e84e06d2b3
The previous value of 5s is inadequate for the buildfarm's CLOBBER_CACHE_ALWAYS animals: they take long enough to do the is-it-waiting queries that the timeout expires, allowing the database state to change, before isolationtester is done looking. Perhaps 10s will be enough. (If it isn't, I'm inclined to reduce the number of sessions involved.)
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