public File [ ] getFsImageNameCheckpoint ( long txid ) { ArrayList < File > list = new ArrayList < File > ( ) ; for ( Iterator < StorageDirectory > it = dirIterator ( NameNodeDirType . IMAGE ) ; it . hasNext ( ) ; ) { list . add ( getStorageFile ( it . next ( ) , NameNodeFile . IMAGE_NEW , txid ) ) ; } return list . toArray ( new File [ list . size ( ) ] ) ; }
Return the name of the image file that is uploaded by periodic checkpointing