47 lines
1.1 KiB
Bash
47 lines
1.1 KiB
Bash
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#!/bin/sh
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# check postgresql (streaming) replication
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# tested with postgresql 11.3 on FreeBSD 11.2
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#
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# pg_hba.conf access should be set to trust
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# warning (-w) and critical (-c) thresholds can be set in seconds
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# on a low trafic server don't hesitate to set them to a high value
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args=`getopt hw:c: $*`
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set -- $args
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warning=600
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critical=3600
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while :; do
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case "$1" in
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-h) echo "Usage $0: [-h] [-w warning (default: $warning)] [-c critical (default: $critical)]"
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shift;
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exit 2;
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;;
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-w) warning=$2
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shift; shift;
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;;
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-c) critical=$2
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shift; shift;
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;;
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--)
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shift; break;
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;;
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esac
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done
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delay=`/usr/local/bin/psql -U postgres --pset expanded=yes -c "select now() - pg_last_xact_replay_timestamp() AS replication_delay;" | tail -2 | head -1 | cut -d '|' -f 2 | cut -d ' ' -f 2 | cut -d '.' -f 1 | awk -F: '{ print ($1 * 3600) + ($2 * 60) + $3 }'`
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if [ $delay -gt $critical ]
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then
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echo "CRITICAL: $delay seconds behind master"
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exit 2
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elif [ $delay -gt $warning ]
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then
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echo "WARNING: $delay seconds behind master"
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exit 1
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else
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echo "OK: $delay seconds behind master"
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exit 0
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fi
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