@Override
public void run() {
try {
boolean running = true;
while (running) {
try {
// block on event availability
ThreadBoundEvent event = queue.take();
// add to the batch, and see if we can add more
batch.add(event);
if (maxBatchSize > 0) {
queue.drainTo(batch, maxBatchSize);
}
// check for the stop condition (and remove it)
// treat batches of 1 (the most common case) specially
if (batch.size() > 1) {
ListIterator<ThreadBoundEvent> itr = batch.listIterator();
while (itr.hasNext()) {
ThreadBoundEvent next = itr.next();
if (next.getClass().equals(ShutdownTask.class)) {
running = false;
((ShutdownTask) next).latch.countDown();
itr.remove();
}
}
eventProcessor.process(batch);
} else {
// just the one event, no need to iterate
if (event.getClass().equals(ShutdownTask.class)) {
running = false;
((ShutdownTask) event).latch.countDown();
} else {
eventProcessor.process(batch);
}
}
} catch (InterruptedException e) {
LOG.warn(
String.format(
"Consumer on queue %s interrupted.", Thread.currentThread().getName()));
// ignore
} catch (Throwable exception) {
LOG.error(
String.format(
"exception on queue %s while executing events",
Thread.currentThread().getName()),
exception);
} finally {
// reset the batch
batch.clear();
}
}
} catch (Throwable unexpectedThrowable) {
// we observed some cases where trying to log the inner exception threw an error
// don't use the logger here as that seems to be causing the problem in the first place
System.err.println("Caught and unexpected Throwable while logging");
System.err.println(
"This problem happens when jar files change at runtime, JVM might be UNSTABLE");
unexpectedThrowable.printStackTrace(System.err);
}
}
public void run() {
try {
for (; ; ) {
final Pair<Handler, Message> entry = eventQueue.take();
final Handler handler = entry.left;
final Message message = entry.right;
try {
// A message is either a command or an event.
// A command returns a value that must be read by
// the caller.
if (message instanceof Command<?>) {
Command<?> command = (Command<?>) message;
try {
Locus.push(command.getLocus());
Object result = command.call();
responseQueue.put(command, Pair.of(result, (Throwable) null));
} catch (PleaseShutdownException e) {
responseQueue.put(command, Pair.of(null, (Throwable) null));
return; // exit event loop
} catch (Throwable e) {
responseQueue.put(command, Pair.of(null, e));
} finally {
Locus.pop(command.getLocus());
}
} else {
Event event = (Event) message;
event.acceptWithoutResponse(handler);
// Broadcast the event to anyone who is interested.
RolapUtil.MONITOR_LOGGER.debug(message);
}
} catch (Throwable e) {
// REVIEW: Somewhere better to send it?
e.printStackTrace();
}
}
} catch (InterruptedException e) {
// REVIEW: Somewhere better to send it?
e.printStackTrace();
} catch (Throwable e) {
e.printStackTrace();
}
}
public void start(String[] args) throws Exception {
if (lineReader == null) {
lineReader = new DefaultLineReader();
}
running = true;
while (running) {
print("hazelcast[" + namespace + "] > ");
try {
final String command = lineReader.readLine();
handleCommand(command);
} catch (Throwable e) {
e.printStackTrace();
}
}
}
/** Submit exec into pool and throw exceptions */
public void execute() {
String p = project.getProperty("number.of.threads");
if (p != null) {
((ThreadPoolExecutor) threadPool).setCorePoolSize(Integer.parseInt(p));
((ThreadPoolExecutor) threadPool).setMaximumPoolSize(Integer.parseInt(p));
}
TaskRunnable tr = new TaskRunnable();
threadPool.submit(tr);
try {
synchronized (semaphore) {
while (!tr.isFinished()) semaphore.wait();
}
} catch (InterruptedException e) {
e.printStackTrace();
}
Throwable t = tr.getException();
if (t != null) {
if (t instanceof BuildException) throw (BuildException) t;
else t.printStackTrace();
}
}
public void _saveSettings() { // public for testing purposes
if (mySaveSettingsIsInProgress.compareAndSet(false, true)) {
try {
doSave();
} catch (final Throwable ex) {
if (isUnitTestMode()) {
System.out.println("Saving application settings failed");
ex.printStackTrace();
} else {
LOG.info("Saving application settings failed", ex);
invokeLater(
new Runnable() {
public void run() {
if (ex instanceof PluginException) {
final PluginException pluginException = (PluginException) ex;
PluginManager.disablePlugin(pluginException.getPluginId().getIdString());
Messages.showMessageDialog(
"The plugin "
+ pluginException.getPluginId()
+ " failed to save settings and has been disabled. Please restart "
+ ApplicationNamesInfo.getInstance().getFullProductName(),
CommonBundle.getErrorTitle(),
Messages.getErrorIcon());
} else {
Messages.showMessageDialog(
ApplicationBundle.message(
"application.save.settings.error", ex.getLocalizedMessage()),
CommonBundle.getErrorTitle(),
Messages.getErrorIcon());
}
}
});
}
} finally {
mySaveSettingsIsInProgress.set(false);
}
}
}
static void unexpected(Throwable t) {
failed++;
t.printStackTrace();
}
public synchronized RPC<V> call() {
// Any Completer will not be carried over to remote; add it to the RPC call
// so completion is signaled after the remote comes back.
