prometheus-k8s-0 ends in CrashLoopBackOff with evel=error err="opening storage failed: /prometheus/chunks_head/000002: invalid magic number 0" on SNO after hard reboot tests

4.11.6

Not always, after ~10 attempts

1. Deploy SNO with Telco DU profile applied
2. Hard reboot node via out of band interface
3. oc -n openshift-monitoring get pods prometheus-k8s-0 

NAME               READY   STATUS             RESTARTS          AGE
prometheus-k8s-0   5/6     CrashLoopBackOff   125 (4m57s ago)   5h28m

Running

Attaching must-gather.

The pod recovers successfully after deleting/re-creating.


[kni@registry.kni-qe-0 ~]$ oc -n openshift-monitoring logs prometheus-k8s-0
ts=2022-09-26T14:54:01.919Z caller=main.go:552 level=info msg="Starting Prometheus Server" mode=server version="(version=2.36.2, branch=rhaos-4.11-rhel-8, revision=0d81ba04ce410df37ca2c0b1ec619e1bc02e19ef)"
ts=2022-09-26T14:54:01.919Z caller=main.go:557 level=info build_context="(go=go1.18.4, user=root@371541f17026, date=20220916-14:15:37)"
ts=2022-09-26T14:54:01.919Z caller=main.go:558 level=info host_details="(Linux 4.18.0-372.26.1.rt7.183.el8_6.x86_64 #1 SMP PREEMPT_RT Sat Aug 27 22:04:33 EDT 2022 x86_64 prometheus-k8s-0 (none))"
ts=2022-09-26T14:54:01.919Z caller=main.go:559 level=info fd_limits="(soft=1048576, hard=1048576)"
ts=2022-09-26T14:54:01.919Z caller=main.go:560 level=info vm_limits="(soft=unlimited, hard=unlimited)"
ts=2022-09-26T14:54:01.921Z caller=web.go:553 level=info component=web msg="Start listening for connections" address=127.0.0.1:9090
ts=2022-09-26T14:54:01.922Z caller=main.go:989 level=info msg="Starting TSDB ..."
ts=2022-09-26T14:54:01.924Z caller=tls_config.go:231 level=info component=web msg="TLS is disabled." http2=false
ts=2022-09-26T14:54:01.926Z caller=main.go:848 level=info msg="Stopping scrape discovery manager..."
ts=2022-09-26T14:54:01.926Z caller=main.go:862 level=info msg="Stopping notify discovery manager..."
ts=2022-09-26T14:54:01.926Z caller=manager.go:951 level=info component="rule manager" msg="Stopping rule manager..."
ts=2022-09-26T14:54:01.926Z caller=manager.go:961 level=info component="rule manager" msg="Rule manager stopped"
ts=2022-09-26T14:54:01.926Z caller=main.go:899 level=info msg="Stopping scrape manager..."
ts=2022-09-26T14:54:01.926Z caller=main.go:858 level=info msg="Notify discovery manager stopped"
ts=2022-09-26T14:54:01.926Z caller=main.go:891 level=info msg="Scrape manager stopped"
ts=2022-09-26T14:54:01.926Z caller=notifier.go:599 level=info component=notifier msg="Stopping notification manager..."
ts=2022-09-26T14:54:01.926Z caller=main.go:844 level=info msg="Scrape discovery manager stopped"
ts=2022-09-26T14:54:01.926Z caller=manager.go:937 level=info component="rule manager" msg="Starting rule manager..."
ts=2022-09-26T14:54:01.926Z caller=main.go:1120 level=info msg="Notifier manager stopped"
ts=2022-09-26T14:54:01.926Z caller=main.go:1129 level=error err="opening storage failed: /prometheus/chunks_head/000002: invalid magic number 0"