/**
* Creates a new key-value store.
*
* @param path URI of the key-value store
* @throws FileAlreadyExistsException if a key-value store URI exists
*/
public synchronized void createStore(TachyonURI path)
throws FileAlreadyExistsException, InvalidPathException {
try {
// Create this dir
mFileSystemMaster.mkdir(
path,
new CreateDirectoryOptions.Builder(MasterContext.getConf()).setRecursive(true).build());
} catch (IOException e) {
// TODO(binfan): Investigate why mFileSystemMaster.mkdir throws IOException
throw new InvalidPathException(
String.format("Failed to createStore: can not create path %s", path), e);
}
final long fileId = mFileSystemMaster.getFileId(path);
Preconditions.checkState(fileId != IdUtils.INVALID_FILE_ID);
createStoreInternal(fileId);
writeJournalEntry(newCreateStoreEntry(fileId));
flushJournal();
}
