[pgsql-ru-general] deadlock при drop index concurrently - Mailing list pgsql-ru-general

From Вавржин Игорь
Subject [pgsql-ru-general] deadlock при drop index concurrently
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Msg-id CAHGBwKi2zPt1=6gsYaFArYXnBDZ4cobjg_OLtZu4h4f=aTix5A@mail.gmail.com
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Responses [pgsql-ru-general] Re: [pgsql-ru-general] deadlock при drop index concurrently  (Dmitry Igrishin <dmitigr@gmail.com>)
List pgsql-ru-general
Вот что видим в логах:

Mar 23 15:45:07 mdb postgres[26481]: [177-1] user=pgsql,db=geo,client=10.77.255.13 ERROR:  deadlock detected
Mar 23 15:45:07 mdb postgres[26481]: [177-2] user=pgsql,db=geo,client=10.77.255.13 DETAIL:  Process 26481 waits for ShareLock on virtual transaction 8/29343079; blocked by process 15087.
Mar 23 15:45:07 mdb postgres[26481]: [177-3]        Process 15087 waits for AccessExclusiveLock on relation 24694 of database 17701; blocked by process 26481.
Mar 23 15:45:07 mdb postgres[26481]: [177-4]        Process 26481: DROP INDEX CONCURRENTLY IF EXISTS geo_11_2gis_get_route_platform_ids_from_json
Mar 23 15:45:07 mdb postgres[26481]: [177-5]        
Mar 23 15:45:07 mdb postgres[26481]: [177-6]        Process 15087: LOCK TABLE geo_11 IN ACCESS EXCLUSIVE MODE
Mar 23 15:45:07 mdb postgres[26481]: [177-7] user=pgsql,db=geo,client=10.77.255.13 HINT:  See server log for query details.
Mar 23 15:45:07 mdb postgres[26481]: [177-8] user=pgsql,db=geo,client=10.77.255.13 STATEMENT:  DROP INDEX CONCURRENTLY IF EXISTS geo_11_2gis_get_route_platform_ids_from_json
Mar 23 15:45:07 mdb postgres[26481]: [177-9]

кто-нибудь может объяснить откуда мог взяться при указании конкурентности дедлок?
версия postgres 9.4.4
--
С уважением,
Вавржин Игорь

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