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<p style="margin: 10px 0 0 0">That wasn't how the code behaved when it was broken. The race was fixed by leaving the locking up to the database. If the database is not operating effectively, that can hang clients (though Oracle tends not to do that as much). I don't see any reason based on this to conclude anything but that the database was hung up. It would require experimenting with drivers, pooling settings, etc. if it's reproducible, but it would only be something a local system could deal with.</p>
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