Chetan Mehrotra created OAK-5511:
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Summary: Reduce lookup for oak:index node under each changed node
Key: OAK-5511
URL: https://issues.apache.org/jira/browse/OAK-5511
Project: Jackrabbit Oak
Issue Type: Improvement
Components: core
Reporter: Chetan Mehrotra
Fix For: 1.8
Currently {{IndexUpdate}} does a lookup for {{oak:index}} node under each
changed node. This is done to pickup index definitions and create IndexEditor
based on those so as to index content under that subtree.
This lookup results in extra remote calls on DocumentNodeStore based setup as
for non leaf nodes NodeStore has to check from remote storage to determine if
{{oak:index}} node is present or not.
This lookup can be avoided by
# Having an {{Editor}} which adds a hidden property {{:oak-index-present}} in
parent node upon addition of {{oak:index}} as a child node
# IndexUpdate would then does a lookup for {{oak:index}} node only if such a
hidden property is found
For upgrade we would have some logic which would make use of Nodetype index to
identify all such nodes and mark them
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