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Version: 0.6

Java

Create Service​

To experience the full power of GreptimeCloud, you need to create a service which contains a database with authentication. Open the GreptimeCloud console, signup and login. Then click the New Service button and config the following:

  • Service Name: The name you want to describe your service.
  • Description: More information about your service.
  • Region: Select the region where the database is located.
  • Plan: Select the pricing plan you want to use.

Now create the service and we are ready to write some metrics to it.

Write data​

Use the following command to collect JVM runtime metrics, such as CPU and memory usage, and send them to GreptimeDB. This demo is based on OpenTelemetry OTLP/http. The source code is available on GitHub.

curl -L https://github.com/GreptimeCloudStarters/quick-start-java/releases/latest/download/greptime-quick-start-java-all.jar \
--output quick-start.jar && java -jar quick-start.jar -e https://<host>/v1/otlp/v1/metrics -db <dbname> -u <username> -p <password>

Visualize Data​

After successfully writing data to the service, you can view the data on the GreptimeCloud dashboard. The dashboard provides a variety of visualizations to help you understand, monitor and analyze the data.

Here, we create a panel that displays the 95% CPU usage as an example. To do this, click the Add Panel button, select a table that contains the CPU usage data, and then choose the 95% aggregation method. Finally, click the Save button to save the panel. You can now see the new panel and set up an alert rule for it.