Method 1
Committers/PMCs firstly fetch the latest code from master branch. Then run the following command.
mvn -P site -P compile-site -P compile-site-0.12 -P compile-site-0.11 -P compile-site-0.10 -P compile-site-0.9 -P compile-site-0.8 compile scm-publish:publish-scm -pl site
After that, the website will be deployed successfully.
Please note, if you never deploy the website before, you could be asked to provide the Apache username and password.
Method 2
Log in the Jenkins CI site.
https://ci-builds.apache.org/job/IoTDB/job/IoTDB-Pipe/job/master/
Click build now.
Please note, the method 2 will execute all CI tests before deploy the website, which takes more time (over 1 hour) and more likely to fail.