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https://issues.apache.org/jira/browse/OAK-3066?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vikas Saurabh updated OAK-3066:
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Attachment: OAK-3066.wip.patch
Attaching a wip [patch|^OAK-3066.wip.patch]. Added prev cache inside
{{NodeDocumentCache}} as it seemed that prev documents are very specific to
NodeDocuments. Building the cache, fetching stats etc are done via
DocumentStore implementation/wrappers.
Since node cache is already safe guarded via locks, we don't require any more
locks - while putting doc into cache, I check if it's a split doc... if so,
then put it into prev doc cache as well.
While getting, we poll prev cache first and then fallback to node cache. While
getting via loader, the fetched doc is put into prev doc cache if it's a split
doc.
[~mreutegg], can you please have a look? It's just wip for now but it wraps the
idea as I think makes sense.
> Persistent cache for previous documents
> ---------------------------------------
>
> Key: OAK-3066
> URL: https://issues.apache.org/jira/browse/OAK-3066
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core, mongomk
> Reporter: Marcel Reutegger
> Assignee: Vikas Saurabh
> Labels: performance
> Fix For: 1.4
>
> Attachments: OAK-3066.wip.patch
>
>
> Previous (aka split) documents contain old revisions and are immutable
> documents. Those documents should go into the persistent cache to reduce
> calls to the underlying DocumentStore.
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