Support Questions

Find answers, ask questions, and share your expertise
Announcements
Celebrating as our community reaches 100,000 members! Thank you!

Is this a bug of ambari ? this occur when delete a host.

avatar
Explorer

18383-1212.png

1 ACCEPTED SOLUTION

avatar
Master Mentor
hide-solution

This problem has been solved!

Want to get a detailed solution you have to login/registered on the community

Register/Login
6 REPLIES 6

avatar
Explorer

avatar
Master Mentor
hide-solution

This problem has been solved!

Want to get a detailed solution you have to login/registered on the community

Register/Login

avatar
Explorer

the datanode is stopped before delete the host. but when I see the DataNodes Live through jmx, the datanode is still live. How to solve it ?

avatar
Master Mentor

@jack jack

If the NameNode is returning incorrect data then From Ambari side we can not do much.

Please check the NameNode UI to see if you are finding the problematic DataNode listed there?

http://$NAMENODE_HOST:50070/dfshealth.html#tab-datanode

.

Please check if you see the DataNode name listed in the above URL?

Try restarting the NameNode and then see if it fixes the stale datanode list.

.

avatar
Explorer

the NameNode returning is still 8, can we change the dashboard get data from HDFS Summary.Because when I delete host the HDFS summary area display correctly

avatar
Explorer

20469-9.png

this label is sensitive and correct