CPU spikes due to Oplog updates without subscriptions

We now upgraded to 2.16 and can confirm, that the OPLOG improvements work beautifully for us!

Please see the following CPU graphs:

The CPU spikes of our import worker (purple) due to working hard on doing imports (writing millions of documents into 3 mongodb collections) does not affect the CPU of the meteor app (yellow) anymore!

Really happy with how this turned out! :v:


Amazing to see this :clap::clap::clap:

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