[sheepdog] [PATCH v5 0/2] dog: repair objects based on majority vote

Hitoshi Mitake mitake.hitoshi at gmail.com
Tue Nov 12 07:35:51 CET 2013


At Tue, 12 Nov 2013 14:28:17 +0800,
Liu Yuan wrote:
> 
> On Tue, Nov 12, 2013 at 03:22:27PM +0900, Hitoshi Mitake wrote:
> > At Tue, 12 Nov 2013 11:09:03 +0800,
> > Liu Yuan wrote:
> > > 
> > > On Tue, Nov 12, 2013 at 11:45:23AM +0900, Hitoshi Mitake wrote:
> > > > Current object repair strategy of "dog vdi check" doesn't work well if
> > > > objects are corrupted. The first one adds a test for the case, and the
> > > > second patch adds a mechanism for majority voting in the command.
> > > > 
> > > > v5: drop ignore change in v4
> > > 
> > > Applied after fixing new blank line at EOF for 077
> > 
> > Oops, thanks for your fix.
> > 
> > > 
> > > I'd like to see patche(s) that deal with the case when majority object isn't
> > > found. What in my head to deal with this is:
> > > 
> > > - add an option 'depth' for 'dog vdi track' command to get the information of
> > > targeted object placement.
> > > 
> > > With this information, people can do a manual copy\overwrite to missing/inconsistent
> > > objects.
> > > 
> > 
> > I agree. In addition, corrupted or lost inode objects should be
> > repaired by dog vdi repair. I'll implement them later.
> > 
> 
> I guess you mean 'vdi check'.
> 
> Current code indeed fix inode object, no?

Ah, yes, I missed the line in do_vdi_check(). But it seems that we
need a new test for corrupted/lost inode object. I'll write it later.

Thanks,
Hitoshi



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