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https://issues.apache.org/jira/browse/SLING-5701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carsten Ziegeler closed SLING-5701.
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> ChunkCleanUpTask runs into an endless loop with empty chunks
> ------------------------------------------------------------
>
> Key: SLING-5701
> URL: https://issues.apache.org/jira/browse/SLING-5701
> Project: Sling
> Issue Type: Bug
> Components: Servlets
> Affects Versions: Servlets Post 2.3.10
> Reporter: Stefan Egli
> Assignee: Carsten Ziegeler
> Fix For: Servlets Post 2.3.12
>
> Attachments: SLING-5701.patch
>
>
> Normally chunks created by the SlingFileUploadHandler are formatted the
> following way:
> {code}
> ./chunk_0_19999
> ./chunk_20000_39999
> ./chunk_40000_45123
> {code}
> However consider a chunk which is formatted as follows:
> {code}
> ./chunk_45124_45123
> {code}
> this will cause
> [SlingFileUploadHandler.getLastChunk|https://github.com/apache/sling/blob/ded7f8d657ff54711d6e9bd7d6f76cca67c89df6/bundles/servlets/post/src/main/java/org/apache/sling/servlets/post/impl/helper/SlingFileUploadHandler.java#L487]
> to enter an endless loop as it repeatedly sets the {{startPattern}} to
> "{{./chunk_45124_45123}}" in the above case. Generally speaking, when you
> have a chunk named '{{chunk_n_n-1}}' {{getLastChunk}} will do an endless loop.
> You can also think of other scenarios where {{getLastChunk}} does an endless
> loop - basically, whenever the {{indexBounds[1]}} is lower than
> {{indexBounds[0]}} and hits an existing chunk name.
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