Josh Wills created CRUNCH-248:
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Summary: SingleUseIterable exceptions mask CrunchRuntimeExceptions
thrown in the reducer
Key: CRUNCH-248
URL: https://issues.apache.org/jira/browse/CRUNCH-248
Project: Crunch
Issue Type: Bug
Components: Core
Reporter: Josh Wills
Assignee: Josh Wills
Fix For: 0.8.0
Attachments: CRUNCH-248.patch
If a DoFn on the reducer throws a CrunchRuntimeException, the record you were
processing when the exception was thrown. Since the record is usually some
instance of Pair<K, Iterable<V>> and the Iterable is single-use, attempting to
write the record to the log causes an exception to be thrown when we try to
render the data in the Iterable by calling its iterator() method for the second
time.
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