/**
* Concat arrays in one.
*
* @param arrays Arrays.
* @return Summary array.
*/
public static int[] concat(int[]... arrays) {
assert arrays != null;
assert arrays.length > 1;
int len = 0;
for (int[] a : arrays) len += a.length;
int[] r = Arrays.copyOf(arrays[0], len);
for (int i = 1, shift = 0; i < arrays.length; i++) {
shift += arrays[i - 1].length;
System.arraycopy(arrays[i], 0, r, shift, arrays[i].length);
}
return r;
}
/**
* Grabs local events and detects if events was lost since last poll.
*
* @param ignite Target grid.
* @param evtOrderKey Unique key to take last order key from node local map.
* @param evtThrottleCntrKey Unique key to take throttle count from node local map.
* @param evtTypes Event types to collect.
* @param evtMapper Closure to map grid events to Visor data transfer objects.
* @return Collections of node events
*/
public static Collection<VisorGridEvent> collectEvents(
Ignite ignite,
String evtOrderKey,
String evtThrottleCntrKey,
final int[] evtTypes,
IgniteClosure<Event, VisorGridEvent> evtMapper) {
assert ignite != null;
assert evtTypes != null && evtTypes.length > 0;
ConcurrentMap<String, Long> nl = ignite.cluster().nodeLocalMap();
final long lastOrder = getOrElse(nl, evtOrderKey, -1L);
final long throttle = getOrElse(nl, evtThrottleCntrKey, 0L);
// When we first time arrive onto a node to get its local events,
// we'll grab only last those events that not older than given period to make sure we are
// not grabbing GBs of data accidentally.
final long notOlderThan = System.currentTimeMillis() - EVENTS_COLLECT_TIME_WINDOW;
// Flag for detecting gaps between events.
final AtomicBoolean lastFound = new AtomicBoolean(lastOrder < 0);
IgnitePredicate<Event> p =
new IgnitePredicate<Event>() {
/** */
private static final long serialVersionUID = 0L;
@Override
public boolean apply(Event e) {
// Detects that events were lost.
if (!lastFound.get() && (lastOrder == e.localOrder())) lastFound.set(true);
// Retains events by lastOrder, period and type.
return e.localOrder() > lastOrder
&& e.timestamp() > notOlderThan
&& F.contains(evtTypes, e.type());
}
};
Collection<Event> evts = ignite.events().localQuery(p);
// Update latest order in node local, if not empty.
if (!evts.isEmpty()) {
Event maxEvt = Collections.max(evts, EVTS_ORDER_COMPARATOR);
nl.put(evtOrderKey, maxEvt.localOrder());
}
// Update throttle counter.
if (!lastFound.get())
nl.put(evtThrottleCntrKey, throttle == 0 ? EVENTS_LOST_THROTTLE : throttle - 1);
boolean lost = !lastFound.get() && throttle == 0;
Collection<VisorGridEvent> res = new ArrayList<>(evts.size() + (lost ? 1 : 0));
if (lost) res.add(new VisorGridEventsLost(ignite.cluster().localNode().id()));
for (Event e : evts) {
VisorGridEvent visorEvt = evtMapper.apply(e);
if (visorEvt != null) res.add(visorEvt);
}
return res;
}
/** @throws Exception If failed. */
private void doTest() throws Exception {
System.gc();
System.gc();
System.gc();
try {
useCache = true;
startGridsMultiThreaded(GRID_CNT);
useCache = false;
Ignite ignite = startGrid();
final IgniteDataStreamer<Integer, String> ldr = ignite.dataStreamer(null);
ldr.perNodeBufferSize(8192);
ldr.receiver(DataStreamerCacheUpdaters.<Integer, String>batchedSorted());
ldr.autoFlushFrequency(0);
final LongAdder8 cnt = new LongAdder8();
long start = U.currentTimeMillis();
Thread t =
new Thread(
new Runnable() {
@SuppressWarnings("BusyWait")
@Override
public void run() {
while (true) {
try {
Thread.sleep(10000);
} catch (InterruptedException ignored) {
break;
}
info(">>> Adds/sec: " + cnt.sumThenReset() / 10);
}
}
});
t.setDaemon(true);
t.start();
int threadNum = 2; // Runtime.getRuntime().availableProcessors();
multithreaded(
new Callable<Object>() {
@SuppressWarnings("InfiniteLoopStatement")
@Override
public Object call() throws Exception {
ThreadLocalRandom8 rnd = ThreadLocalRandom8.current();
while (true) {
int i = rnd.nextInt(ENTRY_CNT);
ldr.addData(i, vals[rnd.nextInt(vals.length)]);
cnt.increment();
}
}
},
threadNum,
"loader");
info("Closing loader...");
ldr.close(false);
long duration = U.currentTimeMillis() - start;
info("Finished performance test. Duration: " + duration + "ms.");
} finally {
stopAllGrids();
}
}