# Remote build cache node keeps evicting cache entries

**URL:** <https://discuss.gradle.org/t/remote-build-cache-node-keeps-evicting-cache-entries/44696>\
**Category:** Help/Discuss\
**Created:** [January 19, 2023, 5:33am UTC](https://discuss.gradle.org/t/remote-build-cache-node-keeps-evicting-cache-entries/44696 "2023-01-19T05:33:49Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![percyding-awx](https://avatars.discourse-cdn.com/v4/letter/p/a9a28c/32.png) [@percyding-awx](https://discuss.gradle.org/u/percyding-awx)\
**Post date:** [January 19, 2023, 5:33am UTC](https://discuss.gradle.org/t/remote-build-cache-node-keeps-evicting-cache-entries/44696/1 "2023-01-19T05:33:49Z")

</div>

Hi team,

We have recently set up gradle remote build cache node using [Docker](https://hub.docker.com/r/gradle/build-cache-node/) but having some issues with pushing the cache to the remote node

The config we have in setting.gradle is:

```gradle
buildCache {
    remote(HttpBuildCache) {
        allowInsecureProtocol = true
        url = 'http://build-cache-node:5071/cache/'
        push = true
        enabled = true
        credentials {
            username = "xxxx"
            password = "xxxxx"
        }
    }
}

```

We are able to access the web UI and can see that only little storage is being utilised and cache entries are kept being evicted. Message displayed on the web UI `The build cache is empty - 2 B disk space used, 9.7 GiB reserved for temp storage, 9.7 GiB free on disk.`

Our cache node config:

```gradle
version: 5
cache:
  accessControl:
    users:
      xxxx:
        level: readwrite
        password: xx       
        note: ""
    anonymousLevel: none
  freeSpaceBufferSize: 3036
  maxEntryAgeInHours: null
  maxArtifactSize: 5012
  targetSize:
    type: maxAvailable
uiAccess:
  type: generated
registration: null

```

logs from the cache node:

```gradle
2023-01-19 05:03:30,487 WARN c.g.e.r.f.c.a.j {eid=k3yc5j3fhatdg, service=MaintainSizeTask} Could not find evictable entry, aborting with current size of 2 
2023-01-19 05:03:30,487 INFO c.g.e.r.f.c.a.k {eid=jq53fw4o56nso, service=MonitorFileStoreStorageStateTask} Using target cache size of 6.7 GiB (requested free space buffer: 2.9 GiB, free space: Optional[9.7 GiB]) 
2023-01-19 05:03:35,487 WARN c.g.e.r.f.c.a.j {eid=av2s22e3bglms, service=MaintainSizeTask} Could not find evictable entry, aborting with current size of 2 
2023-01-19 05:03:40,487 WARN c.g.e.r.f.c.a.j {eid=trpjt6xbiicyo, service=MaintainSizeTask} Could not find evictable entry, aborting with current size of 2 
2023-01-19 05:03:45,487 WARN c.g.e.r.f.c.a.j {eid=froxxuzhysb36, service=MaintainSizeTask} Could not find evictable entry, aborting with current size of 2 
2023-01-19 05:03:47,110 INFO c.g.e.r.f.c.a {eid=hqmoiv6rumspm} Configured storage settings: target cache size = maximum available, overridden volume size = 10 GiB, free space buffer size = 2.9 GiB, incoming buffer entry size = 4.8 GiB 
2023-01-19 05:03:47,110 INFO c.g.e.r.f.c.a {eid=hqmoiv6rumspm} Configuration disabled age based eviction 
2023-01-19 05:23:10,638 WARN c.g.e.r.f.c.a.j {eid=yb5mizf2rfsso, service=MaintainSizeTask} Could not find evictable entry, aborting with current size of 2 
2023-01-19 05:23:15,638 WARN c.g.e.r.f.c.a.j {eid=inas2sasgei34, service=MaintainSizeTask} Could not find evictable entry, aborting with current size of 2 
2023-01-19 05:23:19,792 INFO c.g.e.r.f.a.a {eid=ceobowncoq5ui, service=MaintainLruTableTask} Took 0 ms to write the index file (39 bytes) to disk 
2023-01-19 05:23:20,639 WARN c.g.e.r.f.c.a.j {eid=t4627b433i3uw, service=MaintainSizeTask} Store is over target size but is empty 
2023-01-19 05:23:25,639 WARN c.g.e.r.f.c.a.j {eid=6imdxlvab4xr4, service=MaintainSizeTask} Could not find evictable entry, aborting with current size of 39 
2023-01-19 05:25:30,655 INFO c.g.e.r.f.c.a.j {eid=3rl52a7zuor2y, service=MaintainSizeTask} Effective target size changed from 7261835303 to 7261828706 during eviction 

```

Any suggestions?

---

<div class="post-metadata">

**Author:** ![Vampire](https://sea1.discourse-cdn.com/gradle/user_avatar/discuss.gradle.org/vampire/32/9082_2.png) [@Vampire](https://discuss.gradle.org/u/Vampire)\
**Post date:** [January 19, 2023, 10:42am UTC](https://discuss.gradle.org/t/remote-build-cache-node-keeps-evicting-cache-entries/44696/2 "2023-01-19T10:42:04Z")

</div>

I have no real experience with the remote build cache node.  
But from the config and logs I would guess these facts:

- you configured free space buffer size of 3,036 MiB = 2.96 GiB
- you configured max artifact size of 5,012 MiB = 4.89 GiB
- that an artifact with max size can be received, the incoming buffer size is 4.8 GiB (would have expected 4.9, but maybe a rounding error)
- free space buffer size + incoming buffer size = 7.85 GiB
- target cache size is 6.7 GiB
- 7.85 \> 6.7 =\> nothing can be added to the cache

But that’s really just a wild guess.