Looks like my email didn't match the right thread:
https://www.postgresql.org/message-id/flat/CAMAYy4%2Bw3NTBM5JLWFi8twhWK4%3Dk_5L4nV5%2BbYDSPu8r4b97Zg%40mail.gmail.com
Any chance to get some feedback on this?
--
regards,
Jakub Glapa
On Tue, Nov 13, 2018 at 2:08 PM Jakub Glapa <jakub.gl...@gmail.com> wrote:
> Hi, I'm also experiencing the problem: dsa_allocate could not find 7 free
> pages CONTEXT: parallel worker
>
> I'm running: PostgreSQL 10.5 (Ubuntu 10.5-1.pgdg16.04+1) on
> x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 5.4.0-6ubuntu1~16.04.10) 5.4.0
> 20160609, 64-bit
>
> query plan: (select statement over parent table to many partitions):
> select ...
> from fa
> where c_id in (<ID_LIST>) and
> datetime >= '2018/01/01'
> and ((dims ? 'p' and dims ? 'mcp')
> or (datasource in (FA', 'GA')))
> and not datasource = 'm'
> GROUP BY datasource, dims ->'ct', dims ->'mcp', dims -> 'p', dims -> 'sp':
>
> Finalize GroupAggregate (cost=31514757.77..31519357.77 rows=40000 width=223)
> Group Key: fa.datasource, ((fa.dims -> 'ct'::text)), ((fa.dims ->
> 'mcp'::text)), ((fa.dims -> 'p'::text)), ((fa.dims -> 'sp'::text))
> -> Sort (cost=31514757.77..31515057.77 rows=120000 width=223)
> Sort Key: fa.datasource, ((fa.dims -> 'ct'::text)), ((fa.dims ->
> 'mcp'::text)), ((fa.dims -> 'p'::text)), ((fa.dims -> 'sp'::text))
> -> Gather (cost=31491634.17..31504634.17 rows=120000 width=223)
> Workers Planned: 3
> -> Partial HashAggregate (cost=31490634.17..31491634.17
> rows=40000 width=223)
> Group Key: fa.datasource, (fa.dims -> 'ct'::text),
> (fa.dims -> 'mcp'::text), (fa.dims -> 'p'::text), (fa.dims -> 'sp'::text)
> -> Result (cost=0.00..31364713.39 rows=5596479
> width=175)
> -> Append (cost=0.00..31252783.81 rows=5596479
> width=659)
> -> Parallel Seq Scan on fa
> (cost=0.00..0.00 rows=1 width=580)
> Filter: ((datetime >= '2018-01-01
> 00:00:00+01'::timestamp with time zone) AND ((datasource)::text <> 'M'::text)
> AND (((dims ? 'p'::text) AND (dims ? 'mcp'::text)) OR ((datasource)::text =
> ANY ('{"FA","GA"}'::text[]))) AND (c_id = ANY ('{<ID_LIST>}'::bigint[])))
> -> Parallel Bitmap Heap Scan on fa_10
> (cost=1226.36..53641.49 rows=1 width=1290)
> Recheck Cond: (datetime >= '2018-01-01
> 00:00:00+01'::timestamp with time zone)
> Filter: (((datasource)::text <>
> 'M'::text) AND (((dims ? 'p'::text) AND (dims ? 'mcp'::text)) OR
> ((datasource)::text = ANY ('<ID_LIST>'::bigint[])))
> -> Bitmap Index Scan on
> fa_10_rangestart (cost=0.00..1226.36 rows=32259 width=0)
> Index Cond: (datetime >=
> '2018-01-01 00:00:00+01'::timestamp with time zone)
> -> Parallel Seq Scan on fa_105
> (cost=0.00..11.99 rows=1 width=580)
> Filter: ((datetime >= '2018-01-01
> 00:00:00+01'::timestamp with time zone) AND ((datasource)::text <> 'M'::text)
> AND (((dims ? 'p'::text) AND (dims ? 'mcp'::text)) OR ((datasource)::text =
> ANY ('{"FA","GA"}'::text[]))) AND (c_id = ANY ('<ID_LIST>'::bigint[])))
> -> Parallel Seq Scan on fa_106
> (cost=0.00..11.99 rows=1 width=580)
> Filter: ((datetime >= '2018-01-01
> 00:00:00+01'::timestamp with time zone) AND ((datasource)::text <> 'M'::text)
> AND (((dims ? 'p'::text) AND (dims ? 'mcp'::text)) OR ((datasource)::text =
> ANY ('{"FA","GA"}'::text[]))) AND (c_id = ANY ('<ID_LIST>..........
>
>
>
> --
> regards,
> Jakub Glapa
>
