Encountered a large number of requests related to openai-conversation-id

I developed a plug-in one by one, because auth is not used for user authentication, so openai-ephemeral-user-id and openai-conversation-id are used as temporary user identification, but in the background log, the same openai-conversation-id has been requested more than 8,000 times. Does anyone know the specific generation rules and expiration time of openai-conversation-id and openai-ephemeral-user-id? Why can it be supported in a session openai-conversation-id Thousands of requests? Can someone help me?