On 02/17/2016 09:42 AM, jayakrishnan mm wrote:
Dear Xavier,
I am trying to understand the disperse translator and its usage.
From
https://lists.gnu.org/archive/html/gluster-devel/2014-01/txttzloLYIJOh.txt
, I see there are four components namely gfsys,dfc,ida and heal
which needs to be compiled with GlusterFS main source code.
I am confused this with xlator/cluster/ec. What is the
relationship between this and the disperse volume components
mentioned earlier ?
Is xlator/cluster/ec is erasure coding (ec) translator
implementation in glusterFS ? If yes, which algorithm it implements ?
( I know disperse volume implements IDA)
Pls. help
hi Jayakrishnan,
While Xavi replies to this mail, here are my inputs. I am not
very familiar with the old code because I didn't get a chance to look at
them deeply. But I do know about dfc. All the code of disperse volume is
in 'xlators/cluster/ec'. At the moment EC is using synchronization
similar to afr for now, so dfc is not in upstream yet. Heal in ec is
also changed similar to afr and is done automatically by glustershd, so
the functionality of 'heal' I think is implemented in
ec-heal.c(Healing), ec-heald.c (automatic healing part). Did I get that
right Xavi?
Pranith
Best Regards
JK
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