BryanCutler commented on issue #24734: [SPARK-27870][SQL][PySpark] Flush each batch for pandas UDF (for improving pandas UDFs pipeline) URL: https://github.com/apache/spark/pull/24734#issuecomment-497569777 >BTW, is the buffer size 65536 bytes? So .. the issue is that we should wait until 65536 bytes is full? Why don't we simply add a config to control the buffer size then? Yes, I think this is the right approach if there is too much latency between endpoints. There is a config for the Scala side `spark.buffer.size` already
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