/** @throws Exception If failed. */
@SuppressWarnings("unchecked")
public void testCancel() throws Exception {
Grid grid = G.grid(getTestGridName());
grid.compute()
.localDeployTask(GridCancelTestTask.class, U.detectClassLoader(GridCancelTestTask.class));
GridComputeTaskFuture<?> fut = grid.compute().execute(GridCancelTestTask.class.getName(), null);
// Wait until jobs begin execution.
boolean await = startSignal.await(WAIT_TIME, TimeUnit.MILLISECONDS);
assert await : "Jobs did not start.";
info("Test task result: " + fut);
assert fut != null;
// Only first job should successfully complete.
Object res = fut.get();
assert (Integer) res == 1;
// Wait for all jobs to finish.
await = stopSignal.await(WAIT_TIME, TimeUnit.MILLISECONDS);
assert await : "Jobs did not stop.";
// One is definitely processed. But there might be some more processed or cancelled or processed
// and cancelled.
// Thus total number should be at least SPLIT_COUNT and at most (SPLIT_COUNT - 1) *2 +1
assert (cancelCnt + processedCnt) >= SPLIT_COUNT
&& (cancelCnt + processedCnt) <= (SPLIT_COUNT - 1) * 2 + 1
: "Invalid cancel count value: " + cancelCnt;
}
/** @throws Exception If failed. */
@SuppressWarnings({"ObjectEquality"})
public void testUndeployedTask() throws Exception {
Grid grid1 = null;
Grid grid2 = null;
try {
grid1 = startGrid(1, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid2 = startGrid(2, new GridSpringResourceContextImpl(new GenericApplicationContext()));
// Execute tasks.
grid1.compute().execute(SharedResourceTask1.class, null).get();
grid1.compute().execute(SharedResourceTask2.class, null).get();
grid1.compute().undeployTask(SharedResourceTask1.class.getName());
// Wait until resources get undeployed remotely
// because undeploy is asynchronous apply.
Thread.sleep(3000);
// 1 local and 1 remote resource instances
checkUsageCount(createClss, UserResource1.class, 4);
checkUsageCount(deployClss, UserResource1.class, 4);
checkUsageCount(createClss, UserResource2.class, 4);
checkUsageCount(deployClss, UserResource2.class, 4);
checkUsageCount(undeployClss, UserResource1.class, 4);
checkUsageCount(undeployClss, UserResource2.class, 4);
grid1.compute().undeployTask(SharedResourceTask2.class.getName());
// Wait until resources get undeployed remotely
// because undeploy is asynchronous apply.
Thread.sleep(3000);
// We undeployed last task for this class loader and resources.
// All resources should be undeployed.
checkUsageCount(undeployClss, UserResource1.class, 4);
checkUsageCount(undeployClss, UserResource2.class, 4);
// Execute the same tasks.
grid1.compute().execute(SharedResourceTask1.class, null).get();
grid1.compute().execute(SharedResourceTask2.class, null).get();
// 2 new resources.
checkUsageCount(createClss, UserResource1.class, 8);
checkUsageCount(deployClss, UserResource1.class, 8);
checkUsageCount(createClss, UserResource2.class, 8);
checkUsageCount(deployClss, UserResource2.class, 8);
} finally {
GridTestUtils.close(grid1, log());
GridTestUtils.close(grid2, log());
}
checkUsageCount(undeployClss, UserResource1.class, 8);
checkUsageCount(undeployClss, UserResource2.class, 8);
}
/** @throws Exception If failed. */
@SuppressWarnings({"ObjectEquality"})
public void testDifferentTasks() throws Exception {
Grid grid1 = null;
Grid grid2 = null;
try {
grid1 = startGrid(1, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid2 = startGrid(2, new GridSpringResourceContextImpl(new GenericApplicationContext()));
// Execute different tasks.
grid1.compute().execute(SharedResourceTask1.class, null).get();
grid1.compute().execute(SharedResourceTask2.class, null).get();
// In ISOLATED_CLASSLOADER mode tasks should have the class
// loaders because they have the same CL locally and thus the same
// resources.
