# EPF5 Week-19: Implementing Teku Settable Histogram ## Week overview - [X] Worked on Teku histogram PR - [X] Explored histogram buckets display in Grafana - [X] Discussed metrics specs on PeerDAS Breakout Room ## Teku This week I focused on implementing [Settable Histogram](https://github.com/Nashatyrev/teku/pull/160) in Teku. Significant effort was required to integrate it with the existing metrics setup due to Teku's specific Prometheus endpoint configuration using the Besu library. Overriding the standard Prometheus library was not possible due to Besu's private collector. Collaboration with Dmitry led to finding a solution. Next steps involve refining the implementation and obtaining final review. ## Grafana While working on Teku, I dived deeper into displaying histogram buckets in Grafana. A potential solution could be adding a heatmap alongside the main histogram display. Further investigation of this approach is planned. ## PeerDAS Breakout Room The current open PeerDAS metrics PR was discussed with core developers during the PeerDAS Breakout Room session. It was agreed to merge the PR by the next call unless there were objections to any specific metrics. The gossipsub and libp2p PR will be discussed at the upcoming meeting. ## Weekly EPF Activity - [EPF5 Standup]() - [PeerDAS Breakout Room #10](https://youtu.be/o2hpnJBjSyw) [Github issue #1179](https://github.com/ethereum/pm/issues/1179) - [EPF5 Office Hours](https://github.com/eth-protocol-fellows/cohort-five/issues/503) AMA with EF Robust Incentive Group - Thomas and Julian [Robust Incentives Group (RIG) — Homepage](https://efdn.notion.site/Robust-Incentives-Group-RIG-Homepage-802339956f2745a5964d8461c5ccef02) [RIG Open Problems (ROPs)](https://efdn.notion.site/RIG-Open-Problems-ROPs-c11382c213f949a4b89927ef4e962adf) - [ACDC #144](https://youtube.com/live/p3FRr5umt4U) [Github issue #1178](https://github.com/ethereum/pm/issues/1178) Devnet-3, devnet-4, SingleAttestation, engine_getBlobsV1, rebase of PeerDAS onto Electra, EIP-7783, EIP-7782 updates ## TODO - [ ] Complete Teku histogram implementation - [ ] Proceed with Lighthouse reviews and make necessary adjustments - [ ] Initiate discussion about metrics specs PR and facilitate its merging ## Links [Robust Incentives Group (RIG) — Homepage](https://efdn.notion.site/Robust-Incentives-Group-RIG-Homepage-802339956f2745a5964d8461c5ccef02) [RIG Open Problems (ROPs)](https://efdn.notion.site/RIG-Open-Problems-ROPs-c11382c213f949a4b89927ef4e962adf) [Possible futures of the Ethereum protocol](https://vitalik.eth.limo/general/2024/10/14/futures1.html)