Apache IoTDB is an effort undergoing incubation at The Apache Software Foundation (ASF).Incubation is required of all newly accepted projects until a further review indicates that theinfrastructure, communications, and decision making process have stabilized in a manner consistentwith other successful ASF projects. While incubation status is not necessarily a reflection of thecompleteness or stability of the code, it does indicate that the project has yet to be fullyendorsed by the ASF.
：Code submit frequency
：React/respond to issue & PR etc.
：Well-balanced team members and collaboration
：Recent popularity of project
：Star counts, download counts etc.