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From "Andras Bokor (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HADOOP-5342) DataNodes do not start up because InconsistentFSStateException on just part of the disks in use
Date Tue, 10 Apr 2018 11:39:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5342?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Andras Bokor resolved HADOOP-5342.
    Resolution: Cannot Reproduce

Last reported occurrence was in 2010 so closing as Cannot Reproduce. Please reopen if you
still experience this.

> DataNodes do not start up because InconsistentFSStateException on just part of the disks
in use
> -----------------------------------------------------------------------------------------------
>                 Key: HADOOP-5342
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5342
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.18.2
>            Reporter: Christian Kunz
>            Assignee: Hairong Kuang
>            Priority: Critical
> After restarting a cluster (including rebooting) the dfs got corrupted because many DataNodes
did not start up, running into the following exception:
> 2009-02-26 22:33:53,774 ERROR org.apache.hadoop.dfs.DataNode: org.apache.hadoop.dfs.InconsistentFSStateException:
Directory xxx  is in an inconsistent state: version file in current directory is missing.
> 	at org.apache.hadoop.dfs.Storage$StorageDirectory.analyzeStorage(Storage.java:326)
> 	at org.apache.hadoop.dfs.DataStorage.recoverTransitionRead(DataStorage.java:105)
> 	at org.apache.hadoop.dfs.DataNode.startDataNode(DataNode.java:306)
> 	at org.apache.hadoop.dfs.DataNode.<init>(DataNode.java:223)
> 	at org.apache.hadoop.dfs.DataNode.makeInstance(DataNode.java:3030)
> 	at org.apache.hadoop.dfs.DataNode.instantiateDataNode(DataNode.java:2985)
> 	at org.apache.hadoop.dfs.DataNode.createDataNode(DataNode.java:2993)
> 	at org.apache.hadoop.dfs.DataNode.main(DataNode.java:3115)
> This happens when using multiple disks with at least one previously marked as read-only,
such that the storage version became out-dated, but after reboot it was mounted read-write,
resulting in the DataNode not starting because of out-dated version.
> This is a big headache. If a DataNode has multiple disks of which at least one has the
correct storage version then out-dated versions should not bring down the DataNode.

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