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FATAL: invalid page in block 0 of relation global/1262 - Mailing list pgsql-general

From Ibrahim Edib Kokdemir
Subject FATAL: invalid page in block 0 of relation global/1262
Date
Msg-id CABnTomKxVFk7mSkjwt-ahzd2g79NB2RbFeCPR_XhaPtU4BcirQ@mail.gmail.com
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Responses Re: FATAL: invalid page in block 0 of relation global/1262  (Luca Ferrari <fluca1978@gmail.com>)
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Hi, 
I upgraded my cluster from 9.6 to 11 with pg_upgrade hardlink parameter two days ago. Since then it has been working great as v11. Today while running heavy update queries on it, I got the  "FATAL:  invalid page in block 0 of relation global/1262" message and server crushed. 
Hard reset and trying to start, it start but shows the same error message and do not let me to connect. "psql: FATAL:  invalid page in block 0 of relation global/1262". I read that the filenode 1262 is for pg_database table. 

Any idea why did it happen and can it be recoverable?

Thanks. Regards.

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