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Increase session length at Rialto #1215

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svyatonik opened this issue Nov 16, 2021 · 2 comments
Closed

Increase session length at Rialto #1215

svyatonik opened this issue Nov 16, 2021 · 2 comments
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A-chores Something that has to be done, as part of regular maintenance Good First Issue Good for newcomers Help Wanted An external contribution is desired.
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When Thou Have Sp...

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@svyatonik
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Right now session/epoch length on Rialto is 4 blocks (around 24 seconds) - see this and this. This is one of possible reasons of why we have seen 2 test deployments stalls recently. The reason of last one was that block production has stalled (last generated block was 67 for the almost whole day) && iirc if BABE authorities fail to produce blocks for 2 sessions, it stalls. The reason is maybe our overloaded test deployments machine && short session time.

The suggestion is to increase session time (e.g. x2) && see if it helps. We shall not make session on Rialto too long, because (iirc) it affects parachain onboarding time.
@svyatonik svyatonik added Good First Issue Good for newcomers Help Wanted An external contribution is desired. A-chores Something that has to be done, as part of regular maintenance labels Nov 16, 2021
@svyatonik svyatonik added this to the When Thou Have Spare Hour milestone Nov 16, 2021
@svyatonik
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Just got this locally and the error message is:

rialto-alice:  �[2m2021-11-17 13:24:36.001�[0m �[33m WARN�[0m tokio-runtime-worker babe: Unable to fetch epoch data at block 0x4601cd64aa1d49d696a13c48a342a16e72c42f77af61be88639fc59d352664fe: InvalidAuthoritiesSet    
rialto-alice:  �[2m2021-11-17 13:24:36.049�[0m �[33m WARN�[0m tokio-runtime-worker sync: � Verification failed for block 0xb8a5a2abcc9dff2c72e5d8caf18ceaff7283055cc2a7e34c94463ae9f09ae25c received from peer: 12D3KooWSEpHJj29HEzgPFcRYVc5X3sEuP3KgiUoqJNCet51NiMX, "Could not fetch epoch at 0x4601cd64aa1d49d696a13c48a342a16e72c42f77af61be88639fc59d352664fe"    
...
rialto-alice:  �[2m2021-11-17 13:24:36.057�[0m �[33m WARN�[0m tokio-runtime-worker sync: � Verification failed for block 0xb8a5a2abcc9dff2c72e5d8caf18ceaff7283055cc2a7e34c94463ae9f09ae25c received from peer: 12D3KooWP2mdXenJaZ4ngNrddwMaFBvnJcPuCkixmbCwybxzKvGK, "Could not fetch epoch at 0x4601cd64aa1d49d696a13c48a342a16e72c42f77af61be88639fc59d352664fe"

@svyatonik
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Not reproduced during last 3 months => closing

svyatonik pushed a commit that referenced this issue Jul 17, 2023
@dependabot
Bump nix from 0.24.0 to 0.24.1 (#1215)
d72a356 
Bumps [nix](https://github.com/nix-rust/nix) from 0.24.0 to 0.24.1.
- [Release notes](https://github.com/nix-rust/nix/releases)
- [Changelog](https://github.com/nix-rust/nix/blob/master/CHANGELOG.md)
- [Commits](nix-rust/nix@v0.24.0...v0.24.1)

---
updated-dependencies:
- dependency-name: nix
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
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