Yes.. if i used prepare or open on spouts or bolts it would work, but unfortunately it would be a bit brittle. I'd have to include a spout or bolt just for initializing my invariant code... i'd rather do that when the topology is activated on the worker.. so this seems like a good use of an activated() method on the StormTopology class (where activated() would be called after the StormTopology is deserialized by the worker node process).
But, if there is no such method, I will make do with what is there. thanks for your response. chris On Mon, Jun 2, 2014 at 6:28 AM, Marc Vaillant <vaill...@animetrics.com> wrote: > The bolt base classes have a prepare method: > > > https://storm.incubator.apache.org/apidocs/backtype/storm/topology/base/BaseBasicBolt.html > > and the spout base classes have a similar activate method: > > > https://storm.incubator.apache.org/apidocs/backtype/storm/topology/base/BaseRichSpout.html > > Is that sufficient for your needs or were you thinking of something > different? > > Marc > > On Sun, Jun 01, 2014 at 04:47:03PM -0700, Chris Bedford wrote: > > Hi there - > > > > I would like to set up some state that spouts and bolts share, and I'd > like to > > prepare this state when the StormTopology gets 'activated' on a worker. > > > > it would be great if the StormTopology had something like a prepare or > open > > method to indicate when it is starting. I looked but i could find no > such API. > > Maybe I should submit an enhancement request ? > > > > Thanks in advance for your responses, > > - Chris > > > > > > > > [ if anyone is curious, the shared state is for all my application code > to > > check or not check invariants. the invariant checking takes additional > time, > > so we don't want to do it in production.. but during testing/development > it > > helps catch bugs]. > > > > -- > > Chris Bedford > > > > Founder & Lead Lackey > > Build Lackey Labs: http://buildlackey.com > > Go Grails!: http://blog.buildlackey.com > > > > > -- Chris Bedford Founder & Lead Lackey Build Lackey Labs: http://buildlackey.com Go Grails!: http://blog.buildlackey.com
