comment out UPDATE CONFIGS in importer example (#1236)

To remove confusion on `local config: true` cluster users

close #1235

docs-2.0/nebula-importer/use-importer.md

@@ -155,15 +155,16 @@ clientSettings:
  user: user
  password: password
  address: 192.168.11.13:9669,192.168.11.14:9669
- postStart:
- commands: |
- UPDATE CONFIGS storage:wal_ttl=3600;
- UPDATE CONFIGS storage:rocksdb_column_family_options = { disable_auto_compactions = true };
- afterPeriod: 8s
- preStop:
- commands: |
- UPDATE CONFIGS storage:wal_ttl=86400;
- UPDATE CONFIGS storage:rocksdb_column_family_options = { disable_auto_compactions = false };
+ # # 只有 local_config 是 false 的情况下，才可以通过 UPDATE CONFIGS 更新配置
+ # postStart:
+ # commands: |
+ # UPDATE CONFIGS storage:wal_ttl=3600;
+ # UPDATE CONFIGS storage:rocksdb_column_family_options = { disable_auto_compactions = true };
+ # afterPeriod: 8s
+ # preStop:
+ # commands: |
+ # UPDATE CONFIGS storage:wal_ttl=86400;
+ # UPDATE CONFIGS storage:rocksdb_column_family_options = { disable_auto_compactions = false };
 ```
 
 |参数|默认值|是否必须|说明|