From 5c6cd7f40f3579f7be768c753f8353bd4e323e71 Mon Sep 17 00:00:00 2001
From: "goodolclint-claude[bot]"
 <323206664+goodolclint-claude[bot]@users.noreply.github.com>
Date: Tue, 1 Sep 2026 07:27:31 +0000
Subject: [PATCH] ci: probe whether pmxcfs came up clustered or in local mode

Run 173 left node B with healthy corosync (2-member primary component, both
links connected) but no /etc/pve/corosync.conf, no dcdb/status journal lines,
and pvecm status reporting it is not part of a cluster. That file is
database-backed: pmxcfs creates it only when it starts with no config.db and
imports /etc/corosync/corosync.conf, so a surviving standalone config.db would
mean silent local mode.

Capture the package versions, pmxcfs command line, /etc/pve mount, .members,
the config.db and its backup dir, whether the database holds a corosync.conf
row, and the CPG group membership. Read-only; the sqlite3 CLI is not guaranteed
on a PVE node, so fall back to strings.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
---
 .../scripts/diagnose-cluster.sh               | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tests/infrastructure/scripts/diagnose-cluster.sh b/tests/infrastructure/scripts/diagnose-cluster.sh
index e5c01d1..ade5509 100644
--- a/tests/infrastructure/scripts/diagnose-cluster.sh
+++ b/tests/infrastructure/scripts/diagnose-cluster.sh
@@ -49,6 +49,26 @@ echo
 echo "--- addresses ---"
 ip -4 -o addr show scope global
 echo
+echo "--- pmxcfs mode: cluster or local? ---"
+# /etc/pve/corosync.conf is database-backed; pmxcfs only creates it when it
+# starts with no config.db and imports /etc/corosync/corosync.conf. A surviving
+# standalone config.db means silent local mode with corosync otherwise healthy.
+dpkg-query -W pve-cluster corosync 2>&1
+tr '\0' ' ' < "/proc/$(systemctl show pve-cluster -p MainPID --value)/cmdline" 2>&1; echo
+findmnt --target /etc/pve --output TARGET,SOURCE,FSTYPE 2>&1
+echo ".members: $(cat /etc/pve/.members 2>&1 | tr -d '\n')"
+ls -la /var/lib/pve-cluster/ 2>&1
+ls -la /var/lib/pve-cluster/backup/ 2>&1
+if command -v sqlite3 >/dev/null 2>&1; then
+    sqlite3 -readonly /var/lib/pve-cluster/config.db \
+        "PRAGMA quick_check; SELECT name,version,writer,mtime,length(data) FROM tree WHERE name='corosync.conf';" 2>&1
+else
+    echo "sqlite3 absent; corosync.conf occurrences in config.db: $(strings /var/lib/pve-cluster/config.db 2>/dev/null | grep -c '^corosync\.conf$')"
+fi
+echo
+echo "--- corosync-cpgtool (pmxcfs joins dcdb/status CPG groups when clustered) ---"
+corosync-cpgtool 2>&1
+echo
 echo "--- corosync.conf ---"
 cat /etc/pve/corosync.conf 2>&1 || cat /etc/corosync/corosync.conf 2>&1
 echo