On 15/12/2016 17:07, Sébastien Beausoleil wrote:
Hi, I have a big problem with one of my Postgresql server. I started a standard package update and during the Postgresql update, something happen that it make it fails. Since when, postgresql isn't able to start. In the log, here is what it is showed:
What postgresql update ?
2016-12-15 08:40:03 EST FATAL: "/var/lib/postgresql/9.3/main" is not a valid data directory 2016-12-15 08:40:03 EST DETAIL: File "/var/lib/postgresql/9.3/main/PG_VERSION" is missing. And if I go further, there is a reccuring message: 2016-12-14 22:01:14 EST FATAL: could not open relation mapping file "global/pg_filenode.map": No such file or directory 2016-12-14 22:01:15 EST ERROR: could not open file "base/305852/11848": No such file or directory 2016-12-14 22:01:15 EST CONTEXT: writing block 0 of relation base/305852/11848 2016-12-14 22:01:15 EST WARNING: could not write block 0 of base/305852/11848 2016-12-14 22:01:15 EST DETAIL: Multiple failures --- write error might be permanent. I notice, when comparing with a similare server, that 3 db data in the main/base folder are empty, I suppose it's the postgres, template0 et template1 database.
That's pretty bad. Can you locate them anywhere else in your file system?
I try pg_resetxlog on a copy of the data dir, the server came up but the "postgres" user isn't a valide role... I had a cron which make dump backup each day but there was un bug in the script that make it right, so I know we should not rely on recovery, but by now, It s really my only hope.
Do you take any file system backup by pg_start_backup/pg_stop_backup ? or pg_basebackup? or WAL archiving?
Could someone help me? Sebastien OS: Ubuntu Server 14.04 64bit Postgresql: 9.3
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