March 2019
Intermediate to advanced
356 pages
10h 7m
English
Content preview from Mastering Ceph - Second Edition
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Snaptrimming
When you remove a snapshot, Ceph has to delete all the objects that have been created due to the copy-on-write nature of the snapshot process. From Ceph 10.2.8 onward, there is an improved OSD setting called osd_snap_trim_sleep, which makes Ceph wait for the specified number of settings between the trimming of each snapshot object. This ensures that the backing object store does not become overloaded.
Although this setting was available in previous jewel releases, its behavior was not the same and should not be used.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.