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Re: WIP: Avoid creation of the free space map for small tables - Mailing list pgsql-hackers

From John Naylor
Subject Re: WIP: Avoid creation of the free space map for small tables
Date
Msg-id CACPNZCtemd=ctF9+9P_WV33yXE9WOPu2EJcqgXrY4YwHoeVpuw@mail.gmail.com
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In response to Re: WIP: Avoid creation of the free space map for small tables  (Amit Kapila <amit.kapila16@gmail.com>)
Responses Re: WIP: Avoid creation of the free space map for small tables  (Amit Kapila <amit.kapila16@gmail.com>)
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On Tue, Jan 29, 2019 at 11:56 AM Amit Kapila <amit.kapila16@gmail.com> wrote:

> You can find this change in attached patch.  Then, I ran the make
> check in src/bin/pgbench multiple times using test_conc_insert.sh.
> You can vary the number of times the test should run, if you are not
> able to reproduce it with this.
>
> The attached patch (clear_local_map_if_exists_1.patch) atop the main
> patch fixes the issue for me.  Kindly verify the same.

I got one failure in 50 runs. With the new patch, I didn't get any
failures in 300 runs.


-- 
John Naylor                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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