// So 1 resource locally and 1 remotely
assert task1Rsrc1 == task2Rsrc1;
assert task1Rsrc2 == task2Rsrc2;
assert task1Rsrc3 == task2Rsrc3;
assert task1Rsrc4 == task2Rsrc4;
checkUsageCount(createClss, UserResource1.class, 4);
checkUsageCount(createClss, UserResource2.class, 4);
checkUsageCount(deployClss, UserResource1.class, 4);
checkUsageCount(deployClss, UserResource2.class, 4);
} finally {
GridTestUtils.close(grid1, log());
GridTestUtils.close(grid2, log());
}
checkUsageCount(undeployClss, UserResource1.class, 4);
checkUsageCount(undeployClss, UserResource2.class, 4);
}
/**
* Ensure that {@link GridComputeJobMasterLeaveAware} callback is invoked on job which is
* initiated by master and is currently running on it.
*
* @throws Exception If failed.
*/
public void testLocalJobOnMaster() throws Exception {
invokeLatch = new CountDownLatch(1);
jobLatch = new CountDownLatch(1);
Grid g = startGrid(0);
g.compute().execute(new TestTask(1), null);
jobLatch.await();
// Count down the latch in a separate thread.
new Thread(
new Runnable() {
@Override
public void run() {
try {
U.sleep(500);
} catch (GridInterruptedException ignore) {
// No-op.
}
latch.countDown();
}
})
.start();
stopGrid(0, true);
latch.countDown();
assert invokeLatch.await(5000, MILLISECONDS);
}
/** @throws Exception If failed. */
public void testSameTaskFromTwoNodesLeft() throws Exception {
Grid grid1 = null;
Grid grid2 = null;
Grid grid3 = null;
try {
grid1 = startGrid(1, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid2 = startGrid(2, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid3 = startGrid(3, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid1.compute().execute(SharedResourceTask1.class, null).get();
grid2.compute().execute(SharedResourceTask1.class, null).get();
checkUsageCount(createClss, UserResource1.class, 6);
checkUsageCount(deployClss, UserResource1.class, 6);
checkUsageCount(createClss, UserResource2.class, 6);
checkUsageCount(deployClss, UserResource2.class, 6);
checkUsageCount(undeployClss, UserResource1.class, 0);
checkUsageCount(undeployClss, UserResource2.class, 0);
GridTestUtils.close(grid1, log());
// Wait until other nodes get notified
// this grid1 left.
Thread.sleep(1000);
// Undeployment happened only on Grid1.
checkUsageCount(undeployClss, UserResource1.class, 2);
checkUsageCount(undeployClss, UserResource2.class, 2);
GridTestUtils.close(grid2, log());
// Wait until resources get undeployed remotely
// because undeploy is asynchronous apply.
Thread.sleep(1000);
// Grid1 and Grid2
checkUsageCount(undeployClss, UserResource1.class, 4);
checkUsageCount(undeployClss, UserResource2.class, 4);
} finally {
GridTestUtils.close(grid1, log());
GridTestUtils.close(grid2, log());
GridTestUtils.close(grid3, log());
}
}
/** @throws Exception If failed. */
@SuppressWarnings("unchecked")
public void testRedeployedTask() throws Exception {
Grid grid = startGrid(0, new GridSpringResourceContextImpl(new GenericApplicationContext()));
try {
// Execute same task with different class loaders. Second execution should redeploy first one.
grid.compute().execute(SharedResourceTask1.class, null).get();
checkUsageCount(createClss, UserResource1.class, 2);
checkUsageCount(createClss, UserResource2.class, 2);
checkUsageCount(deployClss, UserResource1.class, 2);
checkUsageCount(deployClss, UserResource2.class, 2);
// Change class loader of the task. So it's just implicit redeploy.
