public Container(ContainerLauncherImpl _enclosing, TaskAttemptId taId, ContainerId
containerID, string containerMgrAddress)
{
this._enclosing = _enclosing;
// store enough information to be able to cleanup the container
this.state = ContainerLauncherImpl.ContainerState.Prep;
this.taskAttemptID = taId;
this.containerMgrAddress = containerMgrAddress;
this.containerID = containerID;
}
public virtual void Kill()
{
lock (this)
{
if (this.state == ContainerLauncherImpl.ContainerState.Prep)
{
this.state = ContainerLauncherImpl.ContainerState.KilledBeforeLaunch;
}
else
{
if (!this.IsCompletelyDone())
{
ContainerLauncherImpl.Log.Info("KILLING " + this.taskAttemptID);
ContainerManagementProtocolProxy.ContainerManagementProtocolProxyData proxy = null;
try
{
proxy = this._enclosing.GetCMProxy(this.containerMgrAddress, this.containerID);
// kill the remote container if already launched
IList <ContainerId> ids = new AList <ContainerId>();
ids.AddItem(this.containerID);
StopContainersRequest request = StopContainersRequest.NewInstance(ids);
StopContainersResponse response = proxy.GetContainerManagementProtocol().StopContainers
(request);
if (response.GetFailedRequests() != null && response.GetFailedRequests().Contains
(this.containerID))
{
throw response.GetFailedRequests()[this.containerID].DeSerialize();
}
}
catch (Exception t)
{
// ignore the cleanup failure
string message = "cleanup failed for container " + this.containerID + " : " + StringUtils
.StringifyException(t);
this._enclosing.context.GetEventHandler().Handle(new TaskAttemptDiagnosticsUpdateEvent
(this.taskAttemptID, message));
ContainerLauncherImpl.Log.Warn(message);
}
finally
{
if (proxy != null)
{
this._enclosing.cmProxy.MayBeCloseProxy(proxy);
}
}
this.state = ContainerLauncherImpl.ContainerState.Done;
}
}
// after killing, send killed event to task attempt
this._enclosing.context.GetEventHandler().Handle(new TaskAttemptEvent(this.taskAttemptID
, TaskAttemptEventType.TaContainerCleaned));
}
}
public virtual void Launch(ContainerRemoteLaunchEvent @event)
{
lock (this)
{
ContainerLauncherImpl.Log.Info("Launching " + this.taskAttemptID);
if (this.state == ContainerLauncherImpl.ContainerState.KilledBeforeLaunch)
{
this.state = ContainerLauncherImpl.ContainerState.Done;
this._enclosing.SendContainerLaunchFailedMsg(this.taskAttemptID, "Container was killed before it was launched"
);
return;
}
ContainerManagementProtocolProxy.ContainerManagementProtocolProxyData proxy = null;
try
{
proxy = this._enclosing.GetCMProxy(this.containerMgrAddress, this.containerID);
// Construct the actual Container
ContainerLaunchContext containerLaunchContext = @event.GetContainerLaunchContext(
);
// Now launch the actual container
StartContainerRequest startRequest = StartContainerRequest.NewInstance(containerLaunchContext
, @event.GetContainerToken());
IList <StartContainerRequest> list = new AList <StartContainerRequest>();
list.AddItem(startRequest);
StartContainersRequest requestList = StartContainersRequest.NewInstance(list);
StartContainersResponse response = proxy.GetContainerManagementProtocol().StartContainers
(requestList);
if (response.GetFailedRequests() != null && response.GetFailedRequests().Contains
(this.containerID))
{
throw response.GetFailedRequests()[this.containerID].DeSerialize();
}
ByteBuffer portInfo = response.GetAllServicesMetaData()[ShuffleHandler.MapreduceShuffleServiceid
];
int port = -1;
if (portInfo != null)
{
port = ShuffleHandler.DeserializeMetaData(portInfo);
}
ContainerLauncherImpl.Log.Info("Shuffle port returned by ContainerManager for " +
this.taskAttemptID + " : " + port);
if (port < 0)
{
this.state = ContainerLauncherImpl.ContainerState.Failed;
throw new InvalidOperationException("Invalid shuffle port number " + port + " returned for "
+ this.taskAttemptID);
}
// after launching, send launched event to task attempt to move
// it from ASSIGNED to RUNNING state
this._enclosing.context.GetEventHandler().Handle(new TaskAttemptContainerLaunchedEvent
(this.taskAttemptID, port));
this.state = ContainerLauncherImpl.ContainerState.Running;
}
catch (Exception t)
{
string message = "Container launch failed for " + this.containerID + " : " + StringUtils
.StringifyException(t);
this.state = ContainerLauncherImpl.ContainerState.Failed;
this._enclosing.SendContainerLaunchFailedMsg(this.taskAttemptID, message);
}
finally
{
if (proxy != null)
{
this._enclosing.cmProxy.MayBeCloseProxy(proxy);
}
}
}
}
