Pod should auto-restart when encountering cometbft bug.

[danbryan]

Pods stop syncing blocks periodically when they encounter th cometbft bug. Lets try to identify a way to know when this occurred, and auto restart the pod. Could be as simple as no response from the status endpoint for 2 mins.

Tasks

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1. document the bug (ie, file an issue on CometBFT repo)
2. set up our auto restart

[danbryan]

@vimystic can you provide an update on this?

[vimystic]

Is there a description of the cometbft bug itself somewhere ?

[danbryan]

@agouin are you able to describe or link to the bug?

@vimystic here is a script that identifies and restarts pods that are impacted by this bug.

#!/bin/bash

kubectl config use-context sentry-mainnet@sl-colo
PODS=( $(kubectl get pods -A | grep cosmos-sentry | awk '{print $1,$2}') )

for (( i=0; i<${#PODS[@]} ; i+=2 )) ; do
    ns="${PODS[i]}"
    pod="${PODS[i+1]}"
    kubectl logs -c node --tail=30 -n $ns $pod | grep "SignerListener: Connected" 2>&1 > /dev/null
    if [[ "$?" == "0" ]]; then
      echo "ns: ${PODS[i]} pod: ${PODS[i+1]} is stuck"
      kubectl delete --wait=false pod -n $ns $pod
    fi
done

[jonathanpberger]

depends on kubectl config secret.

[vimystic]

Blocked until https://github.com/strangelove-ventures/infra/issues/3020 is completed.

[jonathanpberger]

https://github.com/strangelove-ventures/infra/issues/3020 is complete! Unblocking.