Fix number of examples for iterable datasets in multiprocessing #18856
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oneraghavan
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Sep 26, 2022
…ingface#18856) * Fix number of examples for iterable datasets in multiprocessing * Add stronger check
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What does this PR do?
As pointed out in #18608,
IterableDatasetShard.num_examplesis not always update in multiprocessing environments. This PR addresses that by ignoring the value in those cases. It also adds a stronger check of trusting the observed number of examples when for the reason the length is 0.Fixes #18608