ClassLoader tstClsLdr =
new GridTestClassLoader(
null,
getClass().getClassLoader(),
SharedResourceTask1.class.getName(),
GridResourceSharedUndeploySelfTest.SharedResourceTask1.GridSharedJob1.class.getName(),
GridResourceSharedUndeploySelfTest.class.getName());
Class<? extends GridComputeTask<Object, Object>> taskCls =
(Class<? extends GridComputeTask<Object, Object>>)
tstClsLdr.loadClass(SharedResourceTask1.class.getName());
grid.compute().execute(taskCls, null).get();
// Old resources should be undeployed at this point.
checkUsageCount(undeployClss, UserResource1.class, 2);
checkUsageCount(undeployClss, UserResource2.class, 2);
// We should detect redeployment and create new resources.
checkUsageCount(createClss, UserResource1.class, 4);
checkUsageCount(createClss, UserResource2.class, 4);
checkUsageCount(deployClss, UserResource1.class, 4);
checkUsageCount(deployClss, UserResource2.class, 4);
} finally {
GridTestUtils.close(grid, log());
}
checkUsageCount(undeployClss, UserResource1.class, 4);
checkUsageCount(undeployClss, UserResource2.class, 4);
}
/** @throws Exception If failed. */
public void testSameTaskFromTwoNodesUndeploy() throws Exception {
Grid grid1 = null;
Grid grid2 = null;
Grid grid3 = null;
try {
grid1 = startGrid(1, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid2 = startGrid(2, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid3 = startGrid(3, new GridSpringResourceContextImpl(new GenericApplicationContext()));
grid1.compute().execute(SharedResourceTask1.class, null).get();
grid2.compute().execute(SharedResourceTask1.class, null).get();
checkUsageCount(createClss, UserResource1.class, 6);
checkUsageCount(deployClss, UserResource1.class, 6);
checkUsageCount(createClss, UserResource2.class, 6);
checkUsageCount(deployClss, UserResource2.class, 6);
checkUsageCount(undeployClss, UserResource1.class, 0);
checkUsageCount(undeployClss, UserResource2.class, 0);
grid1.compute().undeployTask(SharedResourceTask1.class.getName());
// Wait until resources get undeployed remotely
// because undeploy is asynchronous apply.
Thread.sleep(3000);
checkUsageCount(undeployClss, UserResource1.class, 6);
checkUsageCount(undeployClss, UserResource2.class, 6);
grid2.compute().undeployTask(SharedResourceTask1.class.getName());
// Wait until resources get undeployed remotely
// because undeploy is asynchronous apply.
Thread.sleep(3000);
// All Tasks from originating nodes were undeployed. All resources should be cleaned up.
checkUsageCount(undeployClss, UserResource1.class, 6);
checkUsageCount(undeployClss, UserResource2.class, 6);
} finally {
GridTestUtils.close(grid1, log());
GridTestUtils.close(grid2, log());
GridTestUtils.close(grid3, log());
}
}
/** @throws Exception If failed. */
public void testDifferentTaskNameLocally() throws Exception {
Grid grid = startGrid(0, new GridSpringResourceContextImpl(new GenericApplicationContext()));
// Versions are different - should not share
// 2 resource created locally
try {
grid.compute().execute(SharedResourceTask1Version1.class, null).get();
try {
grid.compute().execute(SharedResourceTask1Version2.class, null).get();
assert false : "SharedResourceTask4 should not be allowed to deploy.";
} catch (GridException e) {
info("Received expected exception: " + e);
}
} finally {
GridTestUtils.close(grid, log());
}
}
/**
* Tests that failover don't pick local node if it has been excluded from topology.
*
* @throws Exception If failed.
*/
@SuppressWarnings({"WaitNotInLoop", "UnconditionalWait", "unchecked"})
public void testFailoverTopology() throws Exception {
try {
Grid grid1 = startGrid(1);
Grid grid2 = startGrid(2);
assert grid1 != null;
assert grid2 != null;
grid1.compute().localDeployTask(JobTask.class, JobTask.class.getClassLoader());
try {
GridComputeTaskFuture<String> fut;
synchronized (mux) {
fut = grid1.compute().execute(JobTask.class, null);
mux.wait();
}
stopAndCancelGrid(2);
String res = fut.get();
info("Task result: " + res);
} catch (GridException e) {
info("Got unexpected grid exception: " + e);
}
info("Failed over: " + failCnt.get());
assert failCnt.get() == 1
: "Invalid fail over counter [expected=1, actual=" + failCnt.get() + ']';
} finally {
stopGrid(1);
// Stopping stopped instance just in case.
stopGrid(2);
}
}
/**
* Executes example.
