problem description:
client consumption using kakfa0.9 locally, consumer groups are configured into the code, and each consumer group has one consumer. Just started the consumption, there is no problem with the code consumption. After two days suddenly stopped spending, scraping the log found that the error, the consumer group has been in the dead state. When local consumption is restarted, it has not been possible to consume the log to report an error Group renewalGroup generation 1 is dead and removed.

the project is internal, and the code is not allowed to be posted