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https://issues.apache.org/jira/browse/HDFS-15606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17203897#comment-17203897
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Marton Elek commented on HDFS-15606:
------------------------------------
Based on the stack trace it's an HDFS issue, not an Ozone issue. Moved to the
HDFS project.
> Version Upgrade Issue
> ---------------------
>
> Key: HDFS-15606
> URL: https://issues.apache.org/jira/browse/HDFS-15606
> Project: Hadoop HDFS
> Issue Type: Test
> Reporter: BIG DATA
> Priority: Minor
>
> {{020-09-28 02:11:28,114 INFO org.apache.hadoop.util.GSet:
> 0.029999999329447746% max memory 966.7 MB = 297.0 KB}}
> {{2020-09-28 02:11:28,115 INFO org.apache.hadoop.util.GSet: capacity = 2^15 =
> 32768 entries}}
> {{2020-09-28 02:11:28,184 INFO org.apache.hadoop.hdfs.server.common.Storage:
> Lock on /opt/hadoop/dfs/name/in_use.lock acquired by nodename 4221@Node01}}
> {{2020-09-28 02:11:28,190 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:235)}}
> {{ at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:978)}}
> {{ at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:685)}}
> {{ at
> org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:585)}}
> {{ at
> org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:645)}}
> {{ at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:819)}}
> {{ at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:803)}}
> {{ at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1500)}}
> {{ at
> org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1566)hdfs
> namenode -importCheckpoint}}
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