[
https://issues.apache.org/jira/browse/OAK-3002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14589684#comment-14589684
]
Chetan Mehrotra commented on OAK-3002:
--------------------------------------
bq. the journal contains a tree of nodes that have changed. However, it does
not yet indicate if a non-leaf node has changed or not. For a leaf-node it is
clear, that has changed. But for a non-leaf that is atm not yet marked in any
way (maybe we could do that).
Aah was not aware of that. I thought we are storing list of changed paths, now
I see that its a JSOPIt would be better if we do this and thus avoid the
complexity in cache invalidation logic
[~mreutegg] thoughts?
> Optimize docCache and docChildrenCache invalidation by filtering using journal
> ------------------------------------------------------------------------------
>
> Key: OAK-3002
> URL: https://issues.apache.org/jira/browse/OAK-3002
> Project: Jackrabbit Oak
> Issue Type: Sub-task
> Components: core, mongomk
> Reporter: Stefan Egli
> Assignee: Stefan Egli
> Labels: scalability
> Fix For: 1.3.1, 1.2.3
>
> Attachments:
> OAK-3002-improved-doc-and-docChildren-cache-invaliation.3.patch,
> OAK-3002-improved-doc-cache-invaliation.2.patch
>
>
> This subtask is about spawning out a
> [comment|https://issues.apache.org/jira/browse/OAK-2829?focusedCommentId=14588114&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14588114]
> on OAK-2829 re optimizing docCache invalidation using the newly introduced
> external diff journal:
> {quote}
> Attached OAK-2829-improved-doc-cache-invaliation.patch which is a suggestion
> on how to avoid invalidating the entire document cache when doing a
> {{backgroundRead}} but instead making use of the new journal: ie only
> invalidate from the document cache what has actually changed.
> I'd like to get an opinion ([~mreutegg], [~chetanm]?) on this first, I have a
> load test pending locally which found invalidation of the document cache to
> be the slowest part thus wanted to optimize this first.
> Open still/next:
> * also invalidate only necessary parts from the docChildrenCache
> * junits for all of these
> {quote}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
