среда, 29 октября 2014 г., 12:53:34 UTC+3 пользователь Akka Team написал: > > Hi Nikolay, > > On Tue, Oct 28, 2014 at 5:40 PM, Nicholas Ustinov <nust...@gmail.com > <javascript:>> wrote: > >> Hello. >> I'm trying to use akka persistence in our text-processing application. >> We have a lot of PersistentActor-s (around 150-200) with quite large >> state objects (100Mb and bigger, up to 1-2G) in single-node installation. >> Events are of course much smaller, but big enough too. >> And during saving snapshot we would prefer not to clone state objects, >> but write them in streaming way to reduce memory consumption. >> Is it possible now (or is it planned in future?) >> > > Currently there is no way to stream snapshot data, you need to pass the > whole thing. It might be a nice feature though. >
Well, I think, yes, it would be nice. > > >> Overall, what would smbd recommends for working with akka persistence >> with big state objects? >> > > Is there any reason why one actor needs to hold that large state? Cannot > you factor this big chunk of state into smaller actors so that you need to > snapshot smaller chunks of it? > > This is some kind of index. We already split it at domain level, but unfortunately right now we have no idea how to split it further without affecting logic too much. Currently we had to return to basic file-based state saving on per-time basis and temporarily disable akka persistence usage. > -Endre > > >> >> Thanks, >> Nikolay >> >> -- >> >>>>>>>>>> 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+...@googlegroups.com <javascript:>. >> To post to this group, send email to akka...@googlegroups.com >> <javascript:>. >> Visit this group at http://groups.google.com/group/akka-user. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Akka Team > Typesafe - The software stack for applications that scale > Blog: letitcrash.com > Twitter: @akkateam > -- >>>>>>>>>> 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 http://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.
