PS-9452 [8.4] fix unprivileged user login when threadpool is full #5616
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https://perconadev.atlassian.net/browse/PS-9452 This patch puts all new connections to the thread_group->high_prio_queue instead of normal priority queue to allow unprivileged user login when threadpool is full. Test added to teh 'percona' suite
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https://perconadev.atlassian.net/browse/PS-9452
This patch puts all new connections to the thread_group->high_prio_queue instead of normal priority queue to allow unprivileged user login when threadpool is full.