msm-session-manager and kryo as serialization strategy

[User 123]

Hi

I would like use msm-session-manager and kryo as serialization strategy.

I use tomcat7, java 8 and following libs:

tomcat/lib:

spymemcached-2.11.1.jar

memcached-session-manager-1.8.3.jar

memcached-session-manager-tc7-1.8.3.jar

WEB-INF/lib:

asm-3.2.jar

kryo-1.04.jar

kryo-serializers-0.11.jar

minlog-1.2.jar

reflectasm-1.01.jar

msm-kryo-serializer-1.8.3.jar

In case of deserialization I get following error and die session will be purged:

WARNUNG: Could not deserialize session with id 97EEBA4851DAE5BE3EBD2CC4D9ED94F8 from memcached, session will be purged from storage.

de.javakaffee.web.msm.TranscoderDeserializationException: com.esotericsoftware.kryo.SerializationException: Unable to deserialize object of type: java.util.concurrent.ConcurrentHashMap

        at de.javakaffee.web.msm.serializer.kryo.KryoTranscoder.deserializeAttributes(KryoTranscoder.java:291)

        at de.javakaffee.web.msm.TranscoderService.deserializeAttributes(TranscoderService.java:171)

        at de.javakaffee.web.msm.TranscoderService.deserialize(TranscoderService.java:128)

        at de.javakaffee.web.msm.MemcachedSessionService.loadFromMemcached(MemcachedSessionService.java:1100)

        at de.javakaffee.web.msm.MemcachedSessionService.findSession(MemcachedSessionService.java:585)

        at de.javakaffee.web.msm.MemcachedBackupSessionManager.findSession(MemcachedBackupSessionManager.java:216)

        at org.apache.catalina.connector.Request.doGetSession(Request.java:2900)

        at org.apache.catalina.connector.Request.getSessionInternal(Request.java:2518)

        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:427)

        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)

        at de.javakaffee.web.msm.RequestTrackingHostValve.invoke(RequestTrackingHostValve.java:156)

        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)

        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)

        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)

        at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200)

        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)

        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

        at java.lang.Thread.run(Thread.java:745)

Caused by: com.esotericsoftware.kryo.SerializationException: Unable to deserialize object of type: java.util.concurrent.ConcurrentHashMap

        at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:593)

        at com.esotericsoftware.kryo.ObjectBuffer.readObject(ObjectBuffer.java:213)

        at de.javakaffee.web.msm.serializer.kryo.KryoTranscoder.deserializeAttributes(KryoTranscoder.java:289)

        ... 20 more

Caused by: com.esotericsoftware.kryo.SerializationException: Unable to deserialize object of type: xxx

        at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:571)

        at com.esotericsoftware.kryo.serialize.MapSerializer.readObjectData(MapSerializer.java:129)

        at com.esotericsoftware.kryo.Serializer.readObject(Serializer.java:61)

        at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:589)

        ... 22 more

Caused by: com.esotericsoftware.kryo.SerializationException: Unable to deserialize object of type: yyy

Serialization trace:

directory (yyy)

        at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:571)

        at com.esotericsoftware.kryo.serialize.MapSerializer.readObjectData(MapSerializer.java:129)

        at com.esotericsoftware.kryo.serialize.FieldSerializer.readObjectData(FieldSerializer.java:220)

        at com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.readObjectData(ReferenceFieldSerializer.java:81)

        at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:566)

        ... 25 more

Caused by: com.esotericsoftware.kryo.SerializationException: Unable to deserialize object of type: xxx

Serialization trace:

attributes (yyy)

        at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:571)

        at com.esotericsoftware.kryo.serialize.MapSerializer.readObjectData(MapSerializer.java:129)

        at com.esotericsoftware.kryo.serialize.FieldSerializer.readObjectData(FieldSerializer.java:220)

        at com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.readObjectData(ReferenceFieldSerializer.java:81)

        at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:566)

        ... 29 more

Caused by: com.esotericsoftware.kryo.SerializationException: Unable to find class: xxx.lazyloaders.LazyLoadersServiceImpl$$Lambda$94/516742316

Serialization trace:

adAddressBeanLazyLoader (zzz)

lazyLoaders (zzz)

currentInstance (zzz)

        at com.esotericsoftware.kryo.Kryo.readClass(Kryo.java:449)

        at com.esotericsoftware.kryo.serialize.FieldSerializer.readObjectData(FieldSerializer.java:214)

        at com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.readObjectData(ReferenceFieldSerializer.java:81)

        at com.esotericsoftware.kryo.serialize.FieldSerializer.readObjectData(FieldSerializer.java:220)

        at com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.readObjectData(ReferenceFieldSerializer.java:81)

        at com.esotericsoftware.kryo.serialize.FieldSerializer.readObjectData(FieldSerializer.java:220)

        at com.esotericsoftware.kryo.serialize.ReferenceFieldSerializer.readObjectData(ReferenceFieldSerializer.java:81)

        at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:566)

        ... 33 more

Caused by: java.lang.ClassNotFoundException: xxx.lazyloaders.LazyLoadersServiceImpl$$Lambda$94/516742316

        at java.lang.Class.forName0(Native Method)

        at java.lang.Class.forName(Class.java:340)

        at com.esotericsoftware.kryo.Kryo.readClass(Kryo.java:447)

        ... 40 more

Any ideas whats my problem with this configuration?

Can I use the latest version of kryo V2+ (actually 3.0.2). What are the dependencies and versions I need? How looks the context.xml - I want to use the fast msm-kryo-serializer? It was not possible to me to get this version to run in my configuration.

Hope somebody can help me to solve my problem.

best regards

[Martin Grotzke]

I'm sorry, but msm does not yet support kryo 3, see also https://code.google.com/p/memcached-session-manager/issues/detail?id=213

Perhaps I find time for it the next weeks for this.

Cheers,
Martin

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[Martin Grotzke]

Hi,

I just pushed a release candidate of memcached-session-manager with kryo
3 support. I'd be happy if you could test it and give feedback on the
msm mailing list, please check the related announcement there:
https://groups.google.com/d/msg/memcached-session-manager/frIakVdjpV8/LqfrLNqVjTQJ

Cheers,
Martin

On 06/20/2015 12:27 AM, Martin Grotzke wrote:
> I'm sorry, but msm does not yet support kryo 3, see also
> https://code.google.com/p/memcached-session-manager/issues/detail?id=213
>
> Perhaps I find time for it the next weeks for this.
>
> Cheers,
> Martin
>
> Am 19.06.2015 12:02 schrieb "User 123" <12345rai...@gmail.com

> <mailto:12345rai...@gmail.com>>:

> <mailto:kryo-users+...@googlegroups.com>.

> For more options, visit https://groups.google.com/d/optout.
>

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