PostgreSQL的监控一(pgsnap & pgstatspack)
监控postgreSQL的方法很多，本文做个简单的比较。
大的方面，监控方法可以分为以下几种
比如：
http://www.postgresql.org/docs/current/static/monitoring-stats.html
使用例：
生成的结果，可参考下面的demo
http://pgsnap.projects.pgfoundry.org/pgbench_snap_20