private void _SetBIOS(biosThreadState state)
{
// SCP some needed files to it.
copyDeploymentFilesToBlade(state.blade, state.biosxml, state.connectDeadline);
// And execute the command to deploy the BIOS via SSH.
using (hypervisor hyp = _hostManager.makeHypervisorForBlade_LTSP(state.blade))
{
executionResult res = hyp.startExecutable("bash", "~/applyBIOS.sh");
if (res.resultCode != 0)
{
string msg = string.Format("Executing applyBIOS.sh on {0} resulted in error code {1}", state.nodeIP, res.resultCode);
msg += "stdout: " + res.stdout;
msg += "stderr: " + res.stderr;
_hostManager.addLogEvent(msg);
state.result = new result(resultCode.genericFail, msg);
}
else
{
_hostManager.addLogEvent(string.Format("Deployed BIOS successfully to {0}", state.nodeIP));
using (var tmp = new tempLockElevation(state.blade, bladeLockType.lockNone, bladeLockType.lockBIOS))
{
_hostManager.markLastKnownBIOS(state.blade, state.biosxml);
}
state.result = new result(resultCode.success);
}
// All done, now we can power off and return.
hyp.powerOff(state.connectDeadline);
}
state.isFinished = true;
}
private result rebootAndStartPerformingBIOSOperation(string bladeIP, string biosxml, Action <biosThreadState> onCompletion, ManualResetEvent signalOnStartComplete)
{
// We need to:
// 1) set this blade to boot into LTSP
// 2) start the blade
// 3) wait for it to boot
// 4) SSH into it, and run conrep to configure the BIOS.
// Init this node to have a null threadState, ie, to be idle, but only if it isn't there already.
_currentlyDeployingNodes.TryAdd(bladeIP, null);
// Add a new bios thread state if the blade is currently idle.
bool failedToAdd = false; // FIXME: does this cause the lambda to leak?
biosThreadState newState = _currentlyDeployingNodes.AddOrUpdate(bladeIP, (biosThreadState)null, (key, oldVal) =>
{
// If the previously-existing deploy status is finished, we can just add a new one.
if (oldVal == null || oldVal.isFinished)
{
return(new biosThreadState(bladeIP, biosxml, bladeIP));
}
// Otherwise, oh no, another BIOS operation it is still in progress!
failedToAdd = true;
return(null);
});
// If we failed to add, then abort the request
if (failedToAdd)
{
return(new result(resultCode.bladeInUse, "Adding to _currentlyDeployingNodes failed"));
}
// Now, go ahead and spin up a new thread to handle this update, and start it.
newState.onBootFinish = onCompletion;
newState.onBootFailure = handleReadOrWriteBIOSError;
newState.isStarted = signalOnStartComplete;
newState.rebootThread = new Thread(ltspBootThread)
{
Name = "Booting " + bladeIP + " to LTSP"
};
newState.rebootThread.Start(newState);
signalOnStartComplete.WaitOne(); // ok so this method is sync, whatever
return(new result(resultCode.pending, "LTSP thread created"));
}
private void ltspBootThread(Object o)
{
biosThreadState param = (biosThreadState)o;
try
{
param.result = new result(resultCode.pending);
_ltspBootThreadStart(param);
}
catch (Exception e)
{
param.result = new result(resultCode.genericFail, e.Message);
}
finally
{
param.isFinished = true;
}
}
public void cancelOperationsForBlade(string bladeIP)
{
result res = checkBIOSOperationProgress(bladeIP);
if (res.code != resultCode.pending)
{
// None in progress.
return;
}
// Okay, this blade has a pending BIOS read/write. We need to request that the relevant thread exists, and not
// return until it has.
biosThreadState toCancel = _currentlyDeployingNodes[bladeIP];
while (!toCancel.isFinished)
{
toCancel.connectDeadline.markCancelled();
// If we can't cancel within 30 seconds, we write a crashdump so that an operator can work out why.
