arunpandianp opened a new issue, #34756:
URL: https://github.com/apache/beam/issues/34756
### What would you like to happen?
Reshuffle.viaRandomKey shuffles by a random key and that creates too many
keys, hurting throughput.
We should change viaRandomKey to shuffle by default with a lower number of
buckets.
Number of buckets could be,
1. a fixed high enough value ~O(10K)
2. a number scaled proportional to the max number of workers
3. an dynamically auto tuned number based on the throughput.
### Issue Priority
Priority: 2 (default / most feature requests should be filed as P2)
### Issue Components
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