/// <summary>
/// Picks a new configuration given a single SLA and single client's session state
/// </summary>
/// <param name="sla">The SLA for which the new configuration should be tailored</param>
/// <param name="ss">The session state</param>
/// <param name="constraints">The constraints</param>
/// <returns>a set of reconfiguration actions</returns>
public float ComputeUtilityGainFromNewConfiguration(string containerName, ServiceLevelAgreement sla, SessionState ss, ServerMonitor monitor, ReplicaConfiguration config, List <ConfigurationAction> actions)
{
Dictionary <string, ClientUsageData> clientData = new Dictionary <string, ClientUsageData>();
ClientUsageData usage = new ClientUsageData("local");
// Convert args into client data
usage.SLAs.Add(sla);
usage.NumberOfReads = ss.GetNumberOfReadsPerMonth();
usage.NumberOfWrites = ss.GetNumberOfWritesPerMonth();
usage.ServerRTTs = new Dictionary <string, LatencyDistribution>();
foreach (ServerState server in monitor.GetAllServersState())
{
usage.ServerRTTs.Add(server.Name, server.RTTs);
}
// Use client data for a single user
clientData.Add(usage.ClientName, usage);
return(ComputeUtilityGain(config, actions, clientData));
}
/// <summary>
/// Picks a new configuration given a single SLA and single client's session state
/// </summary>
/// <param name="sla">The SLA for which the new configuration should be tailored</param>
/// <param name="ss">The session state</param>
/// <param name="constraints">The constraints</param>
/// <returns>a set of reconfiguration actions</returns>
public List <ConfigurationAction> PickNewConfiguration(string containerName, ServiceLevelAgreement sla, SessionState ss, ServerMonitor monitor, ReplicaConfiguration config, List <ConfigurationConstraint> constraints)
{
Dictionary <string, ClientUsageData> clientData = new Dictionary <string, ClientUsageData>();
ClientUsageData usage = new ClientUsageData("local");
// Convert args into client data
usage.SLAs.Add(sla);
usage.NumberOfReads = ss.GetNumberOfReadsPerMonth();
usage.NumberOfWrites = ss.GetNumberOfWritesPerMonth();
usage.ServerRTTs = new Dictionary <string, LatencyDistribution>();
foreach (ServerState server in monitor.GetAllServersState())
{
usage.ServerRTTs.Add(server.Name, server.RTTs);
}
// Use client data for a single user
clientData.Add(usage.ClientName, usage);
// Choose actions to produce a better configuration
return(ChooseReconfigActions(clientData, constraints, config));
}
