void start() throws InterruptedException {
if (dependencies.size() > 0) {
synchronized (this) {
while (!canStart) {
this.wait(1000 * 60 * 3L);
if (dependenciesFailed) {
throw new TezUncheckedException(
"Skipping service start for "
+ service.getName()
+ " as dependencies failed to start");
}
}
}
}
if (LOG.isDebugEnabled()) {
LOG.debug("Service: " + service.getName() + " trying to start");
}
for (Service dependency : dependencies) {
if (!dependency.isInState(Service.STATE.STARTED)) {
LOG.info(
"Service: "
+ service.getName()
+ " not started because "
+ " service: "
+ dependency.getName()
+ " is in state: "
+ dependency.getServiceState());
return;
}
}
service.start();
}
/**
* Run a child service -initing and starting it if this service has already passed those parts of
* its own lifecycle
*
* @param service the service to start
*/
protected boolean deployChildService(Service service) {
service.init(getConfig());
addService(service);
if (isInState(STATE.STARTED)) {
service.start();
return true;
}
return false;
}