On Oct 28, 2014, at 5:20 PM, Lincoln Bryant wrote:
> Hi Greg, Loic,
> 
> I think we have seen this as well (sent a mail to the list a week or so ago 
> about incomplete pgs). I ended up giving up on the data and doing a 
> force_create_pgs after doing a find on my OSDs and deleting the relevant pg 
> dirs. If there are any logs etc you'd like to see for debugging / 
> post-mortem, I'd be happy to send them along.

Hello, all. I got some advice from the IRC channel (thanks bloodice!) that I 
temporarily reduce the min_size of my cluster (size = 2) from 2 down to 1. That 
immediately caused all of my incomplete PGs to start recovering and everything 
seemed to come back OK. I was serving out and RBD from here and xfs_repair 
reported no problems. So... happy ending?

What started this all was that I was altering my CRUSH map causing significant 
rebalancing on my cluster which had size = 2. During this process I lost an OSD 
(osd.10) and eventually ended up with incomplete PGs. Knowing that I only lost 
1 osd I was pretty sure that I hadn't lost any data I just couldn't get the PGs 
to recover without changing the min_size.
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