Hi Christian,
> just saw that the SelectedSnapshot issue seems to be related to the > akka.persistence casbah mongodb plugin and was fixed a few days ago. I also > had a look again at the snapshot serializer and saw this: > > val header = SnapshotHeader(snapshotSerializer.identifier, > snapshotManifest) val headerSerializer = > *extension.findSerializerFor(header)* val headerBytes = headerSerializer. > toBinary(header) > I haven't found a serializer for the SnapshotHeader only the Snapshot. > Did I just miss it? > Nope, I haven't found one either, this is a bug it seems. I opened a ticket: https://github.com/akka/akka/issues/16009 -Endre > > Regards, > Christian > > Am Dienstag, 30. September 2014 17:38:54 UTC+2 schrieb Christian > Kitzmueller: > >> Hi, >> >> we are using protobuf to serialize our messages - I have to check if we >> might have missed one. From your comment I conclude that akka persistence >> itself shouldn't be an issue and the internal parts it is saving (like >> snapshot headers, manifest, etc ...) are safe ? >> >> Regards, >> Christian >> >> Am Dienstag, 30. September 2014 13:00:59 UTC+2 schrieb Akka Team: >>> >>> Hi Christian, >>> >>> Are you using Java serialization to save Scala objects? Please note that >>> these Scala versions are not binary compatible, not even on the >>> serialization level. It is highly recommended to use a proper serialization >>> format when using persistence (protobuf, Thrift, etc.) that support >>> forward-backward compatibility and a stable binary format irregardless of >>> the platform. >>> >>> -Endre >>> >>> On Mon, Sep 29, 2014 at 8:42 AM, Christian Kitzmueller < >>> [email protected]> wrote: >>> >>>> Hi, >>>> >>>> we are currently using akka 2.3.6 and checking for migration from scala >>>> 2.10.4 to 2.11.2. When I tried an update to scala 2.11.2, I noticed >>>> following things: >>>> >>>> When I start my application (using a local leveldb) I cannot reload >>>> Snapshots - I get the following exception: >>>> >>>> 08:12:08.232 ERROR [akka.tcp://[email protected]: >>>> 3552/system/snapshot-store] Error loading snapshot >>>> [SnapshotMetadata(xxxx,3,1411970788025)] >>>> java.io.InvalidClassException: scala.Option; local class incompatible: >>>> stream classdesc serialVersionUID = -2062608324514658839, local class >>>> serialVersionUID = >>>> -114498752079829388 >>>> >>>> I have a similar issue with the akka-persistence-mongo-casbah journal: >>>> >>>> 07:43:03.534 ERROR [akka.tcp://[email protected]: >>>> 3552/system/snapshot-store] error loading snapshot { "_id" : { "$oid" >>>> : "5428f1275fe8f19e6086ec8c"} >>>> , "persistenceId" : "xxxxxx" , "sequenceNr" : 0 , "timestamp" : >>>> 1411969319306 , "snapshot" : <Binary Data>} >>>> java.io.InvalidClassException: akka.persistence.SelectedSnapshot; >>>> local class incompatible: stream classdesc serialVersionUID = >>>> -7413351535605152403, local clas >>>> s serialVersionUID = -8204699298693905400 >>>> at java.io.ObjectStreamClass.initNonProxy(Unknown Source) >>>> ~[na:1.7.0_45] >>>> >>>> I guess the only workaround for this would be touching the serializers? >>>> >>>> Regards, >>>> Christian >>>> >>>> -- >>>> >>>>>>>>>> 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 [email protected]. >>>> To post to this group, send email to [email protected]. >>>> 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 [email protected]. > To post to this group, send email to [email protected]. > 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. 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