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pg_replication:
query: "SELECT EXTRACT(EPOCH FROM (now() - pg_last_xact_replay_timestamp()))::INT as lag"
metrics:
- lag:
usage: "GAUGE"
description: "Replication lag behind master in seconds"
pg_postmaster:
query: "SELECT pg_postmaster_start_time as start_time_seconds from pg_postmaster_start_time()"
metrics:
- start_time_seconds:
usage: "GAUGE"
description: "Time at which postmaster started"
pg_stat_user_tables:
query: "SELECT schemaname, relname, seq_scan, seq_tup_read, idx_scan, idx_tup_fetch, n_tup_ins, n_tup_upd, n_tup_del, n_tup_hot_upd, n_live_tup, n_dead_tup, n_mod_since_analyze, last_vacuum, last_autovacuum, last_analyze, last_autoanalyze, vacuum_count, autovacuum_count, analyze_count, autoanalyze_count FROM pg_stat_user_tables"
metrics:
- schemaname:
usage: "LABEL"
description: "Name of the schema that this table is in"
- relname:
usage: "LABEL"
description: "Name of this table"
- seq_scan:
usage: "COUNTER"
description: "Number of sequential scans initiated on this table"
- seq_tup_read:
usage: "COUNTER"
description: "Number of live rows fetched by sequential scans"
- idx_scan:
usage: "COUNTER"
description: "Number of index scans initiated on this table"
- idx_tup_fetch:
usage: "COUNTER"
description: "Number of live rows fetched by index scans"
- n_tup_ins:
usage: "COUNTER"
description: "Number of rows inserted"
- n_tup_upd:
usage: "COUNTER"
description: "Number of rows updated"
- n_tup_del:
usage: "COUNTER"
description: "Number of rows deleted"
- n_tup_hot_upd:
usage: "COUNTER"
description: "Number of rows HOT updated (i.e., with no separate index update required)"
- n_live_tup:
usage: "GAUGE"
description: "Estimated number of live rows"
- n_dead_tup:
usage: "GAUGE"
description: "Estimated number of dead rows"
- n_mod_since_analyze:
usage: "GAUGE"
description: "Estimated number of rows changed since last analyze"
- last_vacuum:
usage: "GAUGE"
description: "Last time at which this table was manually vacuumed (not counting VACUUM FULL)"
- last_autovacuum:
usage: "GAUGE"
description: "Last time at which this table was vacuumed by the autovacuum daemon"
- last_analyze:
usage: "GAUGE"
description: "Last time at which this table was manually analyzed"
- last_autoanalyze:
usage: "GAUGE"
description: "Last time at which this table was analyzed by the autovacuum daemon"
- vacuum_count:
usage: "COUNTER"
description: "Number of times this table has been manually vacuumed (not counting VACUUM FULL)"
- autovacuum_count:
usage: "COUNTER"
description: "Number of times this table has been vacuumed by the autovacuum daemon"
- analyze_count:
usage: "COUNTER"
description: "Number of times this table has been manually analyzed"
- autoanalyze_count:
usage: "COUNTER"
description: "Number of times this table has been analyzed by the autovacuum daemon"
pg_statio_user_tables:
query: "SELECT schemaname, relname, heap_blks_read, heap_blks_hit, idx_blks_read, idx_blks_hit, toast_blks_read, toast_blks_hit, tidx_blks_read, tidx_blks_hit FROM pg_statio_user_tables"
metrics:
- schemaname:
usage: "LABEL"
description: "Name of the schema that this table is in"
- relname:
usage: "LABEL"
description: "Name of this table"
- heap_blks_read:
usage: "COUNTER"
description: "Number of disk blocks read from this table"
- heap_blks_hit:
usage: "COUNTER"
description: "Number of buffer hits in this table"
- idx_blks_read:
usage: "COUNTER"
description: "Number of disk blocks read from all indexes on this table"
- idx_blks_hit:
usage: "COUNTER"
description: "Number of buffer hits in all indexes on this table"
- toast_blks_read:
usage: "COUNTER"
description: "Number of disk blocks read from this table's TOAST table (if any)"
- toast_blks_hit:
usage: "COUNTER"
description: "Number of buffer hits in this table's TOAST table (if any)"
- tidx_blks_read:
usage: "COUNTER"
description: "Number of disk blocks read from this table's TOAST table indexes (if any)"
- tidx_blks_hit:
usage: "COUNTER"
description: "Number of buffer hits in this table's TOAST table indexes (if any)"
pg_database:
query: " SELECT pg_database.datname, pg_database_size(pg_database.datname) as size FROM pg_database"
metrics:
- datname:
usage: "LABEL"
description: "Name of the database"
- size:
usage: "GAUGE"
description: "Disk space used by the database"
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