应用实际数据与其使用空间不符
hdfs dfs -du -h /landsat_flink_ha | grep G
42.9 K 89.3 G /landsat_flink_ha/application_1658448699056_990584
走进去
hdfs dfs -du -h /landsat_flink_ha/application_1658448699056_990584
0 384 M /landsat_flink_ha/application_1658448699056_990584/completedCheckpointfbf82284656d
hdfs dfs -ls /landsat_flink_ha/application_1658448699056_990584/completedCheckpointfbf82284656d
-rw-r--r-- 3 blade supergroup 0 2022-11-18 09:42 /landsat_flink_ha/application_1658448699056_990584/completedCheckpointfbf82284656d
检查区块
hdfs fsck /landsat_flink_ha/application_1658448699056_990584/completedCheckpointfbf82284656d -files -blocks -racks
Connecting to namenode via http://id-cdh-master-192:50070/fsck?ugi=hdfs&files=1&blocks=1&racks=1&path=%2Flandsat_flink_ha%2Fapplication_1658448699056_990584%2FcompletedCheckpointfbf82284656d
FSCK started by hdfs (auth:SIMPLE) from /172.22.8.89 for path /landsat_flink_ha/application_1658448699056_990584/completedCheckpointfbf82284656d at Tue Apr 18 06:54:21 UTC 2023
Status: HEALTHY
Total size: 0 B
Total dirs: 0
Total files: 0
Total symlinks: 0 (Files currently being written: 1)
Total blocks (validated): 0 (Total open file blocks (not validated): 1)
Minimally replicated blocks: 0
Over-replicated blocks: 0
Under-replicated blocks: 0
Mis-replicated blocks: 0
Default replication factor: 3
Average block replication: 0.0
Corrupt blocks: 0
Missing replicas: 0
Number of data-nodes: 170
Number of racks: 1
FSCK ended at Tue Apr 18 06:54:21 UTC 2023 in 8 milliseconds
The filesystem under path '/landsat_flink_ha/application_1658448699056_990584/completedCheckpointfbf82284656d' is HEALTHY
当我手动删除一些文件时，空间被释放。
***
hdfs dfs -rm -f /landsat_flink_ha/application_1658448699056_990584/completedCheckpointfbf82284656d
hdfs dfs -du -h /landsat_flink_ha
28.6 K 68.3 G /landsat_flink_ha/application_1658448699056_990584