TL;DR: We’re updating how auto-generated email from Github will be
threaded on your mailing lists. If you want to keep the old defaults,
details are below.
We’re pleased to let you know that we’re tweaking the way that auto-
generated email from Github will appear on your mailing lists. This
will
I'm not quite sure if this hint is useful. People usually keep a buffer and
flush the buffer when it's full, so that they can control the batch size of
writing, no matter how many inputs they will get. e.g. if spark hints to
you that there will be 1 GB data, are you going to allocate a 1 GB buffer
