So, my environment stands as such:

7 servers, 7 clusters, and 17 CF instances.  Half have been migrated to CF7, 
the other half are on CF6 (destined to be migrated shortly). The clusters all 
use J2EE sessions for failover. 

I'm having issues in one of the CF7 clusters.  Due to limitations with our 
networking setup (no multicast allowed across subnets), I've been limited to 
just one clustered instance of CF for 50+ applications.  This is being 
addressed tomorrow (yay!), but it's been delayed due to issues with policy, 
rules, etc.  

I've finally gotten licenses and permission to install FusionReactor, and I put 
it in place on all servers this past weekend.  I also took the liberty of 
installing the JDBC wrapper provided by FusionReactor to get a better idea of 
what our... uh, "intensive" apps are doing.  I noticed a HUGE spike in memory 
usage today, and when I checked, one of our apps had taken 40 seconds to 
complete its request, of which 21 seconds were strictly database related, and 
used several hundred megs of memory.  The result set returned was over 100k 
records.  I'm not sure if this got loaded into a shared memory scope, but it 
might explain why session replication is failing constantly.

So, does anyone have a "Best Practice" for the amount of results that should be 
returned into a shared environment?  I'm thinking at this point that there is 
very little need to work with more than 1000 records at a given time (at least 
within ColdFusion... if data manipulation is required, that's why stored 
procedures and functions exist in Oracle).  Now, with the datasource wrapper 
within the FusionReactor JDBC calls, I CAN limit the amount of information 
received by ColdFusion.  I just need to get another set of eyes on this before 
I present it as a policy change.

Matthew Williams

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