[Bugs] [Bug 1140862] New: A new xattr is needed to store ec parameters

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1140862

            Bug ID: 1140862
           Summary: A new xattr is needed to store ec parameters
           Product: GlusterFS
           Version: 3.6.0
         Component: disperse
          Assignee: gluster-bugs at redhat.com
          Reporter: xhernandez at datalab.es
                CC: bugs at gluster.org, gluster-bugs at redhat.com



+++ This bug was initially created as a clone of Bug #1140861 +++

Description of problem:

Current ec implementation uses a special matrix with a fixed stripe size. This
works fine, but most probably this will need to be changed or tweaked in the
future to add features or performance. Since any change to this data involves
changes in the encoding/decoding, it's necessary to store this information in
each file to be able to recover it using the right configuration.

To do so, it's necessary to create a new xattr that will store this information
and will allow backward compatibility.

Version-Release number of selected component (if applicable): master


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

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