https://storm.apache.org/documentation/Fault-tolerance.html
On 07/06/2015 07:47 AM, Thilina Rathnayake wrote: > I recently got to know about storm and I find it really interesting. I > want to know > what happens when a storm supervisor goes down. > > I am going through the following article to play with storm a bit and > get to know > what's really going on. > > http://www.michael-noll.com/tutorials/running-multi-node-storm-cluster/ > > I successfully started zookeeper, nimbus, storm UI and a single supervisor. > Also, I uploaded the WordCount topology in storm-starter example and got > it running. I am monitoring this through the storm UI. > > However, when I kill my supervisor (using ctrl-c), I can see that all > the emitted, > transferred columns reset in the topology summary window in UI. When I > restart > the supervisor, it starts from zero. Does this mean that I have lost > some of the > state informations associated with my topology when the supervisor went > down? > > Thanks in advance for any clarifications. > > Regards, > Thilina
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