how to repair Unhealthy Nodemanager ??

[#1]

how to repair Unhealthy Nodemanager ??

i restart Yarn service but i have 4 nodemanagers started and 1 unhealthy , when i try to ckeck

/var/log/hadoop/yarn i dont find any log , so how to repair Unhealthy Nodemanager

[#2]

Thank you @Ian Roberts but i found the solution

[#3 · Accepted solution]

i found the solution go to

yarn.nodemanager.disk-health-checker.min-healthy-disks

and change the value to 0 and restart yarn and it gonna work.

[#4]

That is not a good solution as you are saying yarn does not need any healthy disks to function. You essentially disable the health check with this. There is an underlying problem with the disks and that is the reason for it being marked unhealthy.

[#5]

Hi all,

I have a similar issue, all 3 node managers in my cluster are marked as bad with local dirs bad alerts and I can assure I have plenty of space on the YARN disk. (just 35% of the disk is used). Does anyone know of this alert other than YARN reaching its disk threshold value??

Thanks,
Priyanshu