[Jradius] EhCache and RadiusSession serializations

[Miroslav Genov]

Hello,
I'm using the latest (trunk) version of JRadius and I'm encountering strange
issue with ehcache's diskstore. I made a small fix in the code which is
allowing me to use a custom configuration of ehcache (spring injection), so
my sessions configuration is looking like:

<?xml version="1.0" encoding="UTF-8"?>
<ehcache>

    <!-- store disk cache in default java tmp dir -->
    <diskStore path="java.io.tmpdir"/>

    <!-- define a default cache. -->
    <defaultCache
        maxElementsInMemory="1000"
        eternal="false"
        timeToIdleSeconds="30"
        timeToLiveSeconds="5"
        overflowToDisk="true"
        diskPersistent="true"
        diskExpiryThreadIntervalSeconds="120" />

</ehcache>

The problem is occurring when ehcache is trying to store all new elements in
the temp folder. Here is the error which I'm getting:

java.io.NotSerializableException: net.jradius.freeradius.FreeRadiusListener
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
~[na:1.6.0_20]
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
~[na:1.6.0_20]
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
~[na:1.6.0_20]
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
~[na:1.6.0_20]
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
~[na:1.6.0_20]
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
~[na:1.6.0_20]
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
~[na:1.6.0_20]
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
~[na:1.6.0_20]
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
~[na:1.6.0_20]
at
java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
~[na:1.6.0_20]
at
java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:416)
~[na:1.6.0_20]
at net.sf.ehcache.Element.writeObject(Element.java:787) ~[auth.jar:na]
at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source) ~[na:na]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
~[na:1.6.0_20]
at java.lang.reflect.Method.invoke(Method.java:597) ~[na:1.6.0_20]
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
~[na:1.6.0_20]
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
~[na:1.6.0_20]
at
java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
~[na:1.6.0_20]
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
~[na:1.6.0_20]

Just was wondering whether JRadius could handle ~3k accounting sessions
without using of all available memory (2GB per process) and if it's not
possible, how can I use serialization to store some of the session objects
on the file system ?


-- 
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