Support Questions
Find answers, ask questions, and share your expertise
Alert: Welcome to the Unified Cloudera Community. Former HCC members be sure to read and learn how to activate your account here.

No space left on device on datanode


No space left on device on datanode


hi i noticed there is error message" /u01/dfs/dn/current/BP-773447714- (No space left on device)" on my datanodes, while there is enough disk space on the machine:


/dev/mapper/vg_root-lv_root  1.8T 34G 1.7T 2% /
tmpfs 63G 0 63G 0%

/dev/mapper/vg_root-lv_u01   20T 12T 7.9T 59% /u01
/dev/sda1 190M 39M 142M 22% /boot


and i checked hdfs as well, there are more than 30TB remaining.


could anyone point out what i was missing?