显示HDFS存储信息

hdfs dfs -count -q /spark2-history

hdfs dfs -du -s -h  /spark2-history

hdfs fsck /spark2-history/application_1608084068201_452033_1 -files   -blocks  -racks

Connecting to namenode via http://bigdata002.yyy.com.cn:50070/fsck?ugi=hdfs&files=1&blocks=1&racks=1&path=%2Fspark2-history%2Fapplication_1608084068201_452033_1
FSCK started by hdfs (auth:KERBEROS_SSL) from /172.16.255.20 for path /spark2-history/application_1608084068201_452033_1 at Mon Dec 28 21:47:50 CST 2020
/spark2-history/application_1608084068201_452033_1 1692130 bytes, 1 block(s):  OK
0. BP-86590029-172.16.255.20-1578389062797:blk_2163930329_1090575119 len=1692130 Live_repl=2 [/default-rack/172.16.254.158:1019, /default-rack/172.16.254.138:1019]

Status: HEALTHY
 Total size:    1692130 B
 Total dirs:    0
 Total files:   1
 Total symlinks:        0
 Total blocks (validated):  1 (avg. block size 1692130 B)
 Minimally replicated blocks:   1 (100.0 %)
 Over-replicated blocks:    0 (0.0 %)
 Under-replicated blocks:   0 (0.0 %)
 Mis-replicated blocks:     0 (0.0 %)
 Default replication factor:    2
 Average block replication: 2.0
 Corrupt blocks:        0
 Missing replicas:      0 (0.0 %)
 Number of data-nodes:      100
 Number of racks:       1
FSCK ended at Mon Dec 28 21:47:50 CST 2020 in 14 milliseconds


The filesystem under path '/spark2-history/application_1608084068201_452033_1' is HEALTHY