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https://issues.apache.org/jira/browse/OAK-9434?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amrit Verma resolved OAK-9434.
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Resolution: Fixed
> MongoDB indexing: implement parallel chunk download
> ---------------------------------------------------
>
> Key: OAK-9434
> URL: https://issues.apache.org/jira/browse/OAK-9434
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: indexing
> Affects Versions: 1.38.0
> Reporter: Amrit Verma
> Assignee: Amrit Verma
> Priority: Major
>
> In case of large indexes, indexing takes a long time. In case of MongoDB
> Document store, Currently it is a two step process - download the data from
> mongodb then create index based on that data.
> If something fails during this process, indexing needs to be restarted from
> beginning of the download step. We should make the indexing process resumable
> from the point it stopped.
> Since data download from mongodb seems to be more time taking than indexing
> itself, we first focus on download part.
> This Jira issue is for implementing resumable/parallel download.
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