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Issue 4598 - Copy attribute syntax hashtables to each worker thread #5693

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Issue 4598 - Copy attribute syntax hashtables to each worker thread #5693

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Commits on Apr 5, 2023

  1. Issue 4598 - Copy attribute syntax hashtables to each worker thread 

    Description:

There is a lot of contention around the rwlocks for the attribute
syntax hashtables.  Since syntaxes rarely change we can just keep a
copy in each thread and avoid locking.

Then the worker can check for changes on each loop and rebuild
the hashtables as needed.

Did some code cleanup in schema.c

relates: 389ds#4598

Reviewed by: progier(Thanks!)
    @mreynolds389
    mreynolds389 committed Apr 5, 2023
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