Re: ZK, Kafka, Streamclient not cleanly starting up (two issues)

2017-01-31 Thread Peter Kopias
n a 1 zk, 1 kafka, 1 client topology. (localhost) On Jan 31, 2017 7:18 PM, "Damian Guy" wrote: I think this might be an issue related to having auto.create.topics.enabled=true (the default). Try setting auto.create.topics.enabled=false in server.properties. On Tue, 31 Jan 2017 at 17:

ZK, Kafka, Streamclient not cleanly starting up (two issues)

2017-01-31 Thread Peter Kopias
Hello. I've got a local virtual development environment, with: - kafka 0.10.1.1 - java version "1.8.0_121" I don't need anything special, this is just for trial, so I set up zk and kafka and the stream processor to use /tmp for data, log and state. It's not persistent, but I can always try

Re: Console producer can connect locally but not locally

2017-01-25 Thread Peter Kopias
Hi. This looks like some network / config issue. 1. Check that zookeeper (zkA) is available and reachable from both hosts (and it can connect). (check etc/hosts on both machines, there might be some 127.0.0.1 issues there). 2. Verify, that the process bound to the public network interface:9092

Re: Streams: Global state & topic multiplication questions

2017-01-20 Thread Peter Kopias
w.confluent.io/blog/unifying-stream-processing- > and-interactive- > > queries-in-apache-kafka/>). That can be seen as a current, materialized > > view of the state. There is some example code in the blog. > > > > Eno > > > > > > > On 19 Jan 2017, at 16:11,

Re: Streams: Global state & topic multiplication questions

2017-01-19 Thread Peter Kopias
s, based on a predicate. I think that could help. > > About Q2: I'm not entirely sure I understand the problem space. What is > the definition of a "full image"? > > Thanks > Eno > > On 19 Jan 2017, at 12:07, Peter Kopias wrote: > > > > Greetings E

Streams: Global state & topic multiplication questions

2017-01-19 Thread Peter Kopias
Greetings Everyone, I'm just getting into the kafka world with a sample project, and I've got two conceptional issues, you might have a trivial answer already at hand to. Scenario: multiuser painting webapp, with N user working on M images simultaneously. The "brush" events go to one single k