March 2019
Beginner to intermediate
778 pages
34h 20m
English
Content preview from Building Google Cloud Platform Solutions
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Processing failures
As part of the at-least-once guarantee for Cloud Pub/Sub message delivery, when a service fails to acknowledge a message for any reason, that message will be redelivered continuously for up to 7 days. As a result, it is possible for subscriptions to fill up with messages that cannot be processed.
Consider a scenario where a subscriber expects a message body to contain a known serialized entity, and fails to acknowledge messages that do not conform to expectations. Over time, the ratio of messages that cannot be processed will continue to increase, potentially dwarfing any valid messages. In such a scenario, the subscriber will receive (and fail to acknowledge) an ever-growing backlog of bad messages in order to process ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.