On Fri, Oct 23, 2020 at 9:02 AM David C <dcsysengineer@xxxxxxxxx> wrote: > > Success! > > I remembered I had a server I'd taken out of the cluster to > investigate some issues, that had some good quality 800GB Intel DC > SSDs, dedicated an entire drive to swap, tuned up min_free_kbytes, > added an MDS to that server and let it run. Took 3 - 4 hours but > eventually came back online. It used the 128GB of RAM and about 250GB > of the swap. > > Dan, thanks so much for steering me down this path, I would have more > than likely started hacking away at the journal otherwise! > > Frank, thanks for pointing me towards that other thread, I used your > min_free_kbytes tip > > I now need to consider updating - I wonder if the risk averse CephFS > operator would go for the latest Nautilus or latest Octopus, it used > to be that the newer CephFS code meant the most stable but don't know > if that's still the case. You need to first upgrade to Nautilus in any case. n+2 releases is the max delta between upgrades. -- Patrick Donnelly, Ph.D. He / Him / His Principal Software Engineer Red Hat Sunnyvale, CA GPG: 19F28A586F808C2402351B93C3301A3E258DD79D
