On Wed, Sep 10, 2014 at 4:24 PM, McNamara, Bradley <Bradley.McNamara at seattle.gov> wrote: > Hello, > > This is my first real issue since running Ceph for several months. Here's the situation: > > I've been running an Emperor cluster for several months. All was good. I decided to upgrade since I'm running Ubuntu 13.10 and 0.72.2. I decided to first upgrade Ceph to 0.80.4, which was the last version in the apt repository for 13.10. I upgrade the MON's, then the OSD servers to 0.80.4; all went as expected with no issues. The last thing I did was upgrade the MDS using the same process, but now the MDS won't start. I've tried to manually start the MDS with debugging on, and I have attached the file. It complains that it's looking for "mds.0.20 need osdmap epoch 3602, have 3601". > > Anyway, I'd don't really use CephFS or RGW, so I don't need the MDS, but I'd like to have it. Can someone tell me how to fix it, or delete it, so I can start over when I do need it? Right now my cluster is HEALTH_WARN because of it. Uh, the log is from an MDS running Emperor. That one looks like it's complaining because the mds data formats got updated for Firefly. ;) You'll need to run debugging from a Firefly mds to try and get something useful. -Greg Software Engineer #42 @ http://inktank.com | http://ceph.com
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