I have cache synchronized with other machines by TCP/IP but I don't know: 1) where to init it (in bolt prepare? Is it possible to do it for worker?) 2) and how to dispose it (caches uses a connection to remote http server, it's better to close it after all topologies will be deactivated).
I thinking about creating separate init topology. Is the a normal way to achieve this? How can I guarantee that this bolt will be created on each worker node? Thank you. On 15 May 2015 at 15:52, Nathan Leung <[email protected]> wrote: > Sorry misread original email. If you need to share across topologies then > you should consider something like memcache. > On May 15, 2015 6:52 PM, wrote: > >> Lazy initialized singleton. Let the os release the memory when you're >> done :). >> On May 15, 2015 6:44 PM, "Dzmitry Viarzhbitski" < >> [email protected]> wrote: >> >>> Let's I assume that I have several topologies in the same jar which are >>> using some cache. >>> I need to init cache (cache subscribed to events from different system >>> and can be reloade) and release cache when the worker will be switched of. >>> Is it possible to share static cache from multiple topologies and how to >>> shut down it (in case if I kill one topolgy other still use the cache)? >>> What should be the event release the cache (worker shutdown)? >>> >>> Thank you. >>> >>
