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Documentation #3711

closed

crush-map.rst: choose firstn talks about "N", but does not clearly define what N is

Added by Dan Mick over 11 years ago. Updated about 11 years ago.

Status:
Resolved
Priority:
Normal
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Category:
-
Target version:
-
% Done:

0%

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Description

The implication is that 'N' is "the number of buckets of type 'type' available", but Sam believes it must really be "the replication count for this pool", and it seems very odd not to mention
the replication count at all in the documentation of choose firstn, even if that's not
what N is.


Related issues 1 (0 open1 closed)

Related to RADOS - Documentation #3830: crush-map.rst: chooseleaf doesn't include 'firstn|indep', and 'aggregates' isn't perhaps clearClosedSamuel Just01/16/2013

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Actions #1

Updated by John Wilkins over 11 years ago

  • Assignee set to John Wilkins
Actions #2

Updated by John Wilkins over 11 years ago

  • Status changed from New to In Progress
Actions #3

Updated by John Wilkins over 11 years ago

  • Status changed from In Progress to Resolved
Actions #4

Updated by Dan Mick over 11 years ago

Sorry, I think this is still wrong; the descriptions of {num} only apply if firstn is supplied, correct? Otherwise {num} is the number to choose.

Also, chooseleaf is still missing firstn|indep, and I think we should note that "pool-num-replicas" is the same thing we call "pool size" elsewhere.

Actions #5

Updated by Dan Mick over 11 years ago

  • Status changed from Resolved to 4
Actions #6

Updated by John Wilkins about 11 years ago

  • Status changed from 4 to Resolved
Actions #7

Updated by Dan Mick about 11 years ago

  • Status changed from Resolved to 4

Things I mentioned in comment 4 are still present; I'd like to either change them or update here why we're not.

Actions #8

Updated by John Wilkins about 11 years ago

  • Status changed from 4 to Resolved
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