private async Task PrepareOnTheRestOfTheNodes(PrepareRequest request, Session session)
{
Host host;
HostDistance distance;
var lbp = session.Cluster.Configuration.Policies.LoadBalancingPolicy;
var tasks = new List <Task>();
var triedHosts = new Dictionary <IPEndPoint, Exception>();
while ((host = GetNextHost(lbp, out distance)) != null)
{
var connection = await RequestHandler
.GetConnectionFromHost(host, distance, session, triedHosts).ConfigureAwait(false);
if (connection == null)
{
continue;
}
// For each valid connection, send a the request in parallel
tasks.Add(connection.Send(request));
}
try
{
await Task.WhenAll(tasks).ConfigureAwait(false);
}
catch
{
// Don't consider individual failures
}
}
private async Task <Connection> GetNextConnection(Session session, Dictionary <IPEndPoint, Exception> triedHosts)
{
Host host;
HostDistance distance;
var lbp = session.Cluster.Configuration.Policies.LoadBalancingPolicy;
while ((host = GetNextHost(lbp, out distance)) != null)
{
var connection = await RequestHandler
.GetConnectionFromHost(host, distance, session, triedHosts).ConfigureAwait(false);
if (connection != null)
{
return(connection);
}
}
throw new NoHostAvailableException(triedHosts);
}
