source-mixpanel-native: runTransactions: readMessage: Killed

[jonwihl]

No description provided.

[Alex-Bair]

Reopening because the previous PR did not fix the OOM issues. I have a clearer idea of what the problem is now though. Previously, I assumed that all user profiles returned in cohort_members would have the same/similar shape and size, and a single page_size would work across each cohort when retrieving its members. However, this is not true. Some user profiles are huge and getting a lot of these larger profiles in a single page is OOM-ing the connector.

The only workable path forward I can think of right now is to make cohort_members actually incremental, somehow. I think a possible cursor field is $last_seen, but that needs verified.

Edit: Per this Mixpanel doc, it does sound like $last_seen could be a good cursor field since Mixpanel refers to it as an "Updated at" field.