Github user tdas commented on the pull request:
https://github.com/apache/spark/pull/3389#issuecomment-63926244
I found potential bugs and corner cases regarding the `ignoreThreshold` .
If there is a batch with no files, then the `minModTime` will be stored as -1,
and the `ignoreThreshold` will get calculated as -1, thus allowing all files to
be accepted. Fixing and testing this. Will update when I am convinced that this
is resolved.
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