*
* @param args Command line arguments, none required.
* @throws GridException If example execution failed.
*/
public static void main(String[] args) throws GridException {
try (Grid g = GridGain.start("examples/config/example-compute.xml")) {
System.out.println();
System.out.println("Compute reducer example started.");
Integer sum =
g.compute()
.apply(
new GridClosure<String, Integer>() {
@Override
public Integer apply(String word) {
System.out.println();
System.out.println(">>> Printing '" + word + "' on this node from grid job.");
// Return number of letters in the word.
return word.length();
}
},
// Job parameters. GridGain will create as many jobs as there are parameters.
Arrays.asList("Count characters using reducer".split(" ")),
// Reducer to process results as they come.
new GridReducer<Integer, Integer>() {
private AtomicInteger sum = new AtomicInteger();
// Callback for every job result.
@Override
public boolean collect(Integer len) {
sum.addAndGet(len);
// Return true to continue waiting until all results are received.
return true;
}
// Reduce all results into one.
@Override
public Integer reduce() {
return sum.get();
}
})
.get();
System.out.println();
System.out.println(">>> Total number of characters in the phrase is '" + sum + "'.");
System.out.println(">>> Check all nodes for output (this node is also part of the grid).");
}
}
/**
* Executes example.
*
* @param args Command line arguments, none required.
* @throws GridException If example execution failed.
*/
public static void main(String[] args) throws Exception {
Timer timer = new Timer("priceBars");
// Start grid.
final Grid g = GridGain.start("examples/config/example-streamer.xml");
System.out.println();
System.out.println(">>> Streaming price bars example started.");
try {
TimerTask task = scheduleQuery(g, timer);
streamData(g);
// Force one more run to get final results.
task.run();
timer.cancel();
// Reset all streamers on all nodes to make sure that
// consecutive executions start from scratch.
g.compute()
.broadcast(
new Runnable() {
@Override
public void run() {
if (!ExamplesUtils.hasStreamer(g, "priceBars"))
System.err.println(
"Default streamer not found (is example-streamer.xml "
+ "configuration used on all nodes?)");
else {
GridStreamer streamer = g.streamer("priceBars");
System.out.println("Clearing bars from streamer.");
streamer.reset();
}
}
})
.get();
} finally {
GridGain.stop(true);
}
}
/** @throws Exception If failed. */
public void testSameTaskLocally() throws Exception {
Grid grid = startGrid(0, new GridSpringResourceContextImpl(new GenericApplicationContext()));
try {
// Execute the same task twice.
// 1 resource created locally
grid.compute().execute(SharedResourceTask1.class, null).get();
grid.compute().execute(SharedResourceTask1.class, null).get();
checkUsageCount(createClss, UserResource1.class, 2);
checkUsageCount(createClss, UserResource2.class, 2);
checkUsageCount(deployClss, UserResource1.class, 2);
checkUsageCount(deployClss, UserResource2.class, 2);
} finally {
GridTestUtils.close(grid, log());
}
checkUsageCount(undeployClss, UserResource1.class, 2);
checkUsageCount(undeployClss, UserResource2.class, 2);
}
/**
* Listen to events that happen only on local node.
*
* @throws GridException If failed.
*/
private static void localListen() throws GridException {
Grid g = GridGain.grid();
// Register event listener for all local task execution events.
g.events()
.localListen(
new GridPredicate<GridEvent>() {
@Override
public boolean apply(GridEvent evt) {
GridTaskEvent taskEvt = (GridTaskEvent) evt;
System.out.println();
System.out.println(
"Git event notification [evt="
+ evt.name()
+ ", taskName="
+ taskEvt.taskName()
+ ']');
return true;
}
},
EVTS_TASK_EXECUTION);
// Generate task events.
g.compute()
.withName("example-event-task")
.run(
new GridRunnable() {
@Override
public void run() {
System.out.println();
System.out.println("Executing sample job.");
}
})
.get();
}