Define a constant instead of duplicating this literal "total" 8 times.

[AuroraLiu0823]

Code Path:confignode/src/main/java/org/apache/iotdb/confignode/manager/load/LoadManagerMetrics.java

Duplicated string literals make the process of refactoring error-prone, since you must be sure to update all occurrences.
On the other hand, constants can be referenced from many places, but only need to be updated in a single place.

[github-actions]

Hi, this is your first issue in IoTDB project. Thanks for your report. Welcome to join the community!

[try-agaaain]

Has this issue been fixed? 'total' seems to be defined as METRIC_STATUS_ONELINE

[auula]

Has this issue been fixed? 'total' seems to be defined as METRIC_STATUS_ONELINE

i have seen too，it seems that is : METRIC_TAG_TOTAL

[try-agaaain]

So this issue can be closed?

[auula]

The current requirement seems fine, I additionally changed the other strings to constants #7835 .