[HDFS-15527] Error On adding new Namespace

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Not A Bug
• Affects Version/s: 3.0.0
• Component/s: federation, ha, nn
• Assignee: Unassigned
• Reporter: Thangamani Murugasamy
• Created: 12/Aug/20 11:26
• Updated: 19/Mar/21 21:32
• Resolved: 19/Mar/21 21:32

Description

We have one namespace, trying to add other one, always getting below error message. 

 

The new name nodes never be part of existing name space, also don't see any "nn" directories before adding name space.

 

2020-08-12 04:59:53,947 WARN org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Encountered exception loading fsimage
java.io.IOException: NameNode is not formatted.
at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:237)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1084)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:709)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:665)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:727)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:950)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:929)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1653)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1720)
2020-08-12 04:59:53,955 DEBUG org.apache.hadoop.hdfs.server.namenode.FSEditLog: Closing log when already closed

==============

 

 

2020-08-12 04:59:53,976 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:237)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1084)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:709)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:665)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:727)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:950)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:929)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1653)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1720)
2020-08-12 04:59:53,978 DEBUG org.apache.hadoop.util.ExitUtil: Exiting with status 1: java.io.IOException: NameNode is not formatted.
1: java.io.IOException: NameNode is not formatted.
at org.apache.hadoop.util.ExitUtil.terminate(ExitUtil.java:265)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1726)
Caused by: java.io.IOException: NameNode is not formatted.
at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:237)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1084)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:709)
at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:665)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:727)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:950)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:929)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1653)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1720)
2020-08-12 04:59:53,979 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1: java.io.IOException: NameNode is not formatted.