RocksJava - Opening database fails on Windows with non-english characters/locale

[DaMatrix]

Expected behavior

DB#open will work properly, regardless of what characters the path name contains and/or the system locale.

Actual behavior

In some cases, it fails with an exception. See PorkStudios/FarPlaneTwo#32 for an example of a case where it failed with a garbled error message when given an entirely ASCII path, as well as a few people who are reporting that it works properly as long as the path is entirely ASCII.

I'm reasonably certain this issue is specific to Windows (as I was unable to reproduce it locally when using path names consisting of totally random UTF-8 characters), but I don't have enough experience with character encodings/locales/whatever to know whether or not these are all different problems caused by the same underlying issue, or two separate things. I can't confirm this, though, because I don't have access to any Windows machines to test it out on.

The errors in the linked issue all occurred on rocksdbjni 6.13.3.

Possibly related to #3408?

[adamretter]

@DaMatrix We have been releasing the Windows builds with UTF-8 support enabled by default for several iterations. Can you try updating to a more recent version of RocksDB please, and then report back?

[DaMatrix]

Yep, sure! Sorry, I hadn't realized just how old 6.13.3 is. I'll let you know as soon as I have more information.

[jay-zhuang]

Closing it now. @DaMatrix please feel free to re-open if it still fails.

[DaMatrix]

Fine by me, none of the people who originally encountered the issue got back to me and nobody else has reported it since I upgraded to a more recent rocksdb version, so I'd assume it's been fixed. Will come back here if anyone else reports it.