I have about 55 installs on an account at WPEngine and this afternoon, jetpack.full.sync.cron was overloading the server and causing all of the installs to throw 502/504 errors. All of the installs use JetPack so we had to deactivate it across all of them in order to get the server load back down.
I noticed at https://wordpress.org/support/topic/jetpack-sync-killing-the-db/ this appears to be a known issue but I don’t see anything about it in any of the subsequent changelogs. Do you know if this has been addressed and if not, is there a temp fix I can put in place so as to be able to reactivate JetPack across my installs?
Some of the higher traffic installs include:
Jetpack has been deactivated across all of those.
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