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Major refactoring to support multiple new features.

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Issue - (#16): PG-112: Change the column name "ip" to "client_ip" for readability purpose.
Issue - (#17): PG-111: Show all the queries from complete and incomplete buckets.
Issue - (#18): PG-108: Log the bucket start time.
Issue - (#19): PG-99: Response time histogram.
Issue - (#20): PG-97: Log CPU time for a query.
Issue - (#21): PG-96: Show objects(tables) involved in the query.
Issue - (#22): PG-93: Retain the bucket, and don't delete the bucket automatically.
Issue - (#23): PG-91: Log queries of all the databases.
Issue - (#24): PG-116: Restrict the query size.
Issue - (#3) : README file update.
This commit is contained in:
Ibrar Ahmed
2020-02-27 19:27:05 +00:00
parent 0e47677552
commit 179e99d692
4 changed files with 933 additions and 1634 deletions
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208
README.md
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@@ -18,11 +18,11 @@ There are two ways to install pg_stat_monitor. The first is by downloading the p
##### 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
https://github.com/Percona/pg_stat_monitor/releases
or it can be downloaded using the git:
git clone git://github.com/Percona-Lab/pg_stat_monitor.git
git clone git://github.com/Percona/pg_stat_monitor.git
After downloading the code, set the path for the [PostgreSQL][1] binary:
@@ -57,46 +57,46 @@ There are four views, and complete statistics can be accessed using these views.
##### pg_stat_monitor
This is the main view which stores per query-based statistics, similar to pg_stat_statment with some additional columns.
\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 | | |
postgres=# \d pg_stat_monitor;
View "public.pg_stat_monitor"
Column | Type | Collation | Nullable | Default
---------------------+--------------------------+-----------+----------+---------
bucket | oid | | |
bucket_start_time | timestamp with time zone | | |
userid | oid | | |
dbid | oid | | |
queryid | text | | |
query | text | | |
calls | bigint | | |
total_time | double precision | | |
min_time | double precision | | |
max_time | double precision | | |
mean_time | double precision | | |
stddev_time | double precision | | |
int8 | 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 | bigint | | |
client_ip | inet | | |
resp_calls | text[] | | |
cpu_user_time | double precision | | |
cpu_sys_time | double precision | | |
tables_names | text[] | | |
These are new column added to have more detail about the query.
host: Client IP or Hostname
client_ip: Client IP or Hostname
hist_calls: Hourly based 24 hours calls of query histogram
hist_min_time: Hourly based 24 hours min time of query histogram
Hist_max_time: Hourly based 24 hours max time of query histogram
@@ -106,84 +106,72 @@ These are new column added to have more detail about the query.
cpu_sys_time: CPU System time for that query.
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 | | |
postgres=# \d pg_stat_agg_database
View "public.pg_stat_agg_database"
Column | Type | Collation | Nullable | Default
---------------+------------------+-----------+----------+---------
bucket | oid | | |
queryid | text | | |
dbid | bigint | | |
userid | oid | | |
client_ip | inet | | |
total_calls | integer | | |
min_time | double precision | | |
max_time | double precision | | |
mean_time | double precision | | |
resp_calls | text[] | | |
cpu_user_time | double precision | | |
cpu_sys_time | double precision | | |
query | text | | |
tables_names | 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 | | |
postgres=# \d pg_stat_agg_user
View "public.pg_stat_agg_user"
Column | Type | Collation | Nullable | Default
---------------+------------------+-----------+----------+---------
bucket | oid | | |
queryid | text | | |
dbid | bigint | | |
userid | oid | | |
client_ip | inet | | |
total_calls | integer | | |
min_time | double precision | | |
max_time | double precision | | |
mean_time | double precision | | |
resp_calls | text[] | | |
cpu_user_time | double precision | | |
cpu_sys_time | double precision | | |
query | text | | |
tables_names | 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 | | |
postgres=# \d pg_stat_agg_ip
View "public.pg_stat_agg_ip"
Column | Type | Collation | Nullable | Default
---------------+------------------+-----------+----------+---------
bucket | oid | | |
queryid | text | | |
dbid | bigint | | |
userid | oid | | |
client_ip | inet | | |
host | bigint | | |
total_calls | integer | | |
min_time | double precision | | |
max_time | double precision | | |
mean_time | double precision | | |
resp_calls | text[] | | |
cpu_user_time | double precision | | |
cpu_sys_time | double precision | | |
query | text | | |
tables_names | text[] | | |
Examples
1 - In this query we are getting the exact value of f1 which is '05:06:07-07' in the case of slow queries.
1 - In this query we are getting the exact value of f1 which is '05:06:07-07' (special setting is required for this).
# select userid, queryid, query, slow_query, max_time, total_calls from pg_stat_agg_user;
# select userid, queryid, query, max_time, total_calls from pg_stat_agg_user;
-[ RECORD 1 ]----------------------------------------------------------------------------------------
userid | 10
queryid | -203926152419851453
query | SELECT f1 FROM TIMETZ_TBL WHERE f1 < $1
slow_query | SELECT f1 FROM TIMETZ_TBL WHERE f1 < '05:06:07-07';
query | SELECT f1 FROM TIMETZ_TBL WHERE f1 < '05:06:07-07';
max_time | 1.237875
total_calls | 8
@@ -206,6 +194,6 @@ Copyright (c) 2006 - 2019, Percona LLC.
See [`LICENSE`][2] for full details.
[1]: https://www.postgresql.org/
[2]: https://github.com/Percona-Lab/pg_stat_monitor/blob/master/LICENSE
[3]: https://github.com/Percona-Lab/pg_stat_monitor/issues/new
[2]: https://github.com/Percona/pg_stat_monitor/blob/master/LICENSE
[3]: https://github.com/Percona/pg_stat_monitor/issues/new
[4]: CONTRIBUTING.md