Merge pull request #11416 from hashicorp/f-rejected-info

core: bump rejected plans from debug -> info

.changelog/11416.txt

@@ -0,0 +1,3 @@
+```release-note:improvement
+core: Elevated rejected node plan log lines to help diagnose #9506
+```

nomad/plan_apply.go

@@ -477,7 +477,14 @@ func evaluatePlanPlacements(pool *EvaluatePool, snap *state.StateSnapshot, plan
 		if !fit {
 			// Log the reason why the node's allocations could not be made
 			if reason != "" {
-				logger.Debug("plan for node rejected", "node_id", nodeID, "reason", reason, "eval_id", plan.EvalID)
+				//TODO This was debug level and should return
+				//to debug level in the future. However until
+				//https://github.com/hashicorp/nomad/issues/9506
+				//is resolved this log line is the only way to
+				//monitor the disagreement between workers and
+				//the plan applier.
+				logger.Info("plan for node rejected, refer to https://www.nomadproject.io/s/port-plan-failure for more information",
+					"node_id", nodeID, "reason", reason, "eval_id", plan.EvalID)
 			}
 			// Set that this is a partial commit
 			partialCommit = true

website/redirects.js

@@ -189,6 +189,14 @@ module.exports = [
     permanent: true,
   },
 
+  // /s/* redirects for useful links that need a stable URL but we may need to
+  // change its destination in the future.
+  {
+    source: '/s/port-plan-failure',
+    destination: 'https://github.com/hashicorp/nomad/issues/9506',
+    permanent: false,
+  },
+
   // Spark guide links are all repointed to deprecated nomad-spark repo
   {
     source: '/guides/spark',