There is always a table named table0 in the traffic visualization of the dashboard

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

Original topic: dashbord的流量可视化中总有一个table0的表

| username: 烂番薯0

In this traffic visualization, there is always a table named table0 in either the read hotspot or the write hotspot, but this table does not exist in the database. Could anyone tell me where this table is? What impact would a hotspot have? Some tables use auto-increment, but it can’t be changed to auto_random. How should this hotspot be eliminated?

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

There’s no hotspot here; this is basically an empty database, right?

| username: 烂番薯0 | Original post link

Huh? Is this an empty database? But the two highlighted ones above have tables.

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

What I mean by an empty database is not completely empty, but rather a database that is rarely used. Generally, a busy database will display many tables on the left side, but yours shows even meta and mysql as being so wide.

| username: 烂番薯0 | Original post link

But why does such a rarely used library have such a prominent display?

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

Brightness is relative; the higher the traffic, the brighter it is. Yours is the brightest, meaning other regions have lower traffic compared to this one. There is a bar above that can adjust the brightness.

| username: 烂番薯0 | Original post link

Does that mean this is an empty table and not a hotspot issue? What else does it mean?

| username: wangccsy | Original post link

Is it a basic empty table?

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

It means that this diagram is completely fine and not a hotspot issue.

| username: dba远航 | Original post link

The database is very idle.

| username: 烂番薯0 | Original post link

It feels like an empty table, but I don’t know why the heatmap is always on. It shouldn’t be on theoretically.

| username: 烂番薯0 | Original post link

The database is idle, why is there a hotspot?

| username: 烂番薯0 | Original post link

Ah, then why are there a few bright horizontal lines?

| username: forever | Original post link

Just because it’s highlighted doesn’t mean it’s a hotspot. It only significantly affects performance if it’s much darker in color compared to others. In your case, it’s an empty database, and even if there’s one table in use, it will show up but it’s not hot.

| username: 烂番薯0 | Original post link

Oh, I see. As long as there is a table query, it will light up. I thought it would light up only if there was a hotspot.

| username: system | Original post link

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