DateTime dumpTime = DateTime.Now + TimeSpan.FromSeconds(30);
while (!toCancel.isFinished)
{
_hostManager.addLogEvent("Waiting for BIOS operation on " + bladeIP + " to cancel");
if (DateTime.Now > dumpTime)
{
string dumpPath = Path.Combine(Settings.Default.internalErrorDumpPath, "slow_bios_" + Guid.NewGuid().ToString() + ".dmp");
_hostManager.addLogEvent(string.Format("Cancel has taken more than 30 seconds; writing dump '{0}'", dumpPath));
miniDumpUtils.dumpSelf(dumpPath);
dumpTime = DateTime.MaxValue;
}
Thread.Sleep(TimeSpan.FromSeconds(1));
}
}
biosThreadState foo;
_currentlyDeployingNodes.TryRemove(bladeIP, out foo);
}
private void setBIOS(biosThreadState state)
{
try
{
_SetBIOS(state);
}
catch (Exception e)
{
string msg = string.Format("Writing BIOS to {0} resulted in exception {1}", state.nodeIP, e);
_hostManager.addLogEvent(msg);
state.result = new result(resultCode.genericFail, msg);
using (var tmp = new tempLockElevation(state.blade, bladeLockType.lockNone, bladeLockType.lockBIOS))
{
_hostManager.markLastKnownBIOS(state.blade, "unknown");
}
state.isFinished = true;
}
}
private void _ltspBootThreadStart(biosThreadState param)
{
using (lockableBladeSpec blade = _hostManager.db.getBladeByIP(param.nodeIP, bladeLockType.lockBIOS, bladeLockType.lockBIOS,
permitAccessDuringBIOS: true, permitAccessDuringDeployment: true))
{
blade.spec.currentlyHavingBIOSDeployed = true;
}
param.connectDeadline = new cancellableDateTime(TimeSpan.FromMinutes(5));
param.isStarted.Set();
using (lockableBladeSpec blade = _hostManager.db.getBladeByIP(param.nodeIP,
bladeLockType.lockOwnership | bladeLockType.lockSnapshot,
bladeLockType.lockNone, permitAccessDuringBIOS: true, permitAccessDuringDeployment: true))
{
// Power cycle it
_hostManager.startBladePowerOff(blade, param.connectDeadline);
_hostManager.startBladePowerOn(blade, param.connectDeadline);
param.blade = blade;
// Wait for it to boot. Note that we don't ping the client repeatedly here - since the Ping class can cause
// a BSoD.. ;_; Instead, we wait for port 22 (SSH) to be open.
_hostManager.setCallbackOnTCPPortOpen(22, param.onBootFinishEvent, param.onBootFailureEvent, param.connectDeadline, param);
// Wait for the boot to either complete or to fail.
while (true)
{
if (!param.onBootFinishEvent.WaitOne(TimeSpan.FromMilliseconds(500)))
{
param.onBootFinish(param);
break;
}
if (!param.onBootFailureEvent.WaitOne(TimeSpan.FromMilliseconds(500)))
{
param.onBootFailure(param);
break;
}
}
}
}
private void _GetBIOS(biosThreadState state)
{
copyDeploymentFilesToBlade(state.blade, null, state.connectDeadline);
using (hypervisor hyp = _hostManager.makeHypervisorForBlade_LTSP(state.blade))
{
executionResult res = hyp.startExecutable("bash", "~/getBIOS.sh");
if (res.resultCode != 0)
{
string msg = string.Format("Executing getBIOS.sh on {0} resulted in error code {1}", state.nodeIP, res.resultCode);
msg += "stdout: " + res.stdout;
msg += "stderr: " + res.stderr;
_hostManager.addLogEvent(msg);
state.result = new result(resultCode.genericFail, msg);
}
else
{
string msg = string.Format("Deployed BIOS successfully to {0}", state.nodeIP);
_hostManager.addLogEvent(msg);
state.result = new result(resultCode.success, msg);
}
// Retrieve the output
state.biosxml = hyp.getFileFromGuest("currentbios.xml", state.connectDeadline);
// All done, now we can power off and return.
hyp.powerOff(state.connectDeadline);
}
using (var tmp = new tempLockElevation(state.blade, bladeLockType.lockNone, bladeLockType.lockBIOS))
{
_hostManager.markLastKnownBIOS(state.blade, state.biosxml);
}
state.isFinished = true;
}
public override void setCallbackOnTCPPortOpen(int port, ManualResetEvent onCompletion, ManualResetEvent onError, cancellableDateTime deadline, biosThreadState state)
{
lock (inProgressTCPConnects)
{
if (inProgressTCPConnects.ContainsKey(state.nodeIP))
{
throw new Exception("operation already in progress");
}
hostStateDBInProgressTCPConnect newInProg = new hostStateDBInProgressTCPConnect
{
biosUpdateEndpoint = new IPEndPoint(IPAddress.Parse(state.nodeIP), port),
biosUpdateConnectionEvent = onCompletion,
biosUpdateDeadline = deadline,
biosUpdateTimeoutEvent = onError,
biosCurrentThreadState = state,
biosUpdateSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)
};
inProgressTCPConnects.GetOrAdd(state.nodeIP, newInProg);
newInProg.biosUpdateSocket.BeginConnect(newInProg.biosUpdateEndpoint, TCPCallback, newInProg);
}
}
public override void setCallbackOnTCPPortOpen(int nodePort, ManualResetEvent onCompletion, ManualResetEvent onError, cancellableDateTime deadline, biosThreadState biosThreadState)
{
//if (onTCPConnectionAttempt.Invoke(biosThreadState.nodeIP, nodePort, onBootFinish, onError, deadline, biosThreadState))
onCompletion.Set();
//else
// onError.Set();
}
private static void handleReadOrWriteBIOSError(biosThreadState state)
{
state.result = new result(resultCode.genericFail, "handleReadOrWriteBIOSError called");
state.isFinished = true;
state.blade.spec.currentlyHavingBIOSDeployed = false;
}
