/** @return Generated {@link WorkerInfo} for this worker */
public synchronized WorkerInfo generateClientWorkerInfo() {
WorkerInfo ret = new WorkerInfo();
ret.id = mId;
ret.address = mWorkerAddress;
ret.lastContactSec =
(int) ((CommonUtils.getCurrentMs() - mLastUpdatedTimeMs) / Constants.SECOND_MS);
ret.state = "In Service";
ret.capacityBytes = mCapacityBytes;
ret.usedBytes = mUsedBytes;
ret.startTimeMs = mStartTimeMs;
return ret;
}
public static void createDependency() throws IOException {
long startTimeMs = CommonUtils.getCurrentMs();
List<String> children = new ArrayList<String>();
for (int k = 0; k < sFiles; k++) {
children.add(sFileFolder + "/part-" + k);
}
List<ByteBuffer> data = new ArrayList<ByteBuffer>();
data.add(ByteBuffer.allocate(10));
int depId =
sTachyonClient.createDependency(
new ArrayList<String>(),
children,
"fake command",
data,
"BasicCheckpoint Dependency",
"Tachyon Examples",
"0.3",
DependencyType.Narrow.getValue(),
512 * Constants.MB);
CommonUtils.printTimeTakenMs(startTimeMs, LOG, "createDependency with depId " + depId);
}
@Override
public void heartbeat() {
LOG.debug("System status checking.");
TachyonConf conf = MasterContext.getConf();
int masterWorkerTimeoutMs = conf.getInt(Constants.MASTER_WORKER_TIMEOUT_MS);
synchronized (mBlocks) {
synchronized (mWorkers) {
Iterator<MasterWorkerInfo> iter = mWorkers.iterator();
while (iter.hasNext()) {
MasterWorkerInfo worker = iter.next();
final long lastUpdate = CommonUtils.getCurrentMs() - worker.getLastUpdatedTimeMs();
if (lastUpdate > masterWorkerTimeoutMs) {
LOG.error("The worker {} got timed out!", worker);
mLostWorkers.add(worker);
iter.remove();
processLostWorker(worker);
}
}
}
}
}
@Override
public void run() {
LOG.info("{}: Journal tailer started.", mMaster.getServiceName());
// Continually loop loading the checkpoint file, and then loading all completed files. The loop
// only repeats when the checkpoint file is updated after it was read.
while (!mInitiateShutdown) {
try {
// The start time (ms) for the initiated shutdown.
long waitForShutdownStart = -1;
// Load the checkpoint file.
LOG.info("{}: Waiting to load the checkpoint file.", mMaster.getServiceName());
mJournalTailer = new JournalTailer(mMaster, mJournal);
while (!mJournalTailer.checkpointExists()) {
CommonUtils.sleepMs(LOG, mJournalTailerSleepTimeMs);
if (mInitiateShutdown) {
LOG.info("Journal tailer has been shutdown while waiting to load the checkpoint file.");
mStopped = true;
return;
}
}
LOG.info("{}: Start loading the checkpoint file.", mMaster.getServiceName());
mJournalTailer.processJournalCheckpoint(true);
LOG.info("{}: Checkpoint file has been loaded.", mMaster.getServiceName());
// Continually process completed log files.
while (mJournalTailer.isValid()) {
if (mJournalTailer.processNextJournalLogFiles() > 0) {
// Reset the shutdown timer.
waitForShutdownStart = -1;
} else {
if (mInitiateShutdown) {
if (waitForShutdownStart == -1) {
waitForShutdownStart = CommonUtils.getCurrentMs();
} else if ((CommonUtils.getCurrentMs() - waitForShutdownStart)
> mShutdownQuietWaitTimeMs) {
// There have been no new logs for the quiet period. Shutdown now.
LOG.info(
"{}: Journal tailer has been shutdown. No new logs for the quiet period.",
mMaster.getServiceName());
mStopped = true;
return;
}
}
LOG.debug(
"{}: The next complete log file does not exist yet. "
+ "Sleeping and checking again.",
mMaster.getServiceName());
CommonUtils.sleepMs(LOG, mJournalTailerSleepTimeMs);
}
}
LOG.info(
"{}: The checkpoint is out of date. Will reload the checkpoint file.",
mMaster.getServiceName());
CommonUtils.sleepMs(LOG, mJournalTailerSleepTimeMs);
} catch (IOException ioe) {
// Log the error and continue the loop.
LOG.error(ioe.getMessage());
}
}
LOG.info("{}: Journal tailer has been shutdown.", mMaster.getServiceName());
mStopped = true;
}
public static void printTimeTakenMs(long startTimeMs, Logger logger, String message) {
logger.info(message + " took " + (CommonUtils.getCurrentMs() - startTimeMs) + " ms.");
}
