show stats report "key not existed" error before submit job stats

[yixinglu]

version: 2.5.0

2021/08/25 17:13:53 [INFO] connection pool is initialized successfully

Welcome to Nebula Graph!

(root@nebula) [(none)]> use nba;
Execution succeeded (time spent 5821/6103 us)

Wed, 25 Aug 2021 17:13:55 CST

(root@nebula) [nba]> show stats
[ERROR (-1005)]: Key not existed!

Wed, 25 Aug 2021 17:14:13 CST

(root@nebula) [nba]> submit job stats
+------------+
| New Job Id |
+------------+
| 35         |
+------------+
Got 1 rows (time spent 6470/6997 us)

Wed, 25 Aug 2021 17:14:55 CST

(root@nebula) [nba]> show stats
+---------+------------+-------+
| Type    | Name       | Count |
+---------+------------+-------+
| "Tag"   | "bachelor" | 1     |
+---------+------------+-------+
| "Tag"   | "player"   | 56    |
+---------+------------+-------+
| "Tag"   | "team"     | 30    |
+---------+------------+-------+
| "Edge"  | "like"     | 81    |
+---------+------------+-------+
| "Edge"  | "serve"    | 152   |
+---------+------------+-------+
| "Edge"  | "teammate" | 10    |
+---------+------------+-------+
| "Space" | "vertices" | 86    |
+---------+------------+-------+
| "Space" | "edges"    | 243   |
+---------+------------+-------+
Got 8 rows (time spent 3744/4352 us)

Wed, 25 Aug 2021 17:14:59 CST

[panda-sheep]

The original case was like this, which was in line with expectations.
Or need to update the error message.

[yixinglu]

The original case was like this, which was in line with expectations.
Or need to update the error message.

There is no any stats info to show is better than The key not existed!. please give users a more user-friendly error message.