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PG-182: Added a new option for the query buffer overflow.

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Ibrar Ahmed
2021-02-17 13:08:39 +00:00
parent 0c9c25fbd9
commit 6aa1b2e7b6
6 changed files with 61 additions and 43 deletions
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29
docs/USER_GUIDE.md
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@@ -15,33 +15,6 @@ CREATE EXTENSION
Here is the complete list of configuration parameters.
```sql
postgres=# select * from pg_stat_monitor_settings;
name | value | default_value | description | minimum | maximum
| restart
------------------------------------------+-------+---------------+----------------------------------------------------------------------------------------------------------+---------+------------
+---------
pg_stat_monitor.pgsm_max | 100 | 100 | Sets the maximum size of shared memory in (MB) used for statement's metadata tracked by pg_stat_monitor. | 1 | 1000
| 1
pg_stat_monitor.pgsm_query_max_len | 1024 | 1024 | Sets the maximum length of query. | 1024 | 2147483647
| 1
pg_stat_monitor.pgsm_enable | 1 | 1 | Enable/Disable statistics collector. | 0 | 0
| 1
pg_stat_monitor.pgsm_track_utility | 1 | 0 | Selects whether utility commands are tracked. | 0 | 0
| 0
pg_stat_monitor.pgsm_normalized_query | 0 | 1 | Selects whether save query in normalized format. | 0 | 0
| 0
pg_stat_monitor.pgsm_max_buckets | 10 | 10 | Sets the maximum number of buckets. | 1 | 10
| 1
pg_stat_monitor.pgsm_bucket_time | 60 | 60 | Sets the time in seconds per bucket. | 1 | 2147483647
| 1
pg_stat_monitor.pgsm_histogram_min | 0 | 0 | Sets the time in millisecond. | 0 | 2147483647
| 1
pg_stat_monitor.pgsm_histogram_max | 10 | 10 | Sets the time in millisecond. | 10 | 2147483647
| 1
pg_stat_monitor.pgsm_histogram_buckets | 10 | 10 | Sets the maximum number of histogram buckets | 2 | 2147483647
| 1
pg_stat_monitor.pgsm_query_shared_buffer | 20 | 20 | Sets the maximum size of shared memory in (MB) used for query tracked by pg_stat_monitor. | 1 | 10000
| 1
(11 rows)
```
Some configuration parameters require the server restart and should be set before the server startup. These must be set in the ``postgresql.conf`` file. Other parameters do not require server restart and can be set permanently either in the ``postgresql.conf`` or from the client (``psql``).
@@ -416,4 +389,4 @@ postgres=# select queryid,parentid,query,calls from pg_stat_monitor;
DD2A4843140299C2 | | select * from getnum($1) | 1
42517D48FB98ACF7 | | select prosrc from pg_proc where proname = $1 | 1
(4 rows)
```
```