Hi, I am sorry but not ack'ing means there will be data loss... you only deal with that by using ack's.
On Sunday, October 12, 2014, Vladi Feigin <[email protected]> wrote: > Hi ALL, > > We have very weird topology behavior : after a few hours it starts to lose > the tuples. > We read the messages from Kafka. We know how many messages producer sends > so we are sure there are significant tuples loss when comparing send vs. > received. > > We don't see the exceptions in our code. We don't use acks. The topology > is not isolated. > Storm version 0.82 > > We suspect that Storm for some reason reallocates the workers between > nodes (physical machines) and this causes significant data loss. > > Do you have experience with such behavior? How do you cope with this? (We > want to avoid acking because performance is important to us). How to > monitor this? > > Thank you, > Vladi > > > -- Kindly yours, Andrew Grammenos -- PGP PKey -- <https://www.dropbox.com/s/2kcxe59zsi9nrdt/pgpsig.txt> https://www.dropbox.com/s/ei2nqsen641daei/pgpsig.txt
