Hallo John,

JR>I'm thinking that the kernel TCP connection queues are filling up and 
JR>further requsts are getting dropped, but at 20? 

Did you check ulimit (file handles)?

Did you try 'lsof | grep TCP'? Maybe it shows thousands of "zombie" TCP/IP
connections.

Which JDBC driver are you using? The msql driver is (AFAIK) unbelievable slow
since it creates (and immediately destroys) at lease one new thread for each
*row* read. By your description, JDBC seems not to be the problem, but you may
want to check anyway.

MbG, Ekkehard


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