Csaba Ringhofer created IMPALA-11489:
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Summary: Async IO cannot handle >2GB ORC files
Key: IMPALA-11489
URL: https://issues.apache.org/jira/browse/IMPALA-11489
Project: IMPALA
Issue Type: Bug
Components: Backend
Reporter: Csaba Ringhofer
We assume that the size fits to an int:
https://github.com/apache/impala/blob/308fda110758b0fc58e5b1f477d635aac29aea75/be/src/exec/hdfs-orc-scanner.cc#L253
If the size overflows, then we can incorrectly hit the following error check
(this check is meant to avoid crashing due to corrupt metadata). I see no other
ways this could cause problems, if the catch still succeeds (because the
overflow led to a valid looking length), then the data will be read correctly.
This looks like a trivial fix, but I am concerned about lack of testing of >2GB
files
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