[core] Correct the wording in the OnNodeDead logs to avoid confusion (#51668)

Signed-off-by: Kai-Hsun Chen <kaihsun@anyscale.com>

Author: kevin85421

src/ray/gcs/gcs_server/gcs_actor_manager.cc

@@ -1294,7 +1294,7 @@ void GcsActorManager::OnWorkerDead(const ray::NodeID &node_id,
 void GcsActorManager::OnNodeDead(std::shared_ptr<rpc::GcsNodeInfo> node,
                                  const std::string node_ip_address) {
   const auto node_id = NodeID::FromBinary(node->node_id());
-  RAY_LOG(INFO).WithField(node_id) << "Node failed, reconstructing actors.";
+  RAY_LOG(INFO).WithField(node_id) << "Node is dead, reconstructing actors.";
   // Kill all children of owner actors on a dead node.
   const auto it = owners_.find(node_id);
   if (it != owners_.end()) {

src/ray/gcs/gcs_server/gcs_job_manager.cc

@@ -472,7 +472,7 @@ std::shared_ptr<rpc::JobConfig> GcsJobManager::GetJobConfig(const JobID &job_id)
 
 void GcsJobManager::OnNodeDead(const NodeID &node_id) {
   RAY_LOG(INFO).WithField(node_id)
-      << "Node failed, mark all jobs from this node as finished";
+      << "Node is dead, mark all jobs from this node as finished";
 
   auto on_done = [this,
                   node_id](const absl::flat_hash_map<JobID, rpc::JobTableData> &result) {

src/ray/gcs/gcs_server/gcs_placement_group_manager.cc

@@ -801,7 +801,7 @@ GcsPlacementGroupManager::GetBundlesOnNode(const NodeID &node_id) const {
 
 void GcsPlacementGroupManager::OnNodeDead(const NodeID &node_id) {
   RAY_LOG(INFO).WithField(node_id)
-      << "Node failed, rescheduling the placement groups on the dead node.";
+      << "Node is dead, rescheduling the placement groups on the dead node.";
   auto bundles = gcs_placement_group_scheduler_->GetAndRemoveBundlesOnNode(node_id);
   for (const auto &bundle : bundles) {
     auto iter = registered_placement_groups_.find(bundle.first);