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I am getting stale alerts every hr, if the last point of contact between Data nodes and Namenode is more than 30 s we get these alerts.

I am not able to find the root cause of this slowness, I have 32 cores system, but when this alert is generated in htop hdfs usage is more but not all cores are 100% utilized.

DataNode Health Summary

DataNode Health: [Live=5, Stale=1, Dead=0] Please suggest changes required to resolve this.

Kaustubh Ghode
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1 Answers1

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We cannot tell you why you are getting a stale datanode. It could be a networking issue. It could be a node that has hardware starting to fail. It could just be that you need to tweak the configuration parameters.

cabad
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