Chetan Mehrotra created OAK-4060:
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Summary: Allow use of pre extrcated text cache for incremental
indexing
Key: OAK-4060
URL: https://issues.apache.org/jira/browse/OAK-4060
Project: Jackrabbit Oak
Issue Type: Improvement
Components: lucene
Reporter: Chetan Mehrotra
Assignee: Chetan Mehrotra
Priority: Minor
Fix For: 1.2.12, 1.3.17
Pre Extraction support was implemented with an assumption that such big
indexing would happen as part of reindex so it was used in reindex phase only.
Reason to avoid using it in incremental indexing (non reindex case) were
# Incremental index would does not have text for newly added files. So checking
with pre extracted cache would not be useful
# PreExtraction logic keeps in memory state (blobs_empty.txt,blobs_error.txt)
which would then unnecessary hog memory.
However in some cases people make use of new incremental migration feature in
upgrade. Which would lead to one big incremental indexing step once next
migration is done and that would then not able to make use of pre extraction
support.
So as a fix we should provide a policy option to ignore the reindex clause per
admin setting
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