Add README file
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README
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Nagios plugin to check Postgres Streaming replication
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=====================================================
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This script could be used as Nagios check plugin to verify Postgres Streaming
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replication state.
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This script :
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- check if Postgres is running (CRITICAL raise if not)
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- check if Postgres is in recovery mode :
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- if Postgres is in recovery mode :
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- retreive from Postgres the last xlog file receive and the xlog file replay
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- check if Postgres recovery configuration file is NOT present (CRITICAL
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raise if present)
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- retreive master connection informations from Postgres recovery configuration
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file (UNKNOWN raise on error). Default Postgres master TCP port will be used
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if port is not specify.
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- retreive current xlog file from Postgres master server (UNKNOWN raise on error).
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- check if the last receive xlog file is the last replay xlog file (WARNING raise if not)
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- Return OK state
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- if Postgres is not in recovery mode :
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- check if Postgres recovery configuration file is present (CRITICAL raise if present)
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- check if stand-by client(s) is connected (WARNING raise if not)
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- Return OK state with list and count of stand-by client(s)
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Requirements
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------------
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* On master node :
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Slaves node must be able to connect with user PG_USER to database postgres as trust.
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* On standby node :
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PG_USER must be able to connect localy as trust
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Usage
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-----
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Usage : ./check_pg_streaming_replication [-h] [-d] [options]
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-u pg_user Specify Postgres user (Default : postgres)
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-b psql_bin Specify psql binary path (Default : /usr/bin/psql)
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-m pg_main Specify Postgres main directory path
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(Default : /var/lib/postgresql/9.1/main)
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-r recovery_conf Specify Postgres recovery configuration file path
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(Default : /var/lib/postgresql/9.1/main/recovery.conf)
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-p pg_port Specify default Postgres master TCP port (Default : 5432)
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-d Debug mode
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-h Show this message
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Copyright
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---------
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Copyright (c) 2013 Benjamin Renard
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License
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-------
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License version 2
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as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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