@Override
public void run() {
plumber = initPlumber();
final Period intermediatePersistPeriod = config.getIntermediatePersistPeriod();
try {
plumber.startJob();
// Delay firehose connection to avoid claiming input resources while the plumber is starting
// up.
firehose = initFirehose();
long nextFlush = new DateTime().plus(intermediatePersistPeriod).getMillis();
while (firehose.hasMore()) {
InputRow inputRow = null;
try {
try {
inputRow = firehose.nextRow();
} catch (Exception e) {
log.debug(e, "thrown away line due to exception, considering unparseable");
metrics.incrementUnparseable();
continue;
}
boolean lateEvent = false;
boolean indexLimitExceeded = false;
try {
lateEvent = plumber.add(inputRow) == -1;
} catch (IndexSizeExceededException e) {
log.info("Index limit exceeded: %s", e.getMessage());
indexLimitExceeded = true;
}
if (indexLimitExceeded || lateEvent) {
metrics.incrementThrownAway();
log.debug("Throwing away event[%s]", inputRow);
if (indexLimitExceeded || System.currentTimeMillis() > nextFlush) {
plumber.persist(firehose.commit());
nextFlush = new DateTime().plus(intermediatePersistPeriod).getMillis();
}
continue;
}
final Sink sink = plumber.getSink(inputRow.getTimestampFromEpoch());
if ((sink != null && !sink.canAppendRow()) || System.currentTimeMillis() > nextFlush) {
plumber.persist(firehose.commit());
nextFlush = new DateTime().plus(intermediatePersistPeriod).getMillis();
}
metrics.incrementProcessed();
} catch (ParseException e) {
if (inputRow != null) {
log.error(e, "unparseable line: %s", inputRow);
}
metrics.incrementUnparseable();
}
}
} catch (RuntimeException e) {
log.makeAlert(
e,
"RuntimeException aborted realtime processing[%s]",
fireDepartment.getDataSchema().getDataSource())
.emit();
normalExit = false;
throw e;
} catch (Error e) {
log.makeAlert(
e,
"Exception aborted realtime processing[%s]",
fireDepartment.getDataSchema().getDataSource())
.emit();
normalExit = false;
throw e;
} finally {
CloseQuietly.close(firehose);
if (normalExit) {
plumber.finishJob();
plumber = null;
firehose = null;
}
}
}