On Mon, Aug 8, 2016 at 9:13 PM, oleksiys <kvr...@gmail.com> wrote: > Hi Patrik, > > no, it's not for production, but during testing we'd like to be able to > shutdown cluster nodes to make sure the app behaves properly. > In the proxy journal config file I set the "start-target-..." property to > false for all the nodes and I want to start the target journal only on the > oldest cluster member, and if/when it dies I want the second oldest cluster > member to start the target journal plugin etc... > > The problem with the PersistencePluginProxy.start(system) is that AFAIU > it checks the actual actor system config before it decides how exactly to > start the plugin, and if in the config it say "start-target-journal=false" > (as in my case) it won't start the underlying journal. >
No, it doesn't. See here: https://github.com/akka/akka/blob/master/akka-persistence/src/main/scala/akka/persistence/journal/PersistencePluginProxy.scala#L26 Note that it only works for the default plugin (null). I think there are other places in the PersistencePluginProxy where it only works for the default plugin. > > That's why I'm using that semi-hacky way to force the underlying journal > plugin to start. > > Thanks. > > WBR, > Alexey > > On Sunday, August 7, 2016 at 8:40:19 AM UTC-7, Patrik Nordwall wrote: >> >> As far as I can see the PersistencePluginProxy can only be used with the >> default journal plugin and then you would use PersistencePluginProxy.sta >> rt(system). >> >> I hope you need this for testing. PersistencePluginProxy is not intended >> for production usage. >> >> Regards, >> Patrik >> >> On Sat, Aug 6, 2016 at 12:46 AM, oleksiys <kvr...@gmail.com> wrote: >> >>> Hi, >>> >>> I have a usecase, where I'd like to be able to move the proxied journal >>> from one cluster node to another. >>> Looks like I can redirect all the journal clients using: >>> >>> *PersistencePluginProxy.setTargetLocation(someNewLocation)* >>> >>> But now on the cluster node, that has to host the journal I need to >>> actually start the actual journal plugin (considering the default journal >>> plugin is proxied-journal). >>> So I need a way to start a non-default journal plugin at runtime. >>> >>> The closest I could get to it was: >>> >>> *Persistence(system).adaptersFor(journalPluginId)* >>> >>> it looks a bit hacky, but unfortunately: >>> >>> *Persistence(system).journalFor(journalPluginId)* >>> *Persistence(system).snapshotStoreFor(snapshotStorePluginId)* >>> >>> are all in the private[akka] scope. >>> >>> Any suggestions? >>> >>> Thank you. >>> >>> WBR, >>> Alexey >>> >>> -- >>> >>>>>>>>>> Read the docs: http://akka.io/docs/ >>> >>>>>>>>>> Check the FAQ: http://doc.akka.io/docs/akka/c >>> urrent/additional/faq.html >>> >>>>>>>>>> Search the archives: https://groups.google.com/grou >>> p/akka-user >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Akka User List" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to akka-user+...@googlegroups.com. >>> To post to this group, send email to akka...@googlegroups.com. >>> Visit this group at https://groups.google.com/group/akka-user. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> >> >> -- >> >> Patrik Nordwall >> Akka Tech Lead >> Lightbend <http://www.lightbend.com/> - Reactive apps on the JVM >> Twitter: @patriknw >> >> -- > >>>>>>>>>> Read the docs: http://akka.io/docs/ > >>>>>>>>>> Check the FAQ: http://doc.akka.io/docs/akka/ > current/additional/faq.html > >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user > --- > You received this message because you are subscribed to the Google Groups > "Akka User List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to akka-user+unsubscr...@googlegroups.com. > To post to this group, send email to akka-user@googlegroups.com. > Visit this group at https://groups.google.com/group/akka-user. > For more options, visit https://groups.google.com/d/optout. > -- Patrik Nordwall Akka Tech Lead Lightbend <http://www.lightbend.com/> - Reactive apps on the JVM Twitter: @patriknw -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to akka-user@googlegroups.com. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
