checkpoint warnign

[doddys]

Dear Manoj,

how to fix this issue? is this normal?

Checkpoint Status Suppress...
The filesystem checkpoint is 3 hour(s), 4 minute(s) old. This is 308.31% of the configured checkpoint period of 1 hour(s). Warning threshold: 200.00%. 6,318 transactions have occurred since the last filesystem checkpoint. This is 0.63% of the configured checkpoint transaction target of 1,000,000.

[doddys]

I found this error in the log file of SNN

2018-05-15 04:46:32,705 ERROR org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode: Exception in doCheckpoint
java.io.IOException: Inconsistent checkpoint fields.
LV = -60 namespaceID = 185358040 cTime = 0 ; clusterId = cluster20 ; blockpoolId = BP-1234263361-172.30.1.187-1526298662632.
Expecting respectively: -60; 1426520126; 0; cluster14; BP-1463659061-172.30.1.187-1526286687045.
	at org.apache.hadoop.hdfs.server.namenode.CheckpointSignature.validateStorageInfo(CheckpointSignature.java:134)
	at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doCheckpoint(SecondaryNameNode.java:540)
	at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doWork(SecondaryNameNode.java:360)
	at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode$1.run(SecondaryNameNode.java:325)
	at org.apache.hadoop.security.SecurityUtil.doAsLoginUserOrFatal(SecurityUtil.java:444)
	at org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.run(SecondaryNameNode.java:321)
	at java.lang.Thread.run(Thread.java:745)

I fixed it by deleting /dfs/snn.

Is that a correct solution?

[doddys]

For HA solution need to execute the following:

hdfs dfsadmin -safemode enter  
hdfs dfsadmin -saveNamespace  
hdfs dfsadmin -safemode leave