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Posted to oak-issues@jackrabbit.apache.org by "Marcel Reutegger (JIRA)" <ji...@apache.org> on 2014/02/26 16:45:24 UTC
[jira] [Assigned] (OAK-1416) Adding many siblings does not scale as
expected in the number of added nodes
[ https://issues.apache.org/jira/browse/OAK-1416?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Marcel Reutegger reassigned OAK-1416:
-------------------------------------
Assignee: Marcel Reutegger
> Adding many siblings does not scale as expected in the number of added nodes
> ----------------------------------------------------------------------------
>
> Key: OAK-1416
> URL: https://issues.apache.org/jira/browse/OAK-1416
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: mongomk
> Reporter: Michael Dürig
> Assignee: Marcel Reutegger
> Fix For: 0.18
>
>
> {{org.apache.jackrabbit.oak.jcr.LargeOperationIT#manySiblings}} does not scale linearly. Neither on a segment nor on a document node store:
> {code}
> seg quotients: 0.4181951174217804, 0.4163634468727202, 0.8406068389090829, 1.0735629207664423, 1.290574274619522
> doc quotients: 1.5713552072927073, 0.6562667320967186, 0.6101785222342979, 2.0164792911151244, 1.6989089236000476
> {code}
> In both cases adding sibling becomes more expensive when there are already many siblings. Although the behaviour is more expressed on a document node store. See also OAK-1413 on how to read these numbers.
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