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https://issues.apache.org/jira/browse/CASSANDRA-10587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15015284#comment-15015284
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Tiago Batista commented on CASSANDRA-10587:
-------------------------------------------

Sorry, I was interrupted right after sending you the email, before composing a 
proper set of instructions on how I reproduced this, I may be doing something 
very wrong here!

{code}
[root@node-1 cass-test]# tar -axf /var/lib/cassandra/data/OpsCenter?.tar.gz
[root@node-1 cass-test]# cd OpsCenter/events-14c5005086d111e5ad19ebe38da2fed2/
[root@node-1 events-14c5005086d111e5ad19ebe38da2fed2]# sstablemetadata 
la-1-big-Data.db 
WARN  06:05:11 Only 51918 MB free across all data volumes. Consider adding more 
capacity to your cluster or removing obsolete snapshots
Exception in thread "main" java.lang.NullPointerException
        at 
org.apache.cassandra.io.sstable.Descriptor.fromFilename(Descriptor.java:271)
        at 
org.apache.cassandra.io.sstable.Descriptor.fromFilename(Descriptor.java:172)
        at 
org.apache.cassandra.tools.SSTableMetadataViewer.main(SSTableMetadataViewer.java:52)
{code}


> sstablemetadata NPE on cassandra 2.2
> ------------------------------------
>
>                 Key: CASSANDRA-10587
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10587
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>            Reporter: Tiago Batista
>            Assignee: Ariel Weisberg
>             Fix For: 2.2.x, 3.x
>
>
> I have recently upgraded my cassandra cluster to 2.2, currently running 
> 2.2.3. After running the first repair, cassandra renames the sstables to the 
> new naming schema that does not contain the keyspace name.
>  This causes sstablemetadata to fail with the following stack trace:
> {noformat}
> Exception in thread "main" java.lang.NullPointerException
>         at 
> org.apache.cassandra.io.sstable.Descriptor.fromFilename(Descriptor.java:275)
>         at 
> org.apache.cassandra.io.sstable.Descriptor.fromFilename(Descriptor.java:172)
>         at 
> org.apache.cassandra.tools.SSTableMetadataViewer.main(SSTableMetadataViewer.java:52)
> {noformat}



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