8.2 KiB
8.2 KiB
pg_stat_monitor - Statists collector for PostgreSQL.
The pg_stat_monitor is statistics collector tool based on PostgreSQL's pg_stat_statement.
Supported PostgreSQL Versions.
* PostgreSQL Version 11
* PostgreSQL Version 12
* Percona Dsitribution for PostgreSQL
Installation
There are two ways to install the pg_stat_monitor. The first is by downloading the pg_stat_monitor source code and compiling it. The second option is to download the deb or rpm packages.
Download and compile
The latest release of pg_stat_monitor can be downloaded from this GitHub page:
https://github.com/Percona-Lab/pg_stat_monitor/releases
or it can be downloaded using the git:
git clone git://github.com/Percona-Lab/pg_stat_monitor.git
After downloading the code, set the path for the PostgreSQL binary: cd pg_stat_monitor make USE_PGXS=1 make USE_PGXS=1 install
Usage
There are four views, and complete statistics can be accessed using these views.
\d pg_stat_monitor;
View "public.pg_stat_monitor"
Column | Type | Collation | Nullable | Default
---------------------+------------------+-----------+----------+---------
userid | oid | | |
dbid | oid | | |
queryid | bigint | | |
query | text | | |
calls | bigint | | |
total_time | double precision | | |
min_time | double precision | | |
max_time | double precision | | |
mean_time | double precision | | |
stddev_time | double precision | | |
rows | bigint | | |
shared_blks_hit | bigint | | |
shared_blks_read | bigint | | |
shared_blks_dirtied | bigint | | |
shared_blks_written | bigint | | |
local_blks_hit | bigint | | |
local_blks_read | bigint | | |
local_blks_dirtied | bigint | | |
local_blks_written | bigint | | |
temp_blks_read | bigint | | |
temp_blks_written | bigint | | |
blk_read_time | double precision | | |
blk_write_time | double precision | | |
host | integer | | |
hist_calls | text | | |
hist_min_time | text | | |
hist_max_time | text | | |
hist_mean_time | text | | |
slow_query | text | | |
cpu_user_time | double precision | | |
cpu_sys_time | double precision | | |
regression=# \d pg_stat_agg_database
View "public.pg_stat_agg_database"
Column | Type | Collation | Nullable | Default
----------------+--------------------------+-----------+----------+---------
queryid | bigint | | |
dbid | bigint | | |
userid | oid | | |
host | inet | | |
total_calls | integer | | |
min_time | double precision | | |
max_time | double precision | | |
mean_time | double precision | | |
hist_calls | text[] | | |
hist_min_time | text[] | | |
hist_max_time | text[] | | |
hist_mean_time | text[] | | |
first_log_time | timestamp with time zone | | |
last_log_time | timestamp with time zone | | |
cpu_user_time | double precision | | |
cpu_sys_time | double precision | | |
query | text | | |
slow_query | text | | |
# \d pg_stat_agg_user
View "public.pg_stat_agg_user"
Column | Type | Collation | Nullable | Default
----------------+--------------------------+-----------+----------+---------
queryid | bigint | | |
dbid | bigint | | |
userid | oid | | |
host | inet | | |
total_calls | integer | | |
min_time | double precision | | |
max_time | double precision | | |
mean_time | double precision | | |
hist_calls | text[] | | |
hist_min_time | text[] | | |
hist_max_time | text[] | | |
hist_mean_time | text[] | | |
first_log_time | timestamp with time zone | | |
last_log_time | timestamp with time zone | | |
cpu_user_time | double precision | | |
cpu_sys_time | double precision | | |
query | text | | |
slow_query | text | | |
# \d pg_stat_agg_host
View "public.pg_stat_agg_host"
Column | Type | Collation | Nullable | Default
----------------+--------------------------+-----------+----------+---------
queryid | bigint | | |
dbid | bigint | | |
userid | oid | | |
host | inet | | |
total_calls | integer | | |
min_time | double precision | | |
max_time | double precision | | |
mean_time | double precision | | |
hist_calls | text[] | | |
hist_min_time | text[] | | |
hist_max_time | text[] | | |
hist_mean_time | text[] | | |
first_log_time | timestamp with time zone | | |
last_log_time | timestamp with time zone | | |
cpu_user_time | double precision | | |
cpu_sys_time | double precision | | |
query | text | | |
slow_query | text | | |
Limitation
There are some limitations and Todo's.
Licence
Copyright (c) 2006 - 2019, Percona LLC.
See LICENSE for full detail