Does the prefetch cache use an LRU?

[salazarm]

I'm prefetching a lot of dynamic routes in my app as an optimization but I think it's causing a memory leak because the cache grows infinitely? Is there a way to set a max size? Or maybe this isn't true? Anyone know? I'm using router.prefetch(url)

[icyJoseph]

In what Next.js version are you on? And how did you arrive to the memory leak conclusion?

[salazarm]

I think it could be something else in my app causing a memory leak. I don't know for sure that prefetching its causing one. Though I'm wondering if the prefetch cache is bounded in anyway?

[icyJoseph]

What Next.js version though? I am not sure about pre 16 - likely not? I found a code comment that hints at that. Does the memory leak ease if you reduce the amount of prefetch calls?

[salazarm]

I'm on 15.3.2

[salazarm]

I figured out my memory leak issue though, it was another cause I believe (though I also added:

experimental: {
    staleTimes: {
      dynamic: 180, // 3 minutes
      static: 180, // 3 minutes
    },
  },

at the same time so not 100% sure that the prefetching wasn't contributing)