question Re: I am having a 12 datanode are running, but out of 1 is dead but in ambari alters is not showing which one is dead, in Archives of Support Questions (Read Only)

I am having a 12 datanode are running, but out of 1 is dead but in ambari alters is not showing which one is dead,

ansarifah — Thu, 27 Oct 2016 02:25:17 GMT

How to find which datanode is dead via terminal or ambari

Shelton — Thu, 27 Oct 2016 02:34:03 GMT

I think the below command should sort you out if you are not in a kerberized environment

#su - hdfs
$ hdfs dfsadmin -report -dead

$ hdfs dfsadmin -report -alive

The dead and alive nodes will appear

ansarifah — Thu, 27 Oct 2016 02:40:18 GMT

Thanks but still not display which one is down, any other command

ansarifah — Thu, 27 Oct 2016 02:45:07 GMT

It appear four to six node and at end

one datanode is dead (1)

details of node

---------------

Shelton — Thu, 27 Oct 2016 02:49:49 GMT

#su - hdfs
$ hdfs dfsadmin -report -dead

ansarifah — Thu, 27 Oct 2016 03:07:14 GMT

Thanks a lot , find it and and solve it ?