fix HA launch

Author: mattkjames7

charts/memgraph-high-availability/templates/cluster-setup.yaml

@@ -93,8 +93,37 @@ spec:
                 local query="$2"
                 local max_attempts=20
                 local attempt=0
+                local show_instances_output
+
+                ddl_already_applied() {
+                  local current_step="$1"
+                  show_instances_output="$(run_mgconsole 'SHOW INSTANCES;' 2>/dev/null || true)"
+                  [[ -z "$show_instances_output" ]] && return 1
+
+                  case "$current_step" in
+                    "ADD COORDINATOR "*)
+                      local coordinator_id="${current_step##* }"
+                      [[ "$show_instances_output" == *"\"coordinator_${coordinator_id}\""* ]]
+                      ;;
+                    "REGISTER INSTANCE "*)
+                      local instance_name="${current_step##* }"
+                      [[ "$show_instances_output" == *"\"${instance_name}\""* ]]
+                      ;;
+                    "SET INSTANCE instance_1 TO MAIN")
+                      [[ "$show_instances_output" == *"\"instance_1\""* ]] && [[ "$show_instances_output" == *"\"main\""* ]]
+                      ;;
+                    *)
+                      return 1
+                      ;;
+                  esac
+                }
 
                 while [ $attempt -lt $max_attempts ]; do
+                  if ddl_already_applied "$step"; then
+                    echo "ℹ️ ${step} already present in cluster state; continuing"
+                    return 0
+                  fi
+
                   set +e
                   local output
                   output="$(run_mgconsole "$query")"
@@ -112,9 +141,12 @@ spec:
                   if [[ "$output_lc" == *"already exists"* ]] || \
                      [[ "$output_lc" == *"already set"* ]] || \
                      [[ "$output_lc" == *"already a main"* ]] || \
-                     [[ "$output_lc" == *"is already main"* ]]; then
-                    echo "ℹ️ ${step} already applied; continuing"
-                    return 0
+                     [[ "$output_lc" == *"is already main"* ]] || \
+                     [[ "$output_lc" == *"request forwarded to the leader but leader failed with request processing"* ]]; then
+                    if ddl_already_applied "$step"; then
+                      echo "ℹ️ ${step} already applied; continuing"
+                      return 0
+                    fi
                   fi
 
                   attempt=$((attempt+1))