Den fre 10 sep. 2021 kl 14:39 skrev George Shuklin <george.shuklin@xxxxxxxxx>: > > On 10/09/2021 14:49, George Shuklin wrote: > > Hello. > > > > I wonder if there is a way to see how many replicas are available for > > each object (or, at least, PG-level statistics). Basically, if I have > > damaged cluster, I want to see the scale of damage, and I want to see > > the most degraded objects (which has 1 copy, then objects with 2 > > copies, etc). > > > > Are there a way? pg list is not very informative, as it does not show > > how badly 'unreplicated' data are. > > > Actually, the problem is more complicated than I expected. Here is the > artificial cluster, where there is a sizable chunk of data are single, > (cluster of thee servers with 2 OSD each, put some data, shutdown server > #1, put some more data, kill server #3, start server#1, it's guaranteed > that server #2 holds a single copy). This is snapshot of the ceph pg > dump for it as soon as #2 booted, and I can't find a proof that some > data are in a single copy: > https://gist.github.com/amarao/fbc8ef3538f66a9f2c264f8555f5c29a > In this case, where you have both made PGs undersized, and also degraded by letting one OSD pick up some changes and then remove it and get another one back in (I didn't see where #2 stopped in your example), I guess you will have to take a deep dive into ceph pg <name of pg> query to see ALL the info about it. By the time you are stacking multiple error scenarios on top of eachother, I don't think there is a simple "show me a short understandable list of what it almost near working" -- May the most significant bit of your life be positive. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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