Hi Joao, This question looks like it should have an easy answer, but I've never tried to do that. Does anyone has previous experience dealing with this ? Cheers Quoting : http://tracker.ceph.com/issues/9485#note-19 After trying to edit the crushmap in order to separate groups of OSDs according to their disk technology, my mons failed to restart after a needed restart. Using the ceph-monstore-tool I managed to extract the crushmap from the store.db and I can see that a ruleset refers to a non-existing root object. I cannot say for sure that I set up my crushmap, through the edit, properly, and it seems that the problem of the "lost" reference is related to that. But I cannot find a way to reset the offline store.db with a fixed crushmap. I am even checking the source code and I see that the MonitorDBStore has only get methods. The put methors are part of the Transaction struct of the class and I too little experience with the source code to understand whether this structure can be used to initiate a transaction to update an offline store.db. Having a way of fixing an offline store.db that is plagued due to a bad crushmap would be nice :D -- Loïc Dachary, Artisan Logiciel Libre
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