Github user sitalkedia commented on the issue:
https://github.com/apache/spark/pull/15408
>> BufferedInputStream supports mark/reset, while we are not doing so here
- does deserialization and other codepaths depend on this ? (If not for
functionality, then for performance ?)
@mridulm - I looked around the code and neither any compressed input stream
or deserialziation stream is using mark and reset. I have put a TODO here to
support in future.
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