Confusing documentation for Trident State Management

Hi, We have been using Storm for more than an year now and generally very happy with the product. However I want to bring up a concern for the documentation of Trident. Me and a few colleagues went over the documentation at http://storm.apache.org/releases/current/Trident-state.html But it is

Re: Cassandra spout

There is a storm-jdbc component https://github.com/apache/storm/tree/master/external/storm-jdbc And it talks something about "lookup from database" But its not really clear whether there is a JdbcSpout or not. A quick search through the code does not show JdbcSpout exists. If there were one, you

Should zookeeper be run on the worker machines?

Hi, Can someone please respond to this zookeeper-for-storm Stack-Overflow question: http://stackoverflow.com/questions/40755137/should-zookeeper-be-run-on-the-worker-machines Thanks TI

Re: Is this the list of metrics reported by storm in JMX?

supervisor, currently I only see "num-slots-used-gauge". > > Someone else please correct me if I've missed something. > > Thanks > > Alessandro > > > > > > On Friday, October 14, 2016 12:58 AM, Tech Id <tech.login@gmail.com>

Is this the list of metrics reported by storm in JMX?

Hi, I know there are plans to revamp the current metrics system. But until then, I just wanted to confirm the metrics I have got through JMX and if that is expected. I added the following to *worker.options*: -Dcom.sun.management.jmxremote \ -Dcom.sun.management.jmxremote.port=1%ID% \

Re: Does one port in supervisor.slots.ports translate to one physical JVM?

Thanks. Somehow this was slightly unclear in the docs. On Thu, Oct 13, 2016 at 3:49 PM, P. Taylor Goetz <ptgo...@gmail.com> wrote: > Answered there as well, but yes, one port == one slot == one JVM. > > -Taylor > > > On Oct 13, 2016, at 6:17 PM, Tech Id <tech

Does one port in supervisor.slots.ports translate to one physical JVM?

Hi, Does anyone know the answer to this question? http://stackoverflow.com/questions/40031917/does-a-port-in-supervisor-slots-ports-translate-to-one-physical-jvm Thanks TI

Re: [DISCUSS] Provision for dead-letter topic in storm

Any more thoughts on this? Seems like a useful feature for all the spouts/bolts. On Wed, Sep 21, 2016 at 9:09 AM, S G wrote: > Thank you Aaron. > > We use Kafka and JMS spouts and several bolts - Elastic-Search, Solr, > Cassandra, Couchbase and HDFS in different

Re: How does Storm's OutputCollector work?

eptember 12, 2016 12:09 AM, Manu Zhang < > > owenzhang1...@gmail.com> wrote: > > > > > > Hi T.I., > > > > Answered your question on StackOverflow. Hope that helps. > > > > Thanks, > > Manu > > > > On Mon, Sep 12, 2016 at 11:36 AM T

How does Storm's OutputCollector work?

Hi, Can someone help provide a better understanding of Storm's OutputCollector? A question for the same can be found at http://stackoverflow.com/questions/39439336/how-does-storms-outputcollector-work Thanks, T.I.