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<p style="margin: 10px 0 0 0">If it was actually crashing, I was hoping to see any log output from shibd prior to the crash, but honestly unless it were set very high, it's not likely to show much. When you said it "crashed" did you literally mean shibd crashed? Now I'm thinking you just meant the app itself backlogged into an unusable state and had to be restarted. The IIS half doesn't actually talk to the database itself, so if shibd were still running but was just "stuck" waiting on locks, that isn't what I meant by crash.</p>
<p style="margin: 10px 0 0 0">Unless you're feeding it requests with the same NameID value over and over, the issue in 636 isn't your bug. If you are doing that, you'd need thousands of sessions with that value before it would make a substantial impact.</p>
<p style="margin: 10px 0 0 0">A bunch of new sessions should not generally need to update the same row, unless they did happen to have the same NameID in them, and a few dozen even from one user with the same NameID shouldn't really be noticeable. Of course if it's all just backlogged by constant table locks doing deletes, I'm sure that will be horrible, just trying to understand the scope of the problem.</p>
<p style="margin: 10px 0 0 0">I honestly never considered the obvious implications of every node running that thread, but it's clear in hindsight.</p>
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