[
https://issues.apache.org/jira/browse/SOLR-3142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13212752#comment-13212752
]
Hoss Man commented on SOLR-3142:
--------------------------------
FWIW: I'm pretty sure the original assumption here was that in the (relatively
common) usecase of doing a full-import rebuild on a regular basis (ie: nightly)
that it can be handy to have it auto-optimize when you are done. I think the
real problem is that that assumption was never challeneged regarding things
like delta import.
so an argument could be made the the default should still be to optimze=true on
full-import, and optimize=false on delta import ... but i'm not going to make
that argument, i think this it's silly to assume true in either case.
(particularly since a parameterized full import might actually be a rapidly
repeating incremental)
> remove O(n^2) slow slow indexing defaults in DataImportHandler
> --------------------------------------------------------------
>
> Key: SOLR-3142
> URL: https://issues.apache.org/jira/browse/SOLR-3142
> Project: Solr
> Issue Type: Bug
> Reporter: Robert Muir
> Assignee: Robert Muir
> Fix For: 3.6, 4.0
>
> Attachments: SOLR-3142.patch
>
>
> By default, dataimporthandler optimizes the entire index when it commits.
> This is bad for performance, because it means by default its doing a very
> heavy index-wide operation even for an incremental update... essentially
> O(n^2) indexing.
> All that is needed is to set optimize=false by default. If someone wants
> to optimize, they can either set optimize=true or explicitly optimize
> themselves.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
