Tag: Besu
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- #SRE Postmortem#SRE#Postmortem
Lineth L2 Incident Management: Postmortem (5) - An L1 Deadlock the Engine API Made Permanent
The lab's local L1 stopped producing blocks for 3 h 14 min: after a one-slot re-org, the beacon node asked the execution client to build on a block's parent, and the Engine API says it must not. Settlement stopped behind it and the coordinator wedged. A Google SRE format postmortem with the logs, the one-RPC fix, and an SLI that hid the worst withdrawals.
9 min read - #SRE Postmortem#SRE#Postmortem
Lineth L2 Incident Management: Postmortem (3) - Started Before DNS: An RPC Node With No Peer for 49 Minutes
After a planned restart, the L2's public RPC node came up a few seconds before cluster DNS, failed to resolve its only peer once, and never tried again. It looked healthy for 49 minutes while no user transaction reached the sequencer. A Google SRE format postmortem with the logs and a one-probe fix.
7 min read