Memory leaks

[kilokeith]

I don't have anything other than anecdotal evidence to support this right now, but at high volume lru-cache leaks memory. It's not noticeable on most projects, but on my high volume sites I find that the servers are bleeding memory and require restarts every few hours. This is consistent with any caching modules that uses lru-cache as the underlying mechanism (mongoose-cache, async-cache, etc).

I'm still looking into this and trying to do memory profiling to determine what the bug is. I assume it has something to do with storing complex objects. But I just wanted to give a heads up in case anyone else plans on using this at large scale.

[isaacs]

When you have data or any way to reproduce, please share.

There are many high-volume sites using lru-cache at Joyent that don't appear to leak memory.

[isaacs]

If you can reproduce it, the easiest way I know to track down the source of a memory leak is to run it on SmartOS, get a core dump with gcore, and then use ::findjsobjects in MDB to find out what is taking up the space.