Max locks

Hello all,

I have a system which is giving me the log hint to increase
max_locks_per_transaction. This is somewhat expected due to the workload -
but what I can't understand is the numbers:

Based on the docs I calculate my theoretical max locks as:

max_locks_per_transaction * (max_connections + max_prepared_transactions)
256 * (600 + 0) = *153600*

However, looking at my Prometheus monitoring (polling every 15s) which does
a SELECT from pg_locks and groups by mode I can see there are over 500K
AccessShareLocks consistently (up to around 570K at peak).

How is this possible???

Cheers,

James Sewell,

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