Black listed node in CDH 5.4.2 Hadoop cluster

[#1]

Hello,

One node is Black listed in  CDH 5.4.2 12 node Cloudera  Hadoop cluster .

Reason for Black list : 27 failures on the tracker

Please help to find out the resolution.

Thanks

Krishna

[#2]

This article from Stack Overflow may be helpful.

https://stackoverflow.com/questions/17355270/recovering-black-listed-tasktrackers-in-mapreduce-job

In general a blacklisted node can be brought back online by cleaning up the errors. You will need to look at the task tracker logs to see what was causing the failures. Let me know what happens.

Ron