Maintain connection_count atomically

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Removed LOCK_connection_count.

Removed duplicate denied_connections and connection_errors_max_connection
increment from create_new_thread(). Another increment done by
CONNECT::close_with_error().

Simplified away CONNECT::thread_count_incremented. Now close_with_error()
is always called with connection_count incremented.

Part of MDEV-19515 - Improve connect speed

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This commit is contained in:

Sergey Vojtovich

2019-05-19 17:00:31 +04:00

parent 0bee021b78

commit a61baa7a25

21 changed files with 31 additions and 1628 deletions

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206

mysql-test/suite/perfschema/r/event_aggregate_no_u.result

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