Hello,
I have a topology with two bolt types (among others) which I am not certain
about how will work. One of the bolts has a custom made stateful component The
other bolt type, the "configurator" configures that component under certain
conditions and on input from a spout, prepares a configuration, and
communicates with a database in the process. That works fine, but the point
that bothers me is that I have to configure my stateful component on start-up
with some values in the database, but I want to keep the logic in that bolt
clear, without database access. So my solution is to access the database and
read the configuration on the "configurator" startup and emit it. But what if
the stateful bolt is not up yet? Will the messages get persisted (no sign of
something like that in the Storm documents), or the prepare command is executed
after the topology is set up?
In short, how to handle this situation?
Best regards
