"[EMAIL PROTECTED]" wrote : sync or async repl ? Can you describe this a bit more in detail ? I will do my best...
My application, for testing purposes, consists of a single client, an application instance, and a cache loader instance. The client talks to the application instance that fronts the cache, and the cache loader instance contains just the cache configured to utilize a cache loader. Replication between the cache instances happens asynchronously. The reason that the application instance and cache loader instance are seperate is the use of a cache loader on the application instance had a large impact to performance. The application uses two top-level nodes in the cache, one "/hash" node and one "/root" node. The /hash node's map contains a hash of all of the other locations contained as decendents of the /root node. I think that part of my problem is that as the /root tree grows, the map of the /hash node grows as well (and can get quite large). When using the Sleepycat cache loader, the CPU utilization of the cache loader instance is extremely high (90+%), and persistence of cache data (viewed by watching ReplicationInterceptor TRACE) lags way behind. If I use the File-based cache loader, the lag is greatly diminished and the CPU utilization is less, but the issue still remains. My question is related to how might I improve on this lag. Could I create a customized File-based cache loader so that it only writes the /hash node's changes periodically? Could I try to change my objects to externalizeable from serializeable? Cache-to-cache transient state transmission seems rather fast. Could I perdiodically use that method for persistence instead of the single changes captured by the cache loader? Any other thoughts or impressions? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3872899#3872899 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3872899 ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ JBoss-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jboss-user
