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https://issues.apache.org/jira/browse/LUCENE-8961?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16920917#comment-16920917
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Christine Poerschke commented on LUCENE-8961:
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Attached outline work-in-progress patch:
* a new {{-skipCheckIntegrity}} option would allow the tool to proceed past the
initial integrity checks (which would fail e.g. due to footer checksum failure)
* a new {{-idField F}} option would identify the field from which terms are to
be salvaged
* the salvaged terms are currently printed to std.err (and this obviously would
have to be changed somehow)
> CheckIndex: pre-exorcise document id salvage
> --------------------------------------------
>
> Key: LUCENE-8961
> URL: https://issues.apache.org/jira/browse/LUCENE-8961
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: Christine Poerschke
> Priority: Minor
> Attachments: LUCENE-8961.patch
>
>
> The
> [CheckIndex|https://github.com/apache/lucene-solr/blob/releases/lucene-solr/8.2.0/lucene/core/src/java/org/apache/lucene/index/CheckIndex.java]
> tool supports the exorcising of corrupt segments from an index.
> This ticket proposes to add an extra option which could first be used to
> potentially salvage the document ids of the segment(s) about to be exorcised.
> Re-ingestion for those documents could then be arranged so as to repair the
> data damage caused by the exorcising.
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