On 24 January 2017 at 06:57, Michael Paquier <michael.paquier@gmail.com> wrote:
> On Mon, Jan 23, 2017 at 8:32 PM, Alexander Shchapov
> <alexanderad@gmail.com> wrote:
>> There are 7 stages for standard VACUUM process which is reportable via
>> this view. For time consuming stages like "scanning heap" or
>> "vacuuming heap" you are able to get stage progress idea by doing:
>>
>> (heap_blks_scanned | heap_blks_vacuumed) / heap_blks_total * 100%
>>
>> However stage "vacuuming indexes" does not give any idea of how long
>> this stage might take. We have some rather big (500M+ records) with
>> 5-7 indexes. Sometimes it takes us 20 hours+ to get table vacuumed and
>> all progress reporting we have for stage 3 is that it is stage 3.
>
> Yes, things could be improved here.
Yes, it seems that VACUUM progress reporting feature is only about 40% complete.
--
Simon Riggs http://www.2ndQuadrant.com/
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