@Override
public Boolean call() {
SchedulerStateManagerAdaptor statemgr = Runtime.schedulerStateManagerAdaptor(runtime);
TopologyAPI.Topology topology = Runtime.topology(runtime);
String topologyName = Context.topologyName(config);
// get the packed plan
packing.initialize(config, runtime);
PackingPlan packedPlan = packing.pack();
if (packedPlan == null) {
LOG.severe("Failed to pack a valid PackingPlan. Check the config.");
return false;
}
// Add the instanceDistribution to the runtime
Config ytruntime =
Config.newBuilder()
.putAll(runtime)
.put(Keys.instanceDistribution(), packedPlan.getInstanceDistribution())
.put(Keys.componentRamMap(), packedPlan.getComponentRamDistribution())
.build();
// initialize the launcher
launcher.initialize(config, ytruntime);
Boolean result;
// Set topology def first since we determine whether a topology is running
// by checking the existence of topology def
// store the trimmed topology definition into the state manager
result = statemgr.setTopology(trimTopology(topology), topologyName);
if (result == null || !result) {
LOG.severe("Failed to set topology definition");
return false;
}
// store the execution state into the state manager
ExecutionEnvironment.ExecutionState executionState = createExecutionState();
result = statemgr.setExecutionState(executionState, topologyName);
if (result == null || !result) {
LOG.severe("Failed to set execution state");
statemgr.deleteTopology(topologyName);
return false;
}
// launch the topology, clear the state if it fails
if (!launcher.launch(packedPlan)) {
statemgr.deleteExecutionState(topologyName);
statemgr.deleteTopology(topologyName);
LOG.log(Level.SEVERE, "Failed to launch topology");
return false;
}
return true;
}
