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sender = sender or current_app.extensions['mail'].default_sender

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I use flask_mail in blueprint，`app = Flask(__name__)` in app.py so I first `from app import app` in blueprint then set sender `app.config["MAIL_DEFAULT_SENDER"] ` finally `mail = Mail(app)` when run `msg...

I have a question. Is there any parameter that can be set for the multi-panel dashboard to set query concurrency or caching, etc. to speed up the query

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### Question and Steps to reproduce 使用的是夜莺的v8.0.0-beta.10，k8s集群部署。 现在看板中的panel比较多，打开后加载较慢，想请教下夜莺是否有对应的参数设置，比如调大查询并发，设置查询缓存等 ### Relevant logs and configurations ```text 无 ``` ### Version v8.0.0-beta.10

ipmitool -C 17

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When I use ipmitool to obtain machine metrics, I need to specify the - C 17 parameter, but I don't see this parameter in the exporter configuration. May I ask...