What is mean like this ?
2019-10-12T07:42:01.556Z INFO piecestore deleted {"Piece ID": "NFBZHR7RZCFHK3JPBADYLH5CUSXC4UTYZY2NUD4DVJTY5ZITSLJQ"}
2019-10-12T07:42:51.089Z INFO piecestore deleted {"Piece ID": "SZTBRWDPSCMATXBYM6VSYLAHOTDBZIOKWC36N3VWNPGBEKREBDMQ"}
2019-10-12T07:43:04.230Z INFO piecestore deleted {"Piece ID": "BCJUH6IA7FMBK6SWXKMSJYKXVRZAYP6FU5XH5HSEQW4LNNNIPL7Q"}
2019-10-12T07:45:52.664Z INFO piecestore deleted {"Piece ID": "AGR3OOWVDJKFBH6ZGQY6YFOLS4PEZWWTKK3RZAR3Q2G55GE6HQWQ"}
2019-10-12T07:47:25.855Z INFO piecestore deleted {"Piece ID": "VHGKLSKW32NJFU5VFTJUUYBUJTZSDWO2YV7WKPUCPW3W7KD2GE4A"}
2019-10-12T07:48:55.795Z ERROR version Failed to do periodic version check: Get https://version.storj.io: dial tcp: lookup version.storj.io on 8.8.8.8:53: read udp 172.17.0.3:33469->8.8.8.8:53: i/o timeout
ming@ming-ubuntu:~$ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=2 ttl=53 time=17.7 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=53 time=19.9 ms
64 bytes from 8.8.8.8: icmp_seq=4 ttl=53 time=20.0 ms
64 bytes from 8.8.8.8: icmp_seq=5 ttl=53 time=20.1 ms