@SuppressWarnings("unchecked")
public synchronized void launch(NMCommunicatorLaunchRequestEvent event) {
LOG.info("Launching Container with Id: " + event.getContainerId());
if (this.state == ContainerState.KILLED_BEFORE_LAUNCH) {
state = ContainerState.DONE;
sendContainerLaunchFailedMsg(
event.getContainerId(), "Container was killed before it was launched");
return;
}
ContainerManagementProtocolProxyData proxy = null;
try {
proxy = getCMProxy(containerID, containerMgrAddress, containerToken);
// Construct the actual Container
ContainerLaunchContext containerLaunchContext = event.getContainerLaunchContext();
// Now launch the actual container
StartContainerRequest startRequest = Records.newRecord(StartContainerRequest.class);
startRequest.setContainerToken(event.getContainerToken());
startRequest.setContainerLaunchContext(containerLaunchContext);
StartContainersResponse response =
proxy
.getContainerManagementProtocol()
.startContainers(
StartContainersRequest.newInstance(Collections.singletonList(startRequest)));
if (response.getFailedRequests() != null && !response.getFailedRequests().isEmpty()) {
throw response.getFailedRequests().get(containerID).deSerialize();
}
// after launching, send launched event to task attempt to move
// it from ASSIGNED to RUNNING state
context.getEventHandler().handle(new AMContainerEventLaunched(containerID));
ContainerLaunchedEvent lEvt =
new ContainerLaunchedEvent(
containerID, clock.getTime(), context.getApplicationAttemptId());
context.getHistoryHandler().handle(new DAGHistoryEvent(null, lEvt));
this.state = ContainerState.RUNNING;
} catch (Throwable t) {
String message =
"Container launch failed for " + containerID + " : " + ExceptionUtils.getStackTrace(t);
this.state = ContainerState.FAILED;
sendContainerLaunchFailedMsg(containerID, message);
} finally {
if (proxy != null) {
cmProxy.mayBeCloseProxy(proxy);
}
}
}
