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Posted to hdfs-issues@hadoop.apache.org by "Jing Zhao (JIRA)" <ji...@apache.org> on 2014/03/24 00:01:44 UTC
[jira] [Assigned] (HDFS-6135) In HDFS upgrade with HA setup,
JournalNode cannot handle layout version bump when rolling back
[ https://issues.apache.org/jira/browse/HDFS-6135?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jing Zhao reassigned HDFS-6135:
-------------------------------
Assignee: Jing Zhao
> In HDFS upgrade with HA setup, JournalNode cannot handle layout version bump when rolling back
> ----------------------------------------------------------------------------------------------
>
> Key: HDFS-6135
> URL: https://issues.apache.org/jira/browse/HDFS-6135
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.4.0
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Priority: Blocker
> Attachments: HDFS-6135.test.txt
>
>
> While doing HDFS upgrade with HA setup, if the layoutversion gets changed in the upgrade, the rollback may trigger the following exception in JournalNodes (suppose the new software bumped the layoutversion from -55 to -56):
> {code}
> 14/03/21 01:01:53 FATAL namenode.NameNode: Exception in namenode join
> org.apache.hadoop.hdfs.qjournal.client.QuorumException: Could not check if roll back possible for one or more JournalNodes. 1 exceptions thrown:
> Unexpected version of storage directory /grid/1/tmp/journal/mycluster. Reported: -56. Expecting = -55.
> at org.apache.hadoop.hdfs.server.common.StorageInfo.setLayoutVersion(StorageInfo.java:203)
> at org.apache.hadoop.hdfs.server.common.StorageInfo.setFieldsFromProperties(StorageInfo.java:156)
> at org.apache.hadoop.hdfs.server.common.StorageInfo.readProperties(StorageInfo.java:135)
> at org.apache.hadoop.hdfs.qjournal.server.JNStorage.analyzeStorage(JNStorage.java:202)
> at org.apache.hadoop.hdfs.qjournal.server.JNStorage.<init>(JNStorage.java:73)
> at org.apache.hadoop.hdfs.qjournal.server.Journal.<init>(Journal.java:142)
> at org.apache.hadoop.hdfs.qjournal.server.JournalNode.getOrCreateJournal(JournalNode.java:87)
> at org.apache.hadoop.hdfs.qjournal.server.JournalNode.canRollBack(JournalNode.java:304)
> at org.apache.hadoop.hdfs.qjournal.server.JournalNodeRpcServer.canRollBack(JournalNodeRpcServer.java:228)
> {code}
> Looks like for rollback JN with old software cannot handle future layoutversion brought by new software.
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