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Posted to oak-issues@jackrabbit.apache.org by "Davide Giannella (JIRA)" <ji...@apache.org> on 2019/04/09 10:37:12 UTC

[jira] [Updated] (OAK-6515) Decouple indexing and upload to datastore

     [ https://issues.apache.org/jira/browse/OAK-6515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Davide Giannella updated OAK-6515:
----------------------------------
    Fix Version/s: 1.14.0

> Decouple indexing and upload to datastore
> -----------------------------------------
>
>                 Key: OAK-6515
>                 URL: https://issues.apache.org/jira/browse/OAK-6515
>             Project: Jackrabbit Oak
>          Issue Type: New Feature
>          Components: indexing, lucene, query
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>            Priority: Minor
>             Fix For: 1.12.0, 1.14.0
>
>
> Currently the default async index delay is 5 seconds. Using a larger delay (e.g. 15 seconds) reduces index related growth, however diffing is delayed 15 seconds, which can reduce indexing performance. 
> One option (which might require bigger changes) is to index every 5 seconds, and store the index every 5 seconds in the local directory, but only write to the datastore / nodestore every 3rd time (that is, every 15 seconds).
> So that other cluster nodes will only see the index update every 15 seconds. The diffing is done every 5 seconds, and the local index could be used every 5 or every 15 seconds.



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