4 ms·
Does your version have "full" fault tolerance or only the "partial" fault tolerance noted on the s4 site.
by pants 16y ago
Does your version have "full" fault tolerance or only the "partial" fault tolerance noted on the s4 site.
- jamii 16y agoI guess it depends how you define 'full' fault tolerance. In the case of a machine failure it would lose a couple of seconds worth of transactions. In a data-processing scenario thats not an issue - just re-run the data that hasn't been processed yet. In an exchange the recovery delay is a bit more painful and there is always the potential to permanently lose transactions. Unfortunately there doesn't seem to be a way around that - we must have consistency and performance so machine failure is always going to cause some interruption to availability