Re: problems with access into system catalogs

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От Thomas Markus
Тема Re: problems with access into system catalogs
Дата
Msg-id 5011025B.7050003@proventis.net
обсуждение исходный текст
Ответ на Re: problems with access into system catalogs  (Craig Ringer <ringerc@ringerc.id.au>)
Ответы Re: problems with access into system catalogs  (Craig Ringer <ringerc@ringerc.id.au>)
Список pgsql-admin
Hi,

see below

Am 26.07.2012 10:25, schrieb Craig Ringer:
> First, thank-you for an excellent complete question with versions,
> EXPLAIN ANALYZE, and exact messages.
;)
>
> - Do you have any uncommitted two phase transactions?  Run:
>   SELECT * from pg_prepared_xacts ;
hm yes, i stopped all applications this morning but this query shows:
  transaction | gid                                              |
prepared            | owner  | database

-------------+----------------------------------------------------------------------------------------------+-------------------------------+--------+-----------
     49737548 |
131075_MS03ZjAwMDAwMTpjZmVlOjRlZDg3MTk2OjY4NGJlN2I=_N2YwMDAwMDE6Y2ZlZTo0ZWQ4NzE5Njo2ODRiZTdm
| 2012-01-05 07:49:30.78583+01  | xxx | db1
     49737549 |
131075_MS03ZjAwMDAwMTpjZmVlOjRlZDg3MTk2OjY4NGJlN2I=_N2YwMDAwMDE6Y2ZlZTo0ZWQ4NzE5Njo2ODRiZTg0
| 2012-01-05 07:49:30.789382+01 | xxx | db2

system time is valid (Thu Jul 26 10:38:12 CEST 2012). so may 1st is
really old
Should I restart the instance?

>
> - Do you have any long-lived 'IDLE IN TRANSACTION' connections ? Try:
>   SELECT * FROM pg_stat_activity WHERE current_query = '<IDLE> in
> transaction' AND xact_start > current_timestamp - '1 minute'::interval;
none, and there was a disconnect from all clients this morning
>
> Either of those can prevent vacuum from cleaning things up.
>
> Do you very frequently create and drop tables, indexes, etc? Say,
> using a database unit testing framework?
no, its a live system with normal olap access



Thomas

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