Re: Fwd: Postgresql Data corruption

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От Adrian Klaver
Тема Re: Fwd: Postgresql Data corruption
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Msg-id 156c0845-c365-b0eb-88ac-59f72c36b697@aklaver.com
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Ответ на Fwd: Postgresql Data corruption  (Tulqin Navruzov <tulqin.navruzov@finnetlimited.com>)
Ответы Re: Fwd: Postgresql Data corruption
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On 1/14/20 12:44 PM, Tulqin Navruzov wrote:
> 
> 
> Hi team
> 
> Could you help us to sort this out please?
> 
> We had some hardware problems with Datacenter and could not using 
> postgresql from restored snapshots it showing "Structure needs to be 
> cleaning " during startup
> , on centos7 did xfs_repair and postgresql started successfully. But 
> could not select datas from it . showing below message .
> 
> This is when want to login to db with postgres user .
> psql: PANIC:  could not open critical system index 2662
> 
> but can logged in with another user and trying to select from some 
> tables , showing this message :
> 
> ERROR:  catalog is missing 11 attribute(s) for relid 113971
> 
> Could you help us to solve this problem? or could you give contact who 
> can help with this?

Do you have space to back up the $DATADIR or do you have a recent backup?

Asking because that would be helpful before you try the below.

I would take a look at:
https://www.postgresql.org/docs/12/sql-reindex.html

In section:

Notes

...

Things are more difficult if you need to recover from corruption of an 
index on a system table. ...

For more information on single-user mode:

https://www.postgresql.org/docs/12/app-postgres.html#APP-POSTGRES-SINGLE-USER

> 
> Thanks in advance.


-- 
Adrian Klaver
adrian.klaver@aklaver.com



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