So recently I completed side gig from random freelancing site where I had to shadow troubleshoot performance problems over teams call with random Indian guy on his client's AWS account. Long story short you can autoscale new instances all you want but it's not gonna help if your FIFO sqs has only one message group ID. This architecture is running an online game, which is basically limited to processing ONE event at the same time for ALL players xD
What's even better, basing on naming convention I realized it's a company that I interviewed for like 4 months ago and they told me "we need someone with more experience". Well good luck, thanks for quick cash

First post yay!
I'm a "tech" lead for my team. The "tech" stands for technically, I can go on a whole different rant there but that's not why we're here today.
So we have a new PM on our side and a new PM on the client side. I've been working on this project longer than any of the devs and PMs have.
One of the tasks that my team does is validate and ingest data. It's pretty straightforward and it's fully automated. It takes minutes, and at most an hour, to complete this task. We get these tasks from users randomly and they don't have any schedule to it. It's FIFO basis and we just add it to our current sprint if we have bandwidth or add it to the next one if we don't. Not a big deal, no users have complained about it before, it's just business as usual. And we have a tracker of when we received it, how big it was and when it's been ingested. Super simple.
So now comes in the new client PM. He's been asking us to come up with timelines for these ingestions. My project's new PM is bending over to him and saying okay we'll come up with it, no problem. Well, there is a problem. We don't know that far in advance for when these tasks are coming in. Even if we did, now we're supposed to create timelines for a 10 min task? It literally is uploading a file and our system handles everything and I've explained that to my pm but he still is like well that's what they want. It takes less effort to do the ingestion than to make these timelines. It just means project managers bothering devs about timelines.
Idk how to deal with this. Thoughts? Any similar experiences?