The store region score of individual TiKV nodes may be inconsistent

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

Original topic: 个别tikv节点store region score会不一致

| username: beacoolkid

[TiDB Usage Environment] Production Environment / Testing / PoC
[TiDB Version]
[Reproduction Path] What operations were performed when the issue occurred
[Encountered Issue: Issue Phenomenon and Impact]
For TiKV nodes with the same configuration, it is observed that the store region score trend of 2 TiKV nodes is different from other nodes. How can this issue be resolved?
[Resource Configuration]
[Attachments: Screenshots/Logs/Monitoring]

| username: WalterWj | Original post link

Score jump? Is it because the disk usage has reached 60%?

| username: Kongdom | Original post link

It is normal for scores to be inconsistent, but if the scores gradually decrease, you should check the server resource usage of the corresponding nodes.

| username: tidb菜鸟一只 | Original post link

It’s normal to have inconsistencies, but constant changes are not normal. Check if the machine’s resource utilization is too high, including disk usage.

| username: beacoolkid | Original post link

Yes, these two nodes are at 64%, while the other nodes are at 59%. How can we adjust this?

| username: beacoolkid | Original post link

Yes, the disk usage of these two nodes is at 64%, while the other nodes are at 59%.

| username: 小龙虾爱大龙虾 | Original post link

It’s probably an algorithm issue. Quickly add more data until the usage exceeds 60%.

| username: Jellybean | Original post link

Check the distribution of the number of Regions and Leaders, the storage space usage of the nodes, and see if there are any similar anomalies.

| username: dba远航 | Original post link

The remaining disk size will have an impact. There are two related parameters; you should check them.

| username: WalterWj | Original post link

It should be this, adjust the threshold using pd-ctl, or it will be fine if the disk usage exceeds 60%.

| username: system | Original post link

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