fix(ci): remove large-kona-sequencer rust-e2e variant#19553
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The large-kona-sequencer config (1 kona sequencer + 4 reth validators + 4 geth validators) runs the same tests as simple-kona-sequencer with no additional test logic — the tests just iterate over more nodes. The only difference is scale, but with 20+ processes on xlarge (8 vCPU, 16GB), kona-node engine API calls intermittently time out under resource pressure, causing TestSyncSafe to flake. The simple-kona-sequencer variant already covers the kona-sequencer + mixed-validator topology with 1 of each type. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
theochap
approved these changes
Mar 15, 2026
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## develop #19553 +/- ##
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Coverage 75.5% 75.5%
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Files 675 675
Lines 71571 71571
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+ Hits 54069 54090 +21
+ Misses 17358 17337 -21
Partials 144 144
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ClaytonNorthey92
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Mar 19, 2026
…ism#19553) The large-kona-sequencer config (1 kona sequencer + 4 reth validators + 4 geth validators) runs the same tests as simple-kona-sequencer with no additional test logic — the tests just iterate over more nodes. The only difference is scale, but with 20+ processes on xlarge (8 vCPU, 16GB), kona-node engine API calls intermittently time out under resource pressure, causing TestSyncSafe to flake. The simple-kona-sequencer variant already covers the kona-sequencer + mixed-validator topology with 1 of each type. Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
ClaytonNorthey92
pushed a commit
to hemilabs/optimism
that referenced
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Mar 23, 2026
…ism#19553) The large-kona-sequencer config (1 kona sequencer + 4 reth validators + 4 geth validators) runs the same tests as simple-kona-sequencer with no additional test logic — the tests just iterate over more nodes. The only difference is scale, but with 20+ processes on xlarge (8 vCPU, 16GB), kona-node engine API calls intermittently time out under resource pressure, causing TestSyncSafe to flake. The simple-kona-sequencer variant already covers the kona-sequencer + mixed-validator topology with 1 of each type. Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Remove the
large-kona-sequencerdevnet config from the rust-e2e CI pipeline. It runs the same tests assimple-kona-sequencer— the test code just iterates over more nodes in the preset slices. There's no test logic that specifically exercises multi-peer scenarios.With 9 CL + 9 EL nodes (~20 processes) on
xlarge(8 vCPU, 16GB), kona-node engine API calls intermittently time out under resource pressure, causingTestSyncSafeto flake with "operation failed permanently after 80 attempts: expected head to advance: local-safe".What's removed
large-kona-sequencerfrom the CI matrix inrust-e2e.ymllarge-kona-sequencerfrom therequired-rust-e2egaterust/kona/tests/justfileWhat remains
simple-kona-sequencer(1 kona sequencer + 1 reth validator + 1 geth validator) covers the same topology.Test plan
rust-e2e-simple-kona-sequencerstill passesrequired-rust-e2egate no longer references the removed job🤖 Generated with Claude Code