private void initStorageTier() throws AlreadyExistsException, IOException, OutOfSpaceException {
String workerDataFolder =
WorkerContext.getConf().get(Constants.WORKER_DATA_FOLDER, Constants.DEFAULT_DATA_FOLDER);
String tierDirPathConf =
String.format(Constants.WORKER_TIERED_STORAGE_LEVEL_DIRS_PATH_FORMAT, mTierLevel);
String[] dirPaths = WorkerContext.getConf().get(tierDirPathConf, "/mnt/ramdisk").split(",");
// Add the worker data folder path after each storage directory, the final path will be like
// /mnt/ramdisk/tachyonworker
for (int i = 0; i < dirPaths.length; i++) {
dirPaths[i] = PathUtils.concatPath(dirPaths[i].trim(), workerDataFolder);
}
String tierDirCapacityConf =
String.format(Constants.WORKER_TIERED_STORAGE_LEVEL_DIRS_QUOTA_FORMAT, mTierLevel);
String[] dirQuotas = WorkerContext.getConf().get(tierDirCapacityConf, "0").split(",");
mDirs = new ArrayList<StorageDir>(dirPaths.length);
long totalCapacity = 0;
for (int i = 0; i < dirPaths.length; i++) {
int index = i >= dirQuotas.length ? dirQuotas.length - 1 : i;
long capacity = FormatUtils.parseSpaceSize(dirQuotas[index]);
totalCapacity += capacity;
mDirs.add(StorageDir.newStorageDir(this, i, capacity, dirPaths[i]));
}
mCapacityBytes = totalCapacity;
}
public long getBytes(String key) {
if (mProperties.containsKey(key)) {
String rawValue = get(key);
try {
return FormatUtils.parseSpaceSize(rawValue);
} catch (Exception ex) {
throw new RuntimeException("Configuration cannot evaluate key " + key + " as bytes.");
}
}
throw new RuntimeException("Invalid configuration key " + key + ".");
}