/** @throws Exception If failed. */
public void testDisabledRest() throws Exception {
restEnabled = false;
final Grid g = startGrid("disabled-rest");
try {
Thread.sleep(2 * TOP_REFRESH_FREQ);
// As long as we have round robin load balancer this will cause every node to be queried.
for (int i = 0; i < NODES_CNT + 1; i++)
assertEquals(NODES_CNT + 1, client.compute().refreshTopology(false, false).size());
final GridClientData data = client.data(PARTITIONED_CACHE_NAME);
// Check rest-disabled node is unavailable.
try {
String affKey;
do {
affKey = UUID.randomUUID().toString();
} while (!data.affinity(affKey).equals(g.localNode().id()));
data.put(affKey, "asdf");
assertEquals("asdf", cache(0, PARTITIONED_CACHE_NAME).get(affKey));
} catch (GridServerUnreachableException e) {
// Thrown for direct client-node connections.
assertTrue(
"Unexpected exception message: " + e.getMessage(),
e.getMessage()
.startsWith("No available endpoints to connect (is rest enabled for this node?)"));
} catch (GridClientException e) {
// Thrown for routed client-router-node connections.
String msg = e.getMessage();
assertTrue(
"Unexpected exception message: " + msg,
protocol() == GridClientProtocol.TCP
? msg.contains("No available endpoints to connect (is rest enabled for this node?)")
: // TCP router.
msg.startsWith(
"No available nodes on the router for destination node ID")); // HTTP router.
}
// Check rest-enabled nodes are available.
String affKey;
do {
affKey = UUID.randomUUID().toString();
} while (data.affinity(affKey).equals(g.localNode().id()));
data.put(affKey, "fdsa");
assertEquals("fdsa", cache(0, PARTITIONED_CACHE_NAME).get(affKey));
} finally {
restEnabled = true;
G.stop(g.name(), true);
}
}
/** @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. */
public void testInvalidateFlag() throws Exception {
GridEx g0 = grid(0);
GridCache<String, String> cache = g0.cache(PARTITIONED_CACHE_NAME);
String key = null;
for (int i = 0; i < 10_000; i++) {
if (!cache.affinity().isPrimaryOrBackup(g0.localNode(), String.valueOf(i))) {
key = String.valueOf(i);
break;
}
}
assertNotNull(key);
cache.put(key, key); // Create entry in near cache, it is invalidated if INVALIDATE flag is set.
assertNotNull(cache.peek(key));
GridClientData d = client.data(PARTITIONED_CACHE_NAME);
d.flagsOn(GridClientCacheFlag.INVALIDATE).put(key, "zzz");
for (Grid g : G.allGrids()) {
cache = g.cache(PARTITIONED_CACHE_NAME);
if (cache.affinity().isPrimaryOrBackup(g.localNode(), key))
assertEquals("zzz", cache.peek(key));
else assertNull(cache.peek(key));
}
}
/** @throws Exception If failed. */
public void testProjectionRun() throws Exception {
GridClientCompute dflt = client.compute();
Collection<? extends GridClientNode> nodes = dflt.nodes();
assertEquals(NODES_CNT, nodes.size());
for (int i = 0; i < NODES_CNT; i++) {
Grid g = grid(i);
assert g != null;
GridClientNode clientNode = dflt.node(g.localNode().id());
assertNotNull("Client node for " + g.localNode().id() + " was not found", clientNode);
GridClientCompute prj = dflt.projection(clientNode);
String res = prj.execute(TestTask.class.getName(), null);
assertNotNull(res);
assertEquals(g.localNode().id().toString(), res);
}
}
/**
* 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);
}
/**
* Calculates length of a given phrase on the grid.
*
* @param phrase Phrase to count the number of letters in.
* @throws GridException If failed.
*/
private static void countLettersReducer(String phrase) throws GridException {
X.println(">>> Starting countLettersReducer() example...");
Grid grid = G.grid();
// Logger to use in your closure. Note that even though we assign it
// to a local variable, GridGain still allows to use it from remotely
// executed code.
final GridLogger log = grid.log();
// Execute Hello World task.
int letterCnt =
grid.reduce(
BALANCE,
new GridClosure<String, Integer>() { // Create executable logic.
@Override
public Integer apply(String word) {
// Print out a given word, just so we can
// see which node is doing what.
log.info(">>> Calculating for word: " + word);
// Return the length of a given word, i.e. number of letters.
return word.length();
}
},
Arrays.asList(phrase.split(" ")), // Collection of words.
// Create custom reducer.
// NOTE: Alternatively, you can use existing reducer: F.sumIntReducer()
new GridReducer<Integer, Integer>() {
private int sum;
@Override
public boolean collect(Integer res) {
sum += res;
return true; // True means continue collecting until last result.
}
@Override
public Integer apply() {
return sum;
}
});
X.println(">>>");
X.println(">>> Finished execution of counting letters with reducer based on GridGain 3.0 API.");
X.println(">>> Total number of letters in the phrase is '" + letterCnt + "'.");
X.println(">>> You should see individual words printed out on different nodes.");
X.println(">>> Check all nodes for output (this node is also part of the grid).");
X.println(">>>");
}
/** @throws Exception If failed. */
public void testTopologyListener() throws Exception {
final Collection<UUID> added = new ArrayList<>(1);
final Collection<UUID> rmvd = new ArrayList<>(1);
final CountDownLatch addedLatch = new CountDownLatch(1);
final CountDownLatch rmvLatch = new CountDownLatch(1);
assertEquals(NODES_CNT, client.compute().refreshTopology(false, false).size());
GridClientTopologyListener lsnr =
new GridClientTopologyListener() {
@Override
public void onNodeAdded(GridClientNode node) {
added.add(node.nodeId());
addedLatch.countDown();
}
@Override
public void onNodeRemoved(GridClientNode node) {
rmvd.add(node.nodeId());
rmvLatch.countDown();
}
};
client.addTopologyListener(lsnr);
try {
Grid g = startGrid(NODES_CNT + 1);
UUID id = g.localNode().id();
assertTrue(addedLatch.await(2 * TOP_REFRESH_FREQ, MILLISECONDS));
assertEquals(1, added.size());
assertEquals(id, F.first(added));
stopGrid(NODES_CNT + 1);
assertTrue(rmvLatch.await(2 * TOP_REFRESH_FREQ, MILLISECONDS));
assertEquals(1, rmvd.size());
assertEquals(id, F.first(rmvd));
} finally {
client.removeTopologyListener(lsnr);
stopGrid(NODES_CNT + 1);
}
}
/** {@inheritDoc} */
@Override
protected Collection<? extends GridComputeJob> split(int gridSize, Object arg)
throws GridException {
Collection<GridComputeJobAdapter> jobs = new ArrayList<>(gridSize);
this.gridSize = gridSize;
final String locNodeId = grid.localNode().id().toString();
for (int i = 0; i < gridSize; i++) {
jobs.add(
new GridComputeJobAdapter() {
@SuppressWarnings("OverlyStrongTypeCast")
@Override
public Object execute() {
try {
Thread.sleep(1000);
} catch (InterruptedException ignored) {
Thread.currentThread().interrupt();
}
return new GridBiTuple<>(locNodeId, 1);
}
});
}
return jobs;
}
/**
* 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 schedule example started.");
// Schedule output message every minute.
GridSchedulerFuture<?> fut =
g.scheduler()
.scheduleLocal(
new Callable<Integer>() {
private int invocations;
@Override
public Integer call() {
invocations++;
try {
g.compute()
.broadcast(
new GridRunnable() {
@Override
public void run() {
System.out.println();
System.out.println("Howdy! :) ");
}
})
.get();
} catch (GridException e) {
throw new GridRuntimeException(e);
}
return invocations;
}
},
"{5, 3} * * * * *" // Cron expression.
);
while (!fut.isDone()) System.out.println(">>> Invocation #: " + fut.get());
System.out.println();
System.out.println(">>> Schedule future is done and has been unscheduled.");
System.out.println(">>> Check all nodes for hello message output.");
}
}
/**
* 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 testKeyMappingOnComputeNode() throws Exception {
try {
cache = true;
for (int i = 0; i < 4; i++) {
nearOnly = i == 0;
startGrid(i);
}
cache = false;
Grid compute = startGrid(4);
for (int i = 0; i < 100; i++) {
GridNode node = compute.mapKeyToNode(null, i);
assertFalse("For key: " + i, node.id().equals(compute.localNode().id()));
assertFalse("For key: " + i, node.id().equals(grid(0).localNode().id()));
}
} finally {
stopAllGrids();
}
}
/**
* Streams random prices into the system.
*
* @param g Grid.
* @throws GridException If failed.
*/
private static void streamData(final Grid g) throws GridException {
GridStreamer streamer = g.streamer("priceBars");
for (int i = 0; i < CNT; i++) {
for (int j = 0; j < INSTRUMENTS.length; j++) {
// Use gaussian distribution to ensure that
// numbers closer to 0 have higher probability.
