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From "Alex Petrov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-13389) Possible NPE on upgrade to 3.0/3.X in case of IO errors
Date Wed, 29 Mar 2017 11:39:41 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-13389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alex Petrov updated CASSANDRA-13389:
------------------------------------
    Status: Ready to Commit  (was: Patch Available)

> Possible NPE on upgrade to 3.0/3.X in case of IO errors 
> --------------------------------------------------------
>
>                 Key: CASSANDRA-13389
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13389
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Lifecycle
>            Reporter: Stefania
>            Assignee: Stefania
>             Fix For: 3.0.x, 3.11.x
>
>
> There is a NPE on upgrade to 3.0/3.X if a data directory contains directories that generate
IO errors, for example if the cassandra process does not have permission to read them.
> Here is the exception:
> {code}
> ERROR [main] 2017-03-06 16:41:30,678  CassandraDaemon.java:710 - Exception encountered
during startup
> java.lang.NullPointerException: null
> 	at org.apache.cassandra.io.util.FileUtils.delete(FileUtils.java:372) ~[cassandra-all-3.0.11.1564.jar:3.0.11.1564]
> 	at org.apache.cassandra.db.SystemKeyspace.migrateDataDirs(SystemKeyspace.java:1359)
~[cassandra-all-3.0.11.1564.jar:3.0.11.1564]
> 	at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:190) ~[cassandra-all-3.0.11.1564.jar:3.0.11.1564]
> {code}
> This is caused by {{File.listFiles()}}, which returns null in case of an IO error.



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