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How does shared memory get handled across nodes? I’d imagine there’s quite a bit of in memory state for things like sequences. For that specific example you cou
by koolba 4y ago
How does shared memory get handled across nodes? I’d imagine there’s quite a bit of in memory state for things like sequences. For that specific example you could preallocate chunks of them as there’s no guarantee of them being contiguous, but I’m guessing there’s more complicated examples.
- kelvich 4y agoOur compute node is basically a usual postgres where we intercept WAL write and page read streams. In other words we don't do any compute sharding since we want to preserve vanilla postgres compatibility and any sharded solution will be riddled with a lot of issues like you've mentioned.
- deleted 4y ago[deleted]