You're probably waiting on a lock from another process. Check pg_locks.
On 7 May 2013 11:38, Johann Spies <johann.sp...@gmail.com> wrote:
> I am running python scripts to read tag-formated files and put the data
> into tables.
>
> Sometimes a script (I am running several of them in parallel on a server)
> just hangs. That happened now again and when I checked I saw this:
>
> SELECT pg_stat_get_backend_pid(s.backendid) AS procpid,
> pg_stat_get_backend_activity(s.backendid) AS current_query FROM (SELECT
> pg_stat_get_backend_idset() AS backendid) AS s;
> procpid
> |
> current_query
>
>
> ---------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> 31697 | SELECT rkw_art_link.id, rkw_art_link.rart_id,
> rkw_art_link.kw_id FROM rkw_art_link WHERE ((rkw_art_link.kw_id =
> 'a9285811-8b14-421b-b7ee-2c0a7dc9c52c') AND (rkw_art_link.rart_id =
> '000182809000214')) ORDER BY rkw_art_link.id LIMIT 1 OFFSET 0;
> 32234 | INSERT INTO rkeywords(de,uuid) VALUES ('ANGIOTENSIN RECEPTOR
> BLOCKER','4b1c8ae2-d837-4d25-a32f-4891db267b9b');
> 30791 | INSERT INTO rkeywords(de,uuid) VALUES
> ('SYNCOPE','45044b9e-3cab-4f7b-83b9-f32cbed3cb24');
> 31799 | <IDLE> in transaction
> 16893 | <IDLE>
> 31624 | INSERT INTO rkeywords(de,uuid) VALUES ('DIASTOLIC
> FUNCTION','0c3633b4-05d1-4871-bbc1-b5e4c797e0db');
> 31884 | INSERT INTO rkeywords(de,uuid) VALUES
> ('MAPK','51b7d331-5652-4d05-9386-bc4e714b398d');
> 31715 | <IDLE> in transaction
> 31749 | <IDLE>
> 321 | SELECT pg_stat_get_backend_pid(s.backendid) AS procpid,
> pg_stat_get_backend_activity(s.backendid) AS current_query FROM (SELECT
> pg_stat_get_backend_idset() AS backendid) AS s;
> (10 rows)
>
> Number 31884 is the problem one. It just sits there everytime I run this
> query and it never seems to get completed.
>
> How do I find out what is the problem? And how do I 'push' it to carry on?
>
> Regards
> Johann
> --
> Because experiencing your loyal love is better than life itself,
> my lips will praise you. (Psalm 63:3)
>
--
If you can't see the forest for the trees,
Cut the trees and you'll see there is no forest.
