Erlang : Mnesia : Is it safe to remove files with prefix _fs?

Question

I have a couple of files in mnesia directory, like

fs_my@node_14585_1263_545605_962084.273
fs_my@node_14702_1263_545842_879762.273 
fs_my@node_14585_1263_545605_962084.290 
... 

Can I remove them (because it is big files) without risk to lose data?

Why does these files apear? What are these files for? Is it safe to remove them?

Answer 1

See http://www.erlang.org/doc/man/file_sorter.html

So without looking into the files, I would say that 1.+4. Yes, you can remove them, but first give it a try, as Zed said. 2.+3. They are temporary files used for sorting and should have been removed. """[...] Temporary files are deleted unless some uncaught EXIT signal occurs."""