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From "Thomas Mueller (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-7947) Lazy loading of Lucene index files startup
Date Thu, 24 Jan 2019 07:32:00 GMT

    [ https://issues.apache.org/jira/browse/OAK-7947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16750816#comment-16750816

Thomas Mueller commented on OAK-7947:

New patch OAK-7947_v5.patch passes the tests... But unfortunately it doesn't seem to lazily
load the indexes I would expect. Need to further analyze.

> Lazy loading of Lucene index files startup
> ------------------------------------------
>                 Key: OAK-7947
>                 URL: https://issues.apache.org/jira/browse/OAK-7947
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: lucene, query
>            Reporter: Thomas Mueller
>            Assignee: Thomas Mueller
>            Priority: Major
>         Attachments: OAK-7947.patch, OAK-7947_v2.patch, OAK-7947_v3.patch, OAK-7947_v4.patch,
OAK-7947_v5.patch, lucene-index-open-access.zip
> Right now, all Lucene index binaries are loaded on startup (I think when the first query
is run, to do cost calculation). This is a performance problem if the index files are large,
and need to be downloaded from the data store.

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