double price = round2(INITIAL_PRICES[j] + RAND.nextGaussian());
Quote quote = new Quote(INSTRUMENTS[j], price);
streamer.addEvent(quote);
}
}
}
/** @throws Exception If failed. */
public void testAffinityExecute() throws Exception {
GridClientCompute dflt = client.compute();
GridClientData data = client.data(PARTITIONED_CACHE_NAME);
Collection<? extends GridClientNode> nodes = dflt.nodes();
assertEquals(NODES_CNT, nodes.size());
for (int i = 0; i < NODES_CNT; i++) {
Grid g = grid(i);
assert g != null;
int affinityKey = -1;
for (int key = 0; key < 10000; key++) {
if (g.localNode().id().equals(data.affinity(key))) {
affinityKey = key;
break;
}
}
if (affinityKey == -1)
throw new Exception("Unable to found key for which node is primary: " + g.localNode().id());
GridClientNode clientNode = dflt.node(g.localNode().id());
assertNotNull("Client node for " + g.localNode().id() + " was not found", clientNode);
String res =
dflt.affinityExecute(TestTask.class.getName(), PARTITIONED_CACHE_NAME, affinityKey, null);
assertNotNull(res);
assertEquals(g.localNode().id().toString(), res);
}
}
/**
* See <a href="http://e-docs.bea.com/wls/docs100/javadocs/weblogic/common/T3StartupDef.html">
* http://e-docs.bea.com/wls/docs100/javadocs/weblogic/common/T3StartupDef.html</a> for more
* information.
*
* @param str Virtual name by which the class is registered as a {@code startupClass} in the
* {@code config.xml} file
* @param params A hashtable that is made up of the name-value pairs supplied from the {@code
* startupArgs} property
* @return Result string (log message).
* @throws Exception Thrown if error occurred.
*/
@SuppressWarnings({"unchecked", "CatchGenericClass"})
@Override
public String startup(String str, Hashtable params) throws Exception {
GridLogger log = new GridJavaLogger(LoggingHelper.getServerLogger());
cfgFile = (String) params.get(cfgFilePathParam);
if (cfgFile == null) {
throw new IllegalArgumentException("Failed to read property: " + cfgFilePathParam);
}
String workMgrName = (String) params.get(workMgrParam);
URL cfgUrl = U.resolveGridGainUrl(cfgFile);
if (cfgUrl == null)
throw new ServerLifecycleException(
"Failed to find Spring configuration file (path provided should be "
+ "either absolute, relative to GRIDGAIN_HOME, or relative to META-INF folder): "
+ cfgFile);
GenericApplicationContext springCtx;
try {
springCtx = new GenericApplicationContext();
XmlBeanDefinitionReader xmlReader = new XmlBeanDefinitionReader(springCtx);
xmlReader.loadBeanDefinitions(new UrlResource(cfgUrl));
springCtx.refresh();
} catch (BeansException e) {
throw new ServerLifecycleException(
"Failed to instantiate Spring XML application context: " + e.getMessage(), e);
}
Map cfgMap;
try {
// Note: Spring is not generics-friendly.
cfgMap = springCtx.getBeansOfType(GridConfiguration.class);
} catch (BeansException e) {
throw new ServerLifecycleException(
"Failed to instantiate bean [type="
+ GridConfiguration.class
+ ", err="
+ e.getMessage()
+ ']',
e);
}
if (cfgMap == null)
throw new ServerLifecycleException(
"Failed to find a single grid factory configuration in: " + cfgUrl);
if (cfgMap.isEmpty())
throw new ServerLifecycleException("Can't find grid factory configuration in: " + cfgUrl);
try {
ExecutorService execSvc = null;
MBeanServer mbeanSrv = null;
for (GridConfiguration cfg : (Collection<GridConfiguration>) cfgMap.values()) {
assert cfg != null;
GridConfigurationAdapter adapter = new GridConfigurationAdapter(cfg);
// Set logger.
if (cfg.getGridLogger() == null) adapter.setGridLogger(log);
if (cfg.getExecutorService() == null) {
if (execSvc == null)
execSvc =
workMgrName != null
? new GridThreadWorkManagerExecutor(workMgrName)
: new GridThreadWorkManagerExecutor(J2EEWorkManager.getDefault());
adapter.setExecutorService(execSvc);
}
if (cfg.getMBeanServer() == null) {
if (mbeanSrv == null) {
InitialContext ctx = null;
try {
ctx = new InitialContext();
mbeanSrv = (MBeanServer) ctx.lookup("java:comp/jmx/runtime");
} catch (Exception e) {
throw new IllegalArgumentException(
"MBean server was not provided and failed to obtain " + "Weblogic MBean server.",
e);
} finally {
if (ctx != null) ctx.close();
}
}
adapter.setMBeanServer(mbeanSrv);
}
Grid grid = G.start(adapter, springCtx);
// Test if grid is not null - started properly.
if (grid != null) gridNames.add(grid.name());
}
return getClass().getSimpleName() + " started successfully.";
} catch (GridException e) {
// Stop started grids only.
for (String name : gridNames) G.stop(name, true);
throw new ServerLifecycleException("Failed to start GridGain.", e);
}
}