// Clean install requires machine be free of previous Fabric installations
private static bool CheckForCleanInstall(StandAloneInstallerJsonModelBase config, MachineHealthContainer machineHealthContainer, bool isForcedRun = false)
{
SFDeployerTrace.WriteNoise(StringResources.Info_BPANoFabric);
List <string> machineNamesTemp = StandaloneUtility.GetMachineNamesIncludingClient(machineHealthContainer.GetHealthyMachineNames());
var importantSettings = config.GetFabricSystemSettings();
string fabricDataRoot = importantSettings.ContainsKey(DMConstants.FabricDataRootString) ?
importantSettings[DMConstants.FabricDataRootString] :
null;
bool localMachineFailed = false;
Parallel.ForEach(
machineNamesTemp,
(string machineName) =>
{
bool result = true;
if (StandaloneUtility.IsFabricInstalled(machineName))
{
SFDeployerTrace.WriteError(StringResources.Error_BPAPreviousFabricExists, machineName);
result = false;
}
if (!isForcedRun)
{
if (fabricDataRoot != null)
{
IEnumerable <string> machineNodes = config.Nodes.Where(n => n.IPAddress == machineName).Select(n => n.NodeName);
foreach (string node in machineNodes)
{
string nodeDirectory;
if (StandaloneUtility.DataRootNodeExists(machineName, node, fabricDataRoot, out nodeDirectory))
{
SFDeployerTrace.WriteError(StringResources.Error_BPADataRootNodeExists, node, machineName, nodeDirectory);
result = false;
}
}
}
}
if (!result)
{
if (Helpers.IsLocalIpAddress(machineName))
{
localMachineFailed = true;
}
else
{
machineHealthContainer.MarkMachineAsUnhealthy(machineName);
}
}
});
if (localMachineFailed)
{
return(false);
}
return(machineHealthContainer.EnoughHealthyMachines());
}