private void runPhysicalPlan(final PhysicalPlan plan) throws ExecutionSetupException {
validatePlan(plan);
setupSortMemoryAllocations(plan);
acquireQuerySemaphore(plan);
final QueryWorkUnit work = getQueryWorkUnit(plan);
final List<PlanFragment> planFragments = work.getFragments();
final PlanFragment rootPlanFragment = work.getRootFragment();
assert queryId == rootPlanFragment.getHandle().getQueryId();
drillbitContext
.getWorkBus()
.addFragmentStatusListener(queryId, queryManager.getFragmentStatusListener());
drillbitContext
.getClusterCoordinator()
.addDrillbitStatusListener(queryManager.getDrillbitStatusListener());
logger.debug("Submitting fragments to run.");
// set up the root fragment first so we'll have incoming buffers available.
setupRootFragment(rootPlanFragment, work.getRootOperator());
setupNonRootFragments(planFragments);
drillbitContext.getAllocator().resetFragmentLimits(); // TODO a global effect for this query?!?
moveToState(QueryState.RUNNING, null);
logger.debug("Fragments running.");
}
/**
* Set up the root fragment (which will run locally), and submit it for execution.
*
* @param rootFragment
* @param rootOperator
* @throws ExecutionSetupException
*/
private void setupRootFragment(final PlanFragment rootFragment, final FragmentRoot rootOperator)
throws ExecutionSetupException {
@SuppressWarnings("resource")
final FragmentContext rootContext =
new FragmentContext(
drillbitContext,
rootFragment,
queryContext,
initiatingClient,
drillbitContext.getFunctionImplementationRegistry());
@SuppressWarnings("resource")
final IncomingBuffers buffers = new IncomingBuffers(rootFragment, rootContext);
rootContext.setBuffers(buffers);
queryManager.addFragmentStatusTracker(rootFragment, true);
rootRunner =
new FragmentExecutor(
rootContext,
rootFragment,
queryManager.newRootStatusHandler(rootContext, drillbitContext),
rootOperator);
final RootFragmentManager fragmentManager =
new RootFragmentManager(rootFragment.getHandle(), buffers, rootRunner);
if (buffers.isDone()) {
// if we don't have to wait for any incoming data, start the fragment runner.
bee.addFragmentRunner(fragmentManager.getRunnable());
} else {
// if we do, record the fragment manager in the workBus.
// TODO aren't we managing our own work? What does this do? It looks like this will never get
// run
drillbitContext.getWorkBus().addFragmentManager(fragmentManager);
}
}
/**
* Set up the root fragment (which will run locally), and submit it for execution.
*
* @param rootFragment
* @param rootOperator
* @throws ExecutionSetupException
*/
private void setupRootFragment(final PlanFragment rootFragment, final FragmentRoot rootOperator)
throws ExecutionSetupException {
@SuppressWarnings("resource")
final FragmentContext rootContext =
new FragmentContext(
drillbitContext,
rootFragment,
queryContext,
initiatingClient,
drillbitContext.getFunctionImplementationRegistry());
@SuppressWarnings("resource")
final IncomingBuffers buffers = new IncomingBuffers(rootFragment, rootContext);
rootContext.setBuffers(buffers);
queryManager.addFragmentStatusTracker(rootFragment, true);
final ControlTunnel tunnel =
drillbitContext.getController().getTunnel(queryContext.getCurrentEndpoint());
final FragmentExecutor rootRunner =
new FragmentExecutor(
rootContext,
rootFragment,
new FragmentStatusReporter(rootContext, tunnel),
rootOperator);
final RootFragmentManager fragmentManager =
new RootFragmentManager(rootFragment.getHandle(), buffers, rootRunner);
if (buffers.isDone()) {
// if we don't have to wait for any incoming data, start the fragment runner.
bee.addFragmentRunner(fragmentManager.getRunnable());
} else {
// if we do, record the fragment manager in the workBus.
drillbitContext.getWorkBus().addFragmentManager(fragmentManager);
}
}