I have an instance of sas 9.1 with connection pooling, oracle thin client. Under load, the app server locks up. By that, I mean that no JSP can be run from that point on, and I cant even access the web admin. I cant even do a proper shutdown from asadmin stop-domain.
I do have connection pool leak detection and reclaim enabled (new to 9.1). But I dont even reach the max connections that it'll lock up, at which point I am blind. I cant refer to the monitor since everything is locked. So I figured this should be an ideal task for dtrace, right? except I'm not sure where to start. This is java and all, whereas usually my dtracing is c or c++ apps, and most of the time, I wrote them, so it helps. I'm a little lost as to how the internals of SAS work, and how to use dtrace in that context. Anybody has done anything like that? Francois
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