Hello, I have been working on a very basic cluster with 3 nodes and a single OSD per node. I am using Hammer installed on CentOS 7 (ceph-0.94.5-0.el7.x86_64) since it is the LTS version. I kept running into an issue of not getting past the status of undersized+degraded+peered. I finally discovered the problem was that in the default CRUSH map, the weight assigned is 0. I changed the weight and everything came up as it should. I did the same test using the Infernalis release and everything worked as expected as the weight has been changed to a default of 321.
- Is this a bug or by design and if the latter, why? Perhaps I'm missing something? - Has anyone else ran into this? - Am I correct in assuming a weight of 0 won't allow the OSDs to be used or is there some other purpose for this? Hopefully this will help others that may run into this same situation. Thank you.
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