Hi Howard, The offsets are persisted in the __consumer_offsets topic indefinitely. Since you're using manual commit, have you ensured that auto.offset.reset is disabled? It might also help if you provide a little more detail on how you're verifying that offsets were lost.
-Jason On Mon, Jan 11, 2016 at 7:42 AM, Wang, Howard <howard.w...@washpost.com> wrote: > Hi, > > I have a question regarding the Kafka 0.9 Consumer Group . I manually > commit offsets using the Kafka 0.9 Consumer created with a consumer group. > > However, after my app restarted totally from scratch, the consumer group > seems to lose all the offsets. Is that true that the consumer offsets are > transient and will be gone after the consumer group has no member and gets > deleted? > > Thanks. > > Howard > -- > Howard Wang > Engineering - Big Data and Personalization > Washington Post Media > > 1150 15th St NW, Washington, DC 20071 > p. 202-334-9195 > Email: howard.w...@washpost.com >
