Created 05-31-2016 11:47 AM
HI Team
The 'NameNode Last Checkpoint' alert description says "This service-level alert will trigger if the last time that the NameNode performed a checkpoint was too long ago. It will also trigger if the number of uncommitted transactions is beyond a certain threshold."
I got alert on HA, Saying checkpoint happened too long ago.. How to solve this issue.
HDP : 2.3
Created 05-31-2016 04:49 PM
Restarting the Namenode will fix your issue, Before restarting run below commands
hdfs dfsadmin -safemode enter hdfs dfsadmin -saveNamespace hdfs dfsadmin -safemode leave
Now restart NN, JN.
Created 05-31-2016 12:43 PM
Do i need to run any commands? Manually to update the checkpoint .
Created 05-31-2016 03:16 PM
Can some one help ????
Created 05-31-2016 03:31 PM
Which version of Ambari are you using? it seems your issue is fixed in Ambari 2.4
details are here:
Created 05-31-2016 04:35 PM
Ambari 2.1
Created 05-31-2016 04:36 PM
What is the actual cause. Is it really not checkpointing the edits or its just a ignorable alert
Created 05-31-2016 05:08 PM
I'm not sure if we can ignore this alerts but it seems issue with Ambari Alert script and they fixed it in 2.4. I would recommend to check with HDP while creating support ticket to get confirmation.
Created 05-31-2016 04:49 PM
Restarting the Namenode will fix your issue, Before restarting run below commands
hdfs dfsadmin -safemode enter hdfs dfsadmin -saveNamespace hdfs dfsadmin -safemode leave
Now restart NN, JN.
Created 11-14-2016 09:50 AM
I have performed the above steps but after sometime these alerts are coming again and again. So can you please suggest something to fix this issue permanentaly.
Created 01-07-2017 04:53 AM
@Yukti Agrawal , I have met just the same problem, after performing the above steps ,then after sometime these alerts are coming again and again , did you solve this problem ? I set dfs.namenode.checkpoint.period to 1 hour , but it seems it did not work, since I checked the fsimage file which is not generated automatically per hour , thanks