75 lines
2.6 KiB
Plaintext
75 lines
2.6 KiB
Plaintext
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#!/bin/bash
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#
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# plugin to monitor difference between st_last_event and st_last_received
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# in sl_status table (based on slony_ and slony_lag_)
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#
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# http://blog.endpoint.com/2009/07/slony-slstatus-and-diagnosing.html
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#
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# st_origin: the local slony system
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# st_received: the slony instance that sent an event
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# st_last_event: the sequence number of the last event received from that origin/received pair
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# st_last_event_ts: the timestamp on the last event received
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# st_last_received: the sequence number of the last sl_event + sl_confirm pair received
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# st_last_received_ts: the timestamp on the sl_confirm in that pair
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# st_last_received_event_ts: the timestamp on the sl_event in that pair
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# st_lag_num_events: difference between st_last_event and st_last_received
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# st_lag_time: difference between st_last_event_ts and st_last_received_ts
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#
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#
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# Configuration variables:
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#
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# PGHOST - Database server to use.
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# PGUSER - User to connect as.
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# PGPASSWORD - Password to use.
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# PGSCHEMA - Replication schema.
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#
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# Configuration example:
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#
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# munin-node:
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#
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# [slony*]
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# user slony
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# env.PGHOST localhost
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# env.PGUSER slony
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# env.PGPASSWORD password
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# env.PGSCHEMA _slony
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#
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# postgresql.conf:
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#
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# standard_conforming_strings = on
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#
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# ln -s /usr/share/munin/plugins/slony_lag_events_/etc/munin/plugins/slony_lag_events_PGDATABASE
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#
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#
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# Magic markers (optional - only used by munin-config and some installation scripts):
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#%# family=contrib
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PGDATABASE=$(basename $0 | sed 's/^slony_lag_events_//g')
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if [ "$1" = "config" ]; then
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echo "graph_args --base 1000 -l 0"
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echo "graph_category slony"
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echo "graph_info Slony st_lag_num_events for ${PGDATABASE}"
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echo "graph_title Slony lag events for ${PGDATABASE}"
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echo 'graph_vlabel event'
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psql -h ${PGHOST} -d ${PGDATABASE} -U ${PGUSER} -tc "SELECT no_id,regexp_replace(pa_conninfo, '.*host=(.*?) .*$', '\\1') FROM ${PGSCHEMA}.sl_node JOIN ${PGSCHEMA}.sl_path ON (pa_server=no_id) WHERE pa_client=${PGSCHEMA}.getlocalnodeid('${PGSCHEMA}'::name);" | while read node_id sep host
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do
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test -z "${node_id}" && continue
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echo "${node_id}.label ${host}"
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echo "${node_id}.type GAUGE"
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echo "${node_id}.draw LINE2"
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echo "${node_id}.info difference between st_last_event and st_last_received"
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echo "${node_id}.warning 150"
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echo "${node_id}.critical 200"
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done
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exit 0
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fi
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psql -h ${PGHOST} -d ${PGDATABASE} -U ${PGUSER} -tc "SELECT st_received, st_lag_num_events FROM ${PGSCHEMA}.sl_status ORDER BY 1;" | while read node_id sep event
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do
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test -z "${node_id}" && continue
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echo "${node_id}.value ${event}"
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done
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