From: Pepe TD Vo <pepevo@yahoo.com>
To: Pgsql-admin <pgsql-admin@postgresql.org>
To: PgAdmin Support List <pgadmin-support@lists.postgresql.org>
Subject: backup script error with could not connect to database
Date: Wed, 18 Dec 2019 18:55:26 +0000 (UTC)
Message-ID: <280013024.631417.1576695326572@mail.yahoo.com> (raw)
References: <280013024.631417.1576695326572.ref@mail.yahoo.com>
hello expert,
I had to do a backup on replication master-slave servers. I also have asked this question before, but I don't understand why I followed the information and same scripting to run on the replication servers and didn't work. I can run pg_dumpall successful but not with the script. Would you please tell me what's wrong and what need to correct the error?
my replication server (master) pg_hba.conf
# "local" is for Unix domain socket connections onlylocal all all peerhost all all 192.168.2.0/24 trust# IPv4 local connections:host all all 127.0.0.1/32 indentlocal all postgres trusthost all power_user 0.0.0.0/0 md5host all other_user 0.0.0.0/0 md5
host all storageLoader 0.0.0.0/0 md5
# IPv6 local connections:host all all ::1/128 indent#allow replication connections from localhost, by a user with the replication priviledgelocal replication all trusthost replication all 127.0.0.1/32 trusthost replicaiton all ::1/128 trusthost replication replicauser masterIP/32 trusthost replicaiton replicauser slaveIP/32 trust
from the postgres prompt I can connect to each database
#psql -d template0 -U postgres
template0-#
#psql -d template1 -U postgres
template1-#
#psql -d pscidr -U postgres
pscidr-#
#psql -d postgres -U postgres
postgres-#
when I run the script as postgres os, I don't see the error but the only global.sql backup but nothing in it, 0 byte (blank) sql script.
when I run as root su -c postgres /path/pg_backup.sh > pgbackup.log, I get below:
Performing globals backup:Globals backuppg_dumpall: could not connect to database "template1":FATAL: Ident authentication failed for user "postgres" fro globals backup.
Performing schema-only backup:psql:FATAL: Ident authentication failed for user "postgres"the following databases were matched for schema-only backup:
performing full backup:psql:FATAL: Ident authentication failed for user "postgres"
I can run pg_dumpall > postgresdump.sql as postgres user os fine will all the databases backup
pg_backup.sh and pg_backup.config attachment.
v/r,
Bach-Nga
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Attachments:
pg_backup_config-pg_backup.docx (application/vnd.openxmlformats-officedocument.wordprocessingml.document, 22.3K) download
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Cc: pepevo@yahoo.com, pgadmin-support@lists.postgresql.org
Subject: Re: backup script error with could not connect to database
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