3 ms·
OP mentioned they are using one of the sequential UUID variants so this is not an issue.
by remus 6y ago
OP mentioned they are using one of the sequential UUID variants so this is not an issue.
- dx034 6y agoI believe they still use the MAC address? If the master node changes, the number could suddenly start at a different block, causing massive performance impacts. If they're purely sequential you can as well use a 64 bit int.
- lmm 6y ago> If the master node changes, the number could suddenly start at a different block, causing massive performance impacts. What massive performance impact? You'd have one extra IOP, total, as it loaded the page for the new mac address, and then it would carry on as normal. It would be no different from when a sequential ID crosses a page boundary.