Comment 54 for bug 1620268

It's not only about retrying db syncs as it also affects services / tests after deployment, like in https://bugs.launchpad.net/mos/+bug/1628942 .

I suggest we re-open this and try to understand the root cause of the split brain. If it's indeed scarce resources, then we should set correct expectations for QA engineers, so that they fix their scripts and do not file a new pile of duplicates.