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https://issues.apache.org/jira/browse/CASSANDRA-1471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stu Hood updated CASSANDRA-1471:
--------------------------------

    Attachment: 0005-Clean-up-callers-who-were-abusing-the-Filename-metho.patch

> how about if we continue to return descriptor, and let the caller ask for 
> Descriptor.componentFor(Component.Type) if necessary?
'componentFromFilename' is for callers who need to know the component identity 
of a file: since the set of components isn't necessarily fixed anymore, they 
may not know to ask for a particular component, without being handed it.

'fromFilename' still returns the sstable identity of a file, but you're right: 
there were a few (indirect) callers to clean up. Both SSTableDeletingReference 
and CFS.snapshot still had bugs: fixed in 0005. The remaining callers for 
fromFilename look justified (enough) to leave in (for now).

> Improve SSTable discovery and allow for more components
> -------------------------------------------------------
>
>                 Key: CASSANDRA-1471
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1471
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Stu Hood
>            Assignee: Stu Hood
>             Fix For: 0.7.0
>
>         Attachments: 
> 0001-Prepare-to-have-a-fifth-type-of-SSTable-file-by-addi.patch, 
> 0002-Incorporate-Components-into-ColumnFamilyStore-loadin.patch, 
> 0003-Remove-extraneous-SSTR-constructor-and-factory-funct.patch, 
> 0004-Incorporate-Components-into-SSTable-load-process.patch, 
> 0005-Clean-up-callers-who-were-abusing-the-Filename-metho.patch
>
>
> A new 'Statistics.db' component was added recently, and it is likely that 
> more components will follow. Due to our parsing code using a regex to detect 
> 'orphan' files (rather than a checked type) a bug slipped through that 
> prevents the new component from being detected as an orphan.
> To continue to be able to scale the components of SSTables, we should 
> formalize 'Components'.

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