echauchot commented on issue #11055: [BEAM-9436] Improve GBK in spark structured streaming runner URL: https://github.com/apache/beam/pull/11055#issuecomment-604900507 > I think the point of the comment (or at least on my case on OOM) was not about this PR solving it or not but more about removing the comment `// Materialize groupByKeyOnly values, potential OOM because of creation of new iterable` which i think gave a valid orientation and now can be missed for someone reading the code, so probably letting the comment back is enough (of course in an updated version if it makes sense). I agree, I'll update the comment
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