Why Can't I View the Monitoring Data?

If topic monitoring data is not displayed, the possible causes are as follows:

• The topic name starts with a special character, such as a number sign (#).
• On Cloud Eye, a special character (.) is counted as five characters. The name of a topic contains periods (.) and the counted total length exceeds 256 characters.
• No topic is created in the Kafka instance.

Solution:

• Delete topics whose names contain special characters.
• Delete topics whose names contain special characters (.).
• Create a topic.

If consumer group monitoring data is not displayed, the possible causes are as follows:

• The consumer group name starts with a special character, such as a number sign (#).
• On Cloud Eye, a special character (.) is counted as five characters. The name of a consumer group contains periods (.) and the counted total length exceeds 256 characters.
• No consumers in the group have connected to the instance.

Solution:

• Delete consumer groups whose names contain special characters.
• Delete consumer groups whose names contain special characters (.).
• Consume messages using this consumer group.

Cloud Eye counts a period (.) as five characters. When monitoring data cannot be displayed, check whether the name of the monitored object contains periods (.) and whether the total length exceeds 256 characters.