CountedCompleter cc = _dt.getCompleter();
if (cc != null) handleCompleter(cc);
// If running on self, just submit to queues & do locally
if (_target == H2O.SELF) return handleLocal();
// Keep a global record, for awhile
if (_target != null) _target.taskPut(_tasknum, this);
try {
if (_nack) return this; // Racing Nack rechecked under lock; no need to send retry
// We could be racing timeouts-vs-replies. Blow off timeout if we have an answer.
if (isDone()) {
if (_target != null) _target.taskRemove(_tasknum);
return this;
}
// Default strategy: (re)fire the packet and (re)start the timeout. We
// "count" exactly 1 failure: just whether or not we shipped via TCP ever
// once. After that we fearlessly (re)send UDP-sized packets until the
// server replies.
// Pack classloader/class & the instance data into the outgoing
// AutoBuffer. If it fits in a single UDP packet, ship it. If not,
// finish off the current AutoBuffer (which is now going TCP style), and
// make a new UDP-sized packet. On a re-send of a TCP-sized hunk, just
// send the basic UDP control packet.
if (!_sentTcp) {
while (true) { // Retry loop for broken TCP sends
AutoBuffer ab = new AutoBuffer(_target, _dt.priority());
try {
final boolean t;
int offset = ab.position();
ab.putTask(UDP.udp.exec, _tasknum).put1(CLIENT_UDP_SEND);
ab.put(_dt);
t = ab.hasTCP();
assert sz_check(ab)
: "Resend of "
+ _dt.getClass()
+ " changes size from "
+ _size
+ " to "
+ ab.size()
+ " for task#"
+ _tasknum;
ab.close(); // Then close; send final byte
_sentTcp = t; // Set after close (and any other possible fail)
break; // Break out of retry loop
} catch (AutoBuffer.AutoBufferException e) {
Log.info(
"IOException during RPC call: "
+ e._ioe.getMessage()
+ ", AB="
+ ab
+ ", for task#"
+ _tasknum
+ ", waiting and retrying...");
ab.drainClose();
try {
Thread.sleep(500);
} catch (InterruptedException ignore) {
}
}
} // end of while(true)
} else {
// Else it was sent via TCP in a prior attempt, and we've timed out.
// This means the caller's ACK/answer probably got dropped and we need
// him to resend it (or else the caller is still processing our
// request). Send a UDP reminder - but with the CLIENT_TCP_SEND flag
// instead of the UDP send, and no DTask (since it previously went via
// TCP, no need to resend it).
AutoBuffer ab = new AutoBuffer(_target, _dt.priority()).putTask(UDP.udp.exec, _tasknum);
ab.put1(CLIENT_TCP_SEND).close();
}
// Double retry until we exceed existing age. This is the time to delay
// until we try again. Note that we come here immediately on creation,
// so the first doubling happens before anybody does any waiting. Also
// note the generous 5sec cap: ping at least every 5 sec.
_retry += (_retry < MAX_TIMEOUT) ? _retry : MAX_TIMEOUT;
// Put self on the "TBD" list of tasks awaiting Timeout.
// So: dont really 'forget' but remember me in a little bit.
// UDPTimeOutThread.PENDING.put(_tasknum, this);
return this;
} catch (Throwable t) {
t.printStackTrace();
throw Log.throwErr(t);
}
}
