TiDB 7.5.1 Dashboard Page Access Error 1105 Due to Load Calibration

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Original topic: tidb7.5.1 dashboard 页面访问通过负载校准 报错1105

| username: 田帅萌7

[TiDB Usage Environment] Production Environment / Testing / PoC
[TiDB Version] 7.5.1
[Reproduction Path] What operations were performed when the issue occurred
[Encountered Issue: Issue Phenomenon and Impact]
[Resource Configuration] Go to TiDB Dashboard - Cluster Info - Hosts and take a screenshot of this page
[Attachments: Screenshots/Logs/Monitoring]

Empty cluster newly created

| username: 裤衩儿飞上天 | Original post link

By load calibration, choose the time period with high load to do it.

| username: lemonade010 | Original post link

You can refer to the detailed instructions at CALIBRATE RESOURCE | PingCAP 文档中心.
If the application is already running online, or if you can run actual business tests, it is recommended to use a period of actual load to estimate the total capacity. To improve the accuracy of the estimation, the following constraints need to be observed:

  • Use the START_TIME parameter to specify the start time of the estimation, in the format 2006-01-02 15:04:05. The default end time for the estimation is the current time.
  • After specifying the START_TIME parameter, you can use the END_TIME parameter to specify the end time of the estimation, or use the DURATION parameter to specify the estimation time window relative to START_TIME.
  • The time window range is from 10 minutes to 24 hours.
  • During the estimated time window, the CPU utilization of TiDB and TiKV should not be too low, otherwise, capacity estimation cannot be performed.
| username: dba远航 | Original post link

The empty cluster runtime is too short, resulting in insufficient information. It should be fine after a while.

| username: tidb菜鸟一只 | Original post link

You don’t have any business yet, so how can he adjust resource allocation based on your business?