d’oh, I kind of speculated that this pattern might be possible to apply to WAL above without having read far enough down to see it was implemented in WAL2. Though I mentioned RCU the hot/cold partitions were something I was also thinking of.
I wonder if this could be further extended to better support concurrent writes. Depending on the implementation, with wal2 readers may be reading from both hot and cold files without blocking. So this may potentially be extendable to read from two hot files, or two hot files and two cold files.
I wonder if this could be further extended to better support concurrent writes. Depending on the implementation, with wal2 readers may be reading from both hot and cold files without blocking. So this may potentially be extendable to read from two hot files, or two hot files and two cold files.