[Bucardo-general] Increasingly delayed target update
Enrique
eps.lab at protonmail.com
Fri Jan 18 13:22:46 UTC 2019
Hi again list.
I dropped all DBs and started all over.
The issue is no longer reproducing, I'll assume it was my mistake and report
should I experience such issues again.
Cheers and happy weekend!
Enrique
‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Tuesday, January 15, 2019 4:58 PM, Enrique <eps.lab at protonmail.com> wrote:
> Hello, list.
>
> I'm beginning to use Bucardo and I made a quick and dirty test:
>
> - Databases test1 (locaslhost) and test2 (different host) created with pgbench.
> - Sync "sync01" Relgroup "alpha" DB group "sync01" test1:source test2:target
> - pgbench -c 5 -j 5 -t $VERYVERYLARGENUMBER test1
>
> I noticed a very fast update rate in test2, but then the more tests I ran, the
> slower it was to show updates in test2 (most time spent 'counting all deltas').
> I recorded the "time to run" from bucardo status sync01 each 10 seconds, and
> here is a graph of what I obtained:
>
> https://ibin.co/4TbrRIoOszRf.png
>
> That's for the first hour or so, then it kept climbing until there was no space
> left on the drive.
>
> I have these questions:
>
> - Is there anything I should specifically take into account beforehand so a kind
> of purge is done? 'bucardo purge all' used to return 0 rows deleted. The count
> in the delta tables was very large, as expected.
>
> - How can I prevent the delta tables to grow indefinitely?
> - Is there anything I'm missing completely? :D
> - I didn't find much updated information in the website docs. How can I help?
>
> Thank you so much beforehand :)
>
> Best regards.
>
> Enrique
>
>
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