January 2019
Intermediate to advanced
606 pages
15h 1m
English
book
Ceph: Designing and Implementing Scalable Storage Systems
by Michael Hackett, Vikhyat Umrao, Karan Singh, Nick Fisk
Content preview from Ceph: Designing and Implementing Scalable Storage Systems
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OSD and FileStore settings
There are quite a few settings that may be tweaked for OSDs; optimal values vary depending on the speeds of your OSD and journal drives, your workload, and the number of CPU cores available. The suggestions here must be researched and tested in the context of your unique deployment:
[osd]filestore_queue_max_bytes = 1048576000filestore_queue_max_ops = 50000
The above settings work well for the authors to enhance the performance of FileStore OSDs deployed on fast SSDs. Your mileage may vary, especially on HDD OSDs:
[osd]osd_op_threads = 16osd_disk_threads = 4
These thread settings are sometimes controversial; some hold that increasing them can benefit performance, others that they increase contention and can lead ...
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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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