Hacker News new | ask | show | jobs
by anfroid555 3647 days ago
erlang:open_port(spawn, ...) 3-5 times faster

mnesia_ext: plugin of external storage solutions to mnesia
1 comments
varg 3647 days ago
Ah nice! ..wonder if mnesia_ext is bundled with leveldb support?
link
X4lldux 3647 days ago
I'd rather have Bitcask or RocksDB - something that has better crash recovery capabilities. LevelDB was marked as being prone to data corruption. DETS has similar problems when not closed properly.
link
biokoda 3647 days ago
> LMDB was marked as being prone to data corruption

Don't know where you got your information from, but LMDB is verified as the safest storage engine:

https://www.usenix.org/conference/osdi14/technical-sessions/...

link
X4lldux 3647 days ago
Sorry, I was thing about LevelDB. ANd yes, you are right about LMDB!
link
rdtsc 3647 days ago
DETS is supposed to repair itself on startup. I think most crash-only systems work that way (on startup, start reading from end and find last consistent bit and chop off the rest). But there could obviously been a bug there.
link
X4lldux 3647 days ago
I have a very modest experience with it, but when a crash happened it was game-over for it. Maybe I was doing something wrong.
link
jlouis 3647 days ago
No. The actual ext is something you have to provide yourself.
link