Collectors - CHERTS/pgscv GitHub Wiki
Collectors
List of available collectors and information collected by them
Index of content:
System collectors
System collectors collects metrics only from local system where pgSCV is running.
| Collector |
Datasource |
Description |
| system/loadaverage |
/proc/loadavg |
load averages |
| system/cpu |
/proc/stat |
cpu usage |
| system/diskstats |
/proc/diskstats |
block devices usage |
| system/filesystems |
/proc/mounts |
filesystem usage |
| system/netdev |
/proc/net/dev |
network interfaces usage |
| system/network |
|
network settings information |
| system/memory |
/proc/meminfo, /proc/vmstat |
memory usage |
| system/sysconfig |
/proc/sys, /sys/devices/system |
system config |
PostgreSQL collectors
Some of PostgreSQL collectors have specific requirements such as PostgreSQL version or configuration settings. If requirements are not satisfied, collector will not collect metrics. See availability notes.
| Collector |
Datasource |
Description |
Availability |
| postgres/activity |
pg_stat_activity |
current activity stats |
|
| postgres/archiver |
pg_stat_archiver |
WAL archiving stats |
>= Postgres 12 |
| postgres/bgwriter |
pg_stat_bgwriter |
background writer and checkpointer stats |
|
| postgres/conflicts |
pg_stat_database_conflicts |
recovery conflicts occurred during replication |
|
| postgres/databases |
pg_stat_databases |
databases general stats |
|
| postgres/indexes |
pg_stat_user_indexes, pg_statio_user_indexes |
indexes usage and IO stats |
|
| postgres/functions |
pg_stat_user_functions |
functions usage and timings stats |
|
| postgres/locks |
pg_locks |
current activity locks |
|
| postgres/logs |
System paths |
Postgres log messages |
>= Postgres 10, logging_collector = on, access to local filesystem |
| postgres/replication |
pg_stat_replication |
replication stats |
|
| postgres/replication_slots |
pg_replication_slots |
replication slots usage stats |
|
| postgres/statements |
pg_stat_statements |
executed statements stats |
enabled pg_stat_statements |
| postgres/schemas |
pg_catalog.* |
databases' schemas stats from system catalog |
>= Postgres 9.5 |
| postgres/settings |
pg_show_all_settings() |
current settings |
|
| postgres/storage |
DATADIR paths |
data files/directories usage stats |
>= Postgres 10, access to local filesystem |
| postgres/stat_io |
pg_stat_io |
I/O statistics |
>= Postgres 16 |
| postgres/stat_slru |
pg_stat_slru |
SLRU (simple least-recently-used) caches statistics |
>= Postgres 13 |
| postgres/tables |
pg_stat_user_tables, pg_statio_user_tables |
tables usage and IO stats |
|
| postgres/wal |
pg_stat_wal, WAL functions |
WAL usage (records, FPIs, bytes) |
|
| postgres/custom |
|
user-defined metrics based on SQL queries |
|
Pgbouncer collectors
| Collector |
Datasource |
Description |
| pgbouncer/pools |
SHOW POOLS |
pools usage stats |
| pgbouncer/stats |
SHOW STATS |
general pgbouncer stats |
| pgbouncer/settings |
SHOW CONFIG |
current settings (including per-database settings) |
Patroni collectors
| Collector |
Datasource |
Description |
| patroni/common |
/patroni, /history, /config |
common operational information |
Miscellaneous collectors
| Collector |
Datasource |
Description |
| system/pgscv |
internal |
pgSCV internal metrics |