Sailesh Patel created HDFS-14448:
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Summary: Provide an appropriate Message when Secondary Namenode is
not bootstrap initialized
Key: HDFS-14448
URL: https://issues.apache.org/jira/browse/HDFS-14448
Project: Hadoop HDFS
Issue Type: Improvement
Components: hdfs
Affects Versions: 2.6.0
Reporter: Sailesh Patel
After HDFS is running for some time and then it is enabled for HDFS-HA, if the
secondary bootstrap fails ( say because active NN was down), and then it is
attempted to be started, the message in secondary NN says "NameNode is not
formatted."
e.g.
2019-04-16 19:43:27,951 ERROR org.apache.hadoop.hdfs.server.namenode.NameNode:
Failed to start namenode. java.io.IOException: NameNode is not formatted. at
org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:232)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1144)
Can this message be improved to say:
"Secondary NameNode is not initialized. Please Bootstrap Secondary Namenode"
or
"NameNode is not formatted/Secondary Namenode not Bootstrapped(Initialized)"
This is to avoid customers mistakenly formatting namenode and there by losing
data.
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