[jira] [Commented] (OAK-56) File system abstraction

["Stefan Guggisberg (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OAK-56?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13250672#comment-13250672 ] 

Stefan Guggisberg commented on OAK-56:
--------------------------------------

so far i didn't have the need for a file system abstraction in the microkernel.
until such need arises i'd rather stick with the standard java file i/o.
i don't see the point in using an abstraction just for the sake of it. 
                
> File system abstraction
> -----------------------
>
>                 Key: OAK-56
>                 URL: https://issues.apache.org/jira/browse/OAK-56
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: core, mk
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>            Priority: Minor
>
> A file system abstraction allows to add new features (cross cutting concerns) in a modular way, for example:
> - detection and special behavior of out-of-disk space situation
> - profiling and statistics over JMX
> - re-try on file system problems
> - encryption
> - file system monitoring
> - replication / real-time backup on the file system level (for clustering)
> - caching (improved performance for CRX)
> - allows to easily switch to faster file system APIs (FileChannel, memory mapped files)
> - debugging (for example, logging all file system operations)
> - allows to implement s3 / hadoop / mongodb / ... file systems - not only by us but from 3th party, possibly the end user
> - zip file system (for example to support read-only, compressed repositories)
> - testing: simulating out of disk space and out of memory (ensure the repository doesn't corrupt in this case)
> - testing: simulate very large files (using an in-memory file system)
> - splitting very large files in 2 gb blocks (FAT and other file systems that don't support large files)
> - data compression (if needed)

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira