[jboss-user] [JBossCache] - Re: Strange ClassCastException in OptimisticCreateIfNotExist

[spennec]

Manik,

The localMode variable is not always set to 'true'.

When I load the cache at startup-time, both members of the cluster fill their cache based on the data that is in the database. The both fill their cache in local mode, so that one does not invalidate the other's data.

Once the app is loaded, when some data is invalidated, then the localMode variable is set to false, meaning that any invalidation or 'put' operation results in a replication.

Is that behaviour correct? It seems logical to me, but I might be wrong.

To answer your question: the CCE only occurs when replication is happening.

Also, I've tested something new, that is replicating a lower amount of data.

The data that is being cached are two big maps, typed like this:



  | SortedMap<String, List<CachedData>>
  | and
  | SortedMap<String, CachedData>
  | 

The are put in two nodes, each under one key. That is: 

- Node1 - Key1 - Map1.
- Node2 - Key2 - Map2.

If I make the maps smaller in size (say, 10'000 CachedData objects), everything goes fine.

If I fill them with the whole amount of data that I need to cache (around 140'000 objects), then the CCE occurs.

I tried to make the map size intermediate, around 50'000 and the CCE occured, too.

Could it be that the size of the object (i.e. the SortedMap) that is being cached provokes the CCE?? Or am I doing things badly, and unconsciously provoking the CCE?

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