neuyilan commented on a change in pull request #2483:
URL: https://github.com/apache/iotdb/pull/2483#discussion_r556995759
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File path: docs/UserGuide/System Tools/NodeTool.md
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@@ -34,7 +37,10 @@ you can specify the IP address and port of the cluster
during startup.
IP is the IP (or hostname) of the node that you expect to connect to,
and port is the JMX service port specified when the IoTDB cluster is started.
-The default values are 127.0.0.1 and 31999, respectively.
+The default values are `127.0.0.1` and `31999`, respectively.
+
+When JMX authentication service is enabled, the user name and password of JMX
service should be specified.
+The default values are `iotdb` and `passw!d`, respectively.
Review comment:
sure, i'll add the options
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