Method _open_lmdb

tensorpack/dataflow/format.py:124–129

(self)

                    self.keys = keys

    def _open_lmdb(self):
        self._lmdb = lmdb.open(self._lmdb_path,
                               subdir=os.path.isdir(self._lmdb_path),
                               readonly=True, lock=False, readahead=True,
                               map_size=1099511627776 * 2, max_readers=100)
        self._txn = self._lmdb.begin()

    def _close_lmdb(self):
        self._lmdb.close()