public synchronized void flush() throws MutationsRejectedException {
if (closed) throw new IllegalStateException("Closed");
Span span = Trace.start("flush");
try {
checkForFailures();
if (flushing) {
// some other thread is currently flushing, so wait
while (flushing && !somethingFailed) waitRTE();
checkForFailures();
return;
}
flushing = true;
startProcessing();
checkForFailures();
while (totalMemUsed > 0 && !somethingFailed) {
waitRTE();
}
flushing = false;
this.notifyAll();
checkForFailures();
} finally {
span.stop();
}
}
void addMutations(MutationSet mutationsToSend) {
Map<String, TabletServerMutations<Mutation>> binnedMutations =
new HashMap<String, TabletServerMutations<Mutation>>();
Span span = Trace.start("binMutations");
try {
long t1 = System.currentTimeMillis();
binMutations(mutationsToSend, binnedMutations);
long t2 = System.currentTimeMillis();
updateBinningStats(mutationsToSend.size(), (t2 - t1), binnedMutations);
} finally {
span.stop();
}
addMutations(binnedMutations);
}
private synchronized void addMutations(
Map<String, TabletServerMutations<Mutation>> binnedMutations) {
int count = 0;
// merge mutations into existing mutations for a tablet server
for (Entry<String, TabletServerMutations<Mutation>> entry : binnedMutations.entrySet()) {
String server = entry.getKey();
TabletServerMutations<Mutation> currentMutations = serversMutations.get(server);
if (currentMutations == null) {
serversMutations.put(server, entry.getValue());
} else {
for (Entry<KeyExtent, List<Mutation>> entry2 :
entry.getValue().getMutations().entrySet()) {
for (Mutation m : entry2.getValue()) {
currentMutations.addMutation(entry2.getKey(), m);
}
}
}
if (log.isTraceEnabled())
for (Entry<KeyExtent, List<Mutation>> entry2 : entry.getValue().getMutations().entrySet())
count += entry2.getValue().size();
}
if (count > 0 && log.isTraceEnabled())
log.trace(
String.format(
"Started sending %,d mutations to %,d tablet servers",
count, binnedMutations.keySet().size()));
// randomize order of servers
ArrayList<String> servers = new ArrayList<String>(binnedMutations.keySet());
Collections.shuffle(servers);
for (String server : servers)
if (!queued.contains(server)) {
sendThreadPool.submit(Trace.wrap(new SendTask(server)));
queued.add(server);
}
}
public synchronized void close() throws MutationsRejectedException {
if (closed) return;
Span span = Trace.start("close");
try {
closed = true;
startProcessing();
while (totalMemUsed > 0 && !somethingFailed) {
waitRTE();
}
logStats();
checkForFailures();
} finally {
// make a best effort to release these resources
writer.sendThreadPool.shutdownNow();
jtimer.cancel();
span.stop();
}
}
public void send(TabletServerMutations<Mutation> tsm)
throws AccumuloServerException, AccumuloSecurityException {
MutationSet failures = null;
String oldName = Thread.currentThread().getName();
Map<KeyExtent, List<Mutation>> mutationBatch = tsm.getMutations();
try {
long count = 0;
for (List<Mutation> list : mutationBatch.values()) {
count += list.size();
}
String msg =
"sending "
+ String.format("%,d", count)
+ " mutations to "
+ String.format("%,d", mutationBatch.size())
+ " tablets at "
+ location;
Thread.currentThread().setName(msg);
Span span = Trace.start("sendMutations");
try {
TimeoutTracker timeoutTracker = timeoutTrackers.get(location);
if (timeoutTracker == null) {
timeoutTracker = new TimeoutTracker(location, timeout);
timeoutTrackers.put(location, timeoutTracker);
}
long st1 = System.currentTimeMillis();
failures = sendMutationsToTabletServer(location, mutationBatch, timeoutTracker);
long st2 = System.currentTimeMillis();
if (log.isTraceEnabled())
log.trace(
"sent "
+ String.format("%,d", count)
+ " mutations to "
+ location
+ " in "
+ String.format(
"%.2f secs (%,.2f mutations/sec) with %,d failures",
(st2 - st1) / 1000.0, count / ((st2 - st1) / 1000.0), failures.size()));
long successBytes = 0;
for (Entry<KeyExtent, List<Mutation>> entry : mutationBatch.entrySet()) {
for (Mutation mutation : entry.getValue()) {
successBytes += mutation.estimatedMemoryUsed();
}
}
if (failures.size() > 0) {
failedMutations.add(failures);
successBytes -= failures.getMemoryUsed();
}
updateSendStats(count, st2 - st1);
decrementMemUsed(successBytes);
} finally {
span.stop();
}
} catch (IOException e) {
if (log.isTraceEnabled())
log.trace("failed to send mutations to " + location + " : " + e.getMessage());
HashSet<String> tables = new HashSet<String>();
for (KeyExtent ke : mutationBatch.keySet()) tables.add(ke.getTableId().toString());
for (String table : tables)
TabletLocator.getLocator(instance, new Text(table)).invalidateCache(location);
failedMutations.add(location, tsm);
} finally {
Thread.currentThread().setName(oldName);
}
}
