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Ceph: Designing and Implementing Scalable Storage Systems
book

Ceph: Designing and Implementing Scalable Storage Systems

by Michael Hackett, Vikhyat Umrao, Karan Singh, Nick Fisk
January 2019
Intermediate to advanced content levelIntermediate to advanced
606 pages
15h 1m
English
Packt Publishing
Content preview from Ceph: Designing and Implementing Scalable Storage Systems

OSD logs

Next, let's check out entries from osd.8's log. Since Ceph OSDs are more numerous than MONs and process a larger rate of transactions we find that they grow much more quickly. Be sure to allocate ample space for them. As above, this cluster is running Ceph's Jewel release.

2017-09-18 00:19:08.268212 7fe07b990700  1 leveldb: Compacting 4@0 + 5@1 files
2017-09-18 00:19:08.327958 7fe07b990700  1 leveldb: Generated table   #14159: 55666 keys, 2129686 bytes
2017-09-18 00:19:08.382062 7fe07b990700  1 leveldb: Generated table     #14160: 52973 keys, 2129584 bytes
2017-09-18 00:19:08.434451 7fe07b990700  1 leveldb: Generated table   #14161: 54404 keys, 2129467 bytes
2017-09-18 00:19:08.488200 7fe07b990700  1 leveldb: Generated table    #14162: 54929 keys, ...
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Publisher Resources

ISBN: 9781788295413