We have two problems with clustering our CF 8.01 Multiserver (i.e. JRun) installs.
1) Session replication is broken. When we turn off an instance in a cluster that has session replication and stickiness turned on, the next server that gets the request throws a null pointer error when trying to run Application.cfc to establish the session. We've confirmed this by clearing the session cookies on the browser; this enables the server to respond correctly as it can then set up its own session. Turning off session replication makes this go away. Any ideas what might be wrong with our setup to cause session replication to fail? 2) Half way through yesterday, our clustering started to fail. Up until now all the servers have behaved properly, all joining the cluster correctly. Now, servers will drop out of the cluster for no reason, only to re-join later on. They intermittently drop in and out of the cluster. The most interesting part is that when they drop out, they do it in pairs. Each pair of servers in the same datacentre stay clustered; they seem to lose the connection with the servers in the other datacentre (we have four servers, two in each datacentre, all on the same VLAN subnet). I've tried adding the servers as unicast peers rather than letting the multicast discovery find them, but it didn't help. If anyone has ideas about how best to monitor the connections between the servers and get an idea of why the servers are dropping out of the cluster, please let me know. mxAjax / CFAjax docs and other useful articles: http://www.bifrost.com.au/blog/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;207172674;29440083;f Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:313375 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
