error when my coordinator is in heavy load while reading data in rows.Next(). Is there a timeout while fetching rows.Next?

• I assume that there is issue while getting response from coordinator.

trino: query failed (0 ): "Get \"https://trino_url/v1/statement/executing/20240318_081907_03546_ch76y/y269bf9b085430f6e7d0222f3d8f2dc7309a9fdc9/1426\": context deadline exceeded (Client.Timeout exceeded while awaiting headers)"

My trinoclient is using retryable, and new Client uses default httpclient with default poold transport setting.

	retryClient := retryablehttp.NewClient()
	retryClient.Logger = nil
	TrinoClient = retryClient.StandardClient()

    defer rows.Close()
    if rows != nil {
        ....
        for rows.next() { 
            ...
            err := rows.Scan(results...)
            ...
        }
        err = rows.Err()
	if err != nil {
	    return err <-- error is logged here.
	}
    }

So, I was wondering is setting http.ClientTimeout recommded? or at least is it ok to set timeout? I couldn't find anything on timeout part.

I thought that if i don't set it, timeout is infinite and no error is responded.
This doesn't seem to work with retryable library, as it retries only on connection/server errors.

• https://github.com/hashicorp/go-retryablehttp/blob/main/client.go#L459-L470