March 2019
Intermediate to advanced
356 pages
10h 7m
English
Content preview from Mastering Ceph - Second Edition
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What is BlueStore?
BlueStore is a Ceph object store that's primarily designed to address the limitations of filestore, which, prior to the Luminous release, was the default object store. Initially, a new object store named NewStore was being developed to replace filestore. NewStore was a combination of RocksDB, a key–value store that stored metadata and a standard Portable Operating System Interface (POSIX) filesystem for the actual objects. However, it quickly became apparent that using a POSIX filesystem introduced high overheads and restrictions, which was one of the key reasons for trying to move away from using filestore in the first place.
Hence, BlueStore was born. Using raw block devices in combination with RocksDB, a number of problems ...
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