/**
* Creates a new instance of {@link FileSystemWorker}.
*
* @param blockDataManager a block data manager handle
* @throws IOException if an I/O error occurs
*/
public FileSystemWorker(BlockDataManager blockDataManager) throws IOException {
super(
Executors.newFixedThreadPool(
3, ThreadFactoryUtils.build("file-system-worker-heartbeat-%d", true)));
Preconditions.checkState(WorkerIdRegistry.getWorkerId() != 0, "Failed to register worker");
mTachyonConf = WorkerContext.getConf();
mFileDataManager = new FileDataManager(Preconditions.checkNotNull(blockDataManager));
// Setup MasterClientBase
mFileSystemMasterWorkerClient =
new FileSystemMasterClient(
NetworkAddressUtils.getConnectAddress(ServiceType.MASTER_RPC, mTachyonConf),
mTachyonConf);
}
/**
* Commits a block to Tachyon managed space. The block must be temporary. The block is persisted
* after {@link BlockStore#commitBlock(long, long)}. The block will not be accessible until {@link
* WorkerBlockMasterClient#commitBlock} succeeds.
*
* @param sessionId The id of the client
* @param blockId The id of the block to commit
* @throws BlockAlreadyExistsException if blockId already exists in committed blocks
* @throws BlockDoesNotExistException if the temporary block cannot be found
* @throws InvalidWorkerStateException if blockId does not belong to sessionId
* @throws IOException if the block cannot be moved from temporary path to committed path
* @throws WorkerOutOfSpaceException if there is no more space left to hold the block
*/
public void commitBlock(long sessionId, long blockId)
throws BlockAlreadyExistsException, BlockDoesNotExistException, InvalidWorkerStateException,
IOException, WorkerOutOfSpaceException {
mBlockStore.commitBlock(sessionId, blockId);
// TODO(calvin): Reconsider how to do this without heavy locking.
// Block successfully committed, update master with new block metadata
Long lockId = mBlockStore.lockBlock(sessionId, blockId);
try {
BlockMeta meta = mBlockStore.getBlockMeta(sessionId, blockId, lockId);
BlockStoreLocation loc = meta.getBlockLocation();
Long length = meta.getBlockSize();
BlockStoreMeta storeMeta = mBlockStore.getBlockStoreMeta();
Long bytesUsedOnTier = storeMeta.getUsedBytesOnTiers().get(loc.tierAlias());
mBlockMasterClient.commitBlock(
WorkerIdRegistry.getWorkerId(), bytesUsedOnTier, loc.tierAlias(), blockId, length);
} catch (IOException ioe) {
throw new IOException("Failed to commit block to master.", ioe);
} finally {
mBlockStore.unlockBlock(lockId);
}
}
public void start() throws IOException {
int numLevels = 1;
mTachyonHome =
File.createTempFile("Tachyon", "U" + System.currentTimeMillis()).getAbsolutePath();
mWorkerDataFolder = "/datastore";
mHostname = NetworkAddressUtils.getLocalHostName(100);
mMasterConf = MasterContext.getConf();
mMasterConf.set(Constants.IN_TEST_MODE, "true");
mMasterConf.set(Constants.TACHYON_HOME, mTachyonHome);
mMasterConf.set(Constants.ZOOKEEPER_ENABLED, "true");
mMasterConf.set(Constants.MASTER_HOSTNAME, mHostname);
mMasterConf.set(Constants.MASTER_BIND_HOST, mHostname);
mMasterConf.set(Constants.MASTER_PORT, "0");
mMasterConf.set(Constants.MASTER_WEB_BIND_HOST, mHostname);
mMasterConf.set(Constants.MASTER_WEB_PORT, "0");
mMasterConf.set(Constants.ZOOKEEPER_ADDRESS, mCuratorServer.getConnectString());
mMasterConf.set(Constants.ZOOKEEPER_ELECTION_PATH, "/election");
mMasterConf.set(Constants.ZOOKEEPER_LEADER_PATH, "/leader");
mMasterConf.set(Constants.USER_QUOTA_UNIT_BYTES, "10000");
mMasterConf.set(Constants.USER_BLOCK_SIZE_BYTES_DEFAULT, Integer.toString(mUserBlockSize));
mMasterConf.set(Constants.MASTER_TTLCHECKER_INTERVAL_MS, Integer.toString(1000));
// Since tests are always running on a single host keep the resolution timeout low as otherwise
// people running with strange network configurations will see very slow tests
mMasterConf.set(Constants.NETWORK_HOST_RESOLUTION_TIMEOUT_MS, "250");
// Disable hdfs client caching to avoid file system close() affecting other clients
System.setProperty("fs.hdfs.impl.disable.cache", "true");
// re-build the dir to set permission to 777
deleteDir(mTachyonHome);
mkdir(mTachyonHome);
for (int k = 0; k < mNumOfMasters; k++) {
final LocalTachyonMaster master = LocalTachyonMaster.create(mTachyonHome);
master.start();
LOG.info(
"master NO.{} started, isServing: {}, address: {}",
k,
master.isServing(),
master.getAddress());
mMasters.add(master);
// Each master should generate a new port for binding
mMasterConf.set(Constants.MASTER_PORT, "0");
}
// Create the UFS directory after LocalTachyonMaster construction, because LocalTachyonMaster
// sets UNDERFS_ADDRESS.
mkdir(mMasterConf.get(Constants.UNDERFS_ADDRESS));
LOG.info("all {} masters started.", mNumOfMasters);
LOG.info("waiting for a leader.");
boolean hasLeader = false;
while (!hasLeader) {
for (int i = 0; i < mMasters.size(); i++) {
if (mMasters.get(i).isServing()) {
LOG.info(
"master NO.{} is selected as leader. address: {}", i, mMasters.get(i).getAddress());
hasLeader = true;
break;
}
}
}
// Use first master port
mMasterConf.set(Constants.MASTER_PORT, getMasterPort() + "");
CommonUtils.sleepMs(10);
mWorkerConf = WorkerContext.getConf();
mWorkerConf.merge(mMasterConf);
mWorkerConf.set(Constants.WORKER_DATA_FOLDER, mWorkerDataFolder);
mWorkerConf.set(Constants.WORKER_MEMORY_SIZE, mWorkerCapacityBytes + "");
mWorkerConf.set(Constants.WORKER_BLOCK_HEARTBEAT_INTERVAL_MS, 15 + "");
// Setup conf for worker
mWorkerConf.set(Constants.WORKER_TIERED_STORE_LEVELS, Integer.toString(numLevels));
mWorkerConf.set(String.format(Constants.WORKER_TIERED_STORE_LEVEL_ALIAS_FORMAT, 0), "MEM");
mWorkerConf.set(
String.format(Constants.WORKER_TIERED_STORE_LEVEL_DIRS_PATH_FORMAT, 0),
mTachyonHome + "/ramdisk");
mWorkerConf.set(
String.format(Constants.WORKER_TIERED_STORE_LEVEL_DIRS_QUOTA_FORMAT, 0),
mWorkerCapacityBytes + "");
// Since tests are always running on a single host keep the resolution timeout low as otherwise
// people running with strange network configurations will see very slow tests
mWorkerConf.set(Constants.NETWORK_HOST_RESOLUTION_TIMEOUT_MS, "250");
for (int level = 1; level < numLevels; level++) {
String tierLevelDirPath =
String.format(Constants.WORKER_TIERED_STORE_LEVEL_DIRS_PATH_FORMAT, level);
String[] dirPaths = mWorkerConf.get(tierLevelDirPath).split(",");
String newPath = "";
for (String dirPath : dirPaths) {
newPath += mTachyonHome + dirPath + ",";
}
mWorkerConf.set(
String.format(Constants.WORKER_TIERED_STORE_LEVEL_DIRS_PATH_FORMAT, level),
newPath.substring(0, newPath.length() - 1));
}
mWorkerConf.set(Constants.WORKER_BIND_HOST, mHostname);
mWorkerConf.set(Constants.WORKER_PORT, "0");
mWorkerConf.set(Constants.WORKER_DATA_BIND_HOST, mHostname);
mWorkerConf.set(Constants.WORKER_DATA_PORT, "0");
mWorkerConf.set(Constants.WORKER_WEB_BIND_HOST, mHostname);
mWorkerConf.set(Constants.WORKER_WEB_PORT, "0");
mWorkerConf.set(Constants.WORKER_WORKER_BLOCK_THREADS_MIN, "1");
mWorkerConf.set(Constants.WORKER_WORKER_BLOCK_THREADS_MAX, "100");
// Perform immediate shutdown of data server. Graceful shutdown is unnecessary and slow
mWorkerConf.set(Constants.WORKER_NETWORK_NETTY_SHUTDOWN_QUIET_PERIOD, Integer.toString(0));
mWorkerConf.set(Constants.WORKER_NETWORK_NETTY_SHUTDOWN_TIMEOUT, Integer.toString(0));
mWorker = new BlockWorker();
if (LineageUtils.isLineageEnabled(WorkerContext.getConf())) {
// Setup the lineage worker
LOG.info("Started lineage worker at worker with ID {}", WorkerIdRegistry.getWorkerId());
mLineageWorker = new LineageWorker(mWorker.getBlockDataManager());
}
Runnable runWorker =
new Runnable() {
@Override
public void run() {
try {
// Start the lineage worker
if (LineageUtils.isLineageEnabled(WorkerContext.getConf())) {
mLineageWorker.start();
}
mWorker.process();
} catch (Exception e) {
throw new RuntimeException(e + " \n Start Master Error \n" + e.getMessage(), e);
}
}
};
mWorkerThread = new Thread(runWorker);
mWorkerThread.start();
// The client context should reflect the updates to the conf.
ClientContext.reset(mWorkerConf);
}