looks like you have not changed the default data log directory. By default kafka is configured to store the data logs to /tmp/ folder. /tmp gets cleared on system reboots. change log.dirs config property to some other directory.
On Thu, Sep 15, 2016 at 11:46 AM, Ali Akhtar <ali.rac...@gmail.com> wrote: > I've noticed that, on my own machine, if I start a kafka broker, then > create a topic, then I stop that server and restart it, the topic I created > is still kept. > > However, on restarts, it looks like the topic is deleted. > > Its also possible that the default retention policy of 24 hours causes the > messages to be deleted. > > However, even if the messages are deleted, shouldn't the topic itself be > preserved? > > What would happen if there are no new messages posted to a topic for a > week, but I still have consumers listening to that topic? If the topic is > deleted, will I need to restart my consumer? This seems like a pain. >