[HDFS-6103] FSImage file system image version check throw a (slightly) wrong parameter.

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 2.4.0, 3.0.0-alpha1
• Component/s: namenode
• Labels: newbie
• Assignee: Unassigned
• Reporter: Jun Aoki
• Created: 14/Mar/14 02:18
• Updated: 12/May/16 18:17
• Resolved: 11/Apr/14 01:14

Description

Trivial error message issue:
When upgrading hdfs, say from 2.0.5 to 2.2.0, users will need to start namenode with "upgrade" option.
e.g.

sudo service namenode upgrade

That said, the actual error while without the option said "-upgrade" (with a hyphen)

2014-03-13 23:38:15,488 FATAL org.apache.hadoop.hdfs.server.namenode.NameNode: Exception in namenode join
java.io.IOException:
File system image contains an old layout version -40.
An upgrade to version -47 is required.
Please restart NameNode with -upgrade option.
        at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:221)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:787)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:568)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:443)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:491)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:684)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:669)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1254)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1320)
2014-03-13 23:38:15,492 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1
2014-03-13 23:38:15,493 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at nn1/192.168.2.202
************************************************************/
~

I'm referring to 2.0.5 above,
https://github.com/apache/hadoop-common/blob/branch-2.0.5/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L225

I haven't tried the trunk but it seems to return "UPGRADE" (all upper case)
which again anther slightly wrong error description.

https://github.com/apache/hadoop-common/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L232

Issue Links

• duplicates: HDFS-6215 Wrong error message for upgrade