TiKV is not well balanced after scaling out

Note:
This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: tikv 扩容后 不太均衡

| username: jeff

[TiDB Version] 4.0.13
[Encountered Problem: Problem Phenomenon and Impact] Regions are unbalanced after scaling out
[Resource Configuration] Go to TiDB Dashboard - Cluster Info - Hosts and take a screenshot of this page
[Attachments: Screenshots/Logs/Monitoring]
3w3DZWP2u5

| username: tidb菜鸟一只 | Original post link

Isn’t this basically balanced? You can send the topology diagram to check if the configurations of each machine are consistent.

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

  1. Your monitoring overall seems relatively balanced.
  2. Regions vary in size and absolute balance is not achievable, but overall it looks fine.
  3. You can check if there are any empty regions; if so, you can enable cross-table region merging.
| username: Kongdom | Original post link

Balance does not mean they have to be exactly the same. You can check the scores of each TiKV node to see if there are any differences.

| username: zhanggame1 | Original post link

It doesn’t seem to have any issues.

| username: Jellybean | Original post link

From the two monitoring graphs you posted, it is already basically balanced.

If the hardware configuration of each node is the same, then the curves can eventually overlap. You can wait a little longer to observe.

You can also explain in detail the areas you think are unbalanced.

| username: system | Original post link

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.