We have had several recent production issues with our SQL 2008 database where so many queries stacked up that we ran out of threads and sql was unresponsive. We are having a tough time diagnosing the issue since Idera could not connect. We couldn't tell via any of the views what led up to the issue. Any ideas here? We are on version 9.1. Are newer editions better? Also, we tried at one point turning on the query analyis feature but this at one point took down the sql server. Has anyone had luck with that in the newer versions?
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