"lack of default doesn't force people to think - it gets them to pick a random number" - I suppose if I'm being pragmatic this rings very true to my experience as well... better a cluster administrator sets a sane default than having users choose random numbers!
Consider me convinced - I'll update the KIP to reflect this: if replicas, partitions and manual assignments are all missing, the cluster defaults will be used. On Tue, Apr 30, 2019 at 11:36 AM Gwen Shapira <g...@confluent.io> wrote: > Changing number of partitions is complicated in some use-cases and easy in > other cases (when you use Kafka as a big pipe of events on the way to > another system). > I like making easy things easy and complex things complicated. Having > defaults for both will allow the easy cases to be even easier. > > In my experience lack of default doesn't force people to think - it gets > them to pick a random number... (not sure there is any configuration that > can get anyone to think, unfortunately). > > On Tue, Apr 30, 2019 at 10:22 AM Almog Gavra <al...@confluent.io> wrote: > > > I have a preference toward requiring specifying partitions per topic, but > > I'm happy to be convinced otherwise. Changing replication factor after > the > > fact is easy, but changing partitions is complicated since historical > state > > gets messed up, so it could be beneficial to force clients to think about > > it up front. Furthermore, I see partitioning as a function on the scale > of > > the data while replication is a function of cluster capacity. Thoughts? > > > > On Tue, Apr 30, 2019 at 8:58 AM Ismael Juma <isma...@gmail.com> wrote: > > > > > Thanks for the KIP, Almog. This is a good change. I think we should > also > > > allow the partition count broker default to be used (the one used for > > auto > > > topic creation). > > > > > > Ismael > > > > > > On Tue, Apr 30, 2019, 8:39 AM Almog Gavra <al...@confluent.io> wrote: > > > > > > > Hello Everyone, > > > > > > > > I'd like to start a discussion on KIP-464: > > > > > > > > > > > > > > https://cwiki.apache.org/confluence/display/KAFKA/KIP-464%3A+Default+Replication+Factor+for+AdminClient%23createTopic > > > > > > > > It's about allowing users of the AdminClient to supply only a > partition > > > > count and to use the default replication factor configured by the > kafka > > > > cluster. Happy to receive any and all feedback! > > > > > > > > Cheers, > > > > Almog > > > > > > > > > > > > -- > *Gwen Shapira* > Product Manager | Confluent > 650.450.2760 | @gwenshap > Follow us: Twitter <https://twitter.com/ConfluentInc> | blog > <http://www.confluent.io/blog> >
