wu-sheng commented on a change in pull request #7632:
URL: https://github.com/apache/skywalking/pull/7632#discussion_r699958244
##########
File path: docs/en/setup/backend/dynamic-config-nacos.md
##########
@@ -18,4 +18,64 @@ configuration:
period: ${SW_CONFIG_NACOS_PERIOD:60}
# the name of current cluster, set the name if you want to upstream system
known.
clusterName: ${SW_CONFIG_NACOS_CLUSTER_NAME:default}
-```
\ No newline at end of file
+```
+
+## Config Storage
+### Single Config
+
+| Data Id | Group | Config Value |
+|-----|-----|-----|
+| configKey | {group} | configValue |
+
+e.g. The config is:
+```
+{agent-analyzer.default.slowDBAccessThreshold}:{default:200,mongodb:50}
+```
+If `group = skywalking` the config in nacos is:
+
+| Data Id | Group | Config Value |
+|-----|-----|-----|
+| agent-analyzer.default.slowDBAccessThreshold | skywalking |
default:200,mongodb:50 |
+
+### Group Config
+
+| Data Id | Group | Config Value | Config Type |
+|-----|-----|-----|-----|
+| configKey | {group} | subItemkey1</br>subItemkey2</br>... | TEXT |
+| subItemkey1 | {group} | subItemValue1 |
+| subItemkey2 | {group} | subItemValue2 |
+| ... | ... | ... |
+
+Notice: If you add/remove a subItem, you need to add/remove the subItemKey
from the group which the subItem belongs:
+
+| Data Id | Group | Config Value | Config Type |
+|-----|-----|-----|-----|
+| configKey | {group} | subItemkey1</br>subItemkey2</br>... | TEXT |
+We separate subItemkeys by `\n` or `\r\n`, trim leading and trailing
whitespace, if you set the config by `Nacos UI` each subItemkey should in a new
line:
Review comment:
```suggestion
| configKey | {group} | subItemkey1</br>subItemkey2</br>... | TEXT |
We separate subItemkeys by `\n` or `\r\n`, trim leading and trailing
whitespace, if you set the config by `Nacos UI` each subItemkey should in a new
line:
```
You need an empty line here. Otherwise, GitHub preview looks like this
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