goleveldb dependency appears to no longer be maintained

[alyandon]

@bogdanovich

I noticed you merged my old PR so thought I'd bring this to your attention.

It looks like goleveldb may no longer be under active maintenance: syndtr/goleveldb#400. I found goleveldb infinite table "bloat" issues with my particular usage of siberite (very rapid key turnover - I doubt keys ever made it out of the memstore) that made me have to look for other queue solutions. Unfortunately, despite my best efforts I was never able to fully track down the cause of the bloat in goleveldb - my only suspicion was old keys were not being tombstoned correctly and removed during compaction cycles.

In the issue I linked above, a suggested alternative that appears to be under active development is https://github.com/lotusdblabs/lotusdb. I have no idea how much of a "drop in" replacement it would be but maybe worth considering if you are actively planning on continuing to work on siberite.

[bogdanovich]

Thanks for bringing this up. Have you tried to use siberite with the latest goleveldb version (instead of the vendored one)?
I'm not currently planning to actively work on siberite.

[alyandon]

I did try and keep up with goleveldb releases to see if any resolved the issue but none of them did. However, it has probably been at least 2 years since I last tried and I've long since moved to a different team so not working on queue related things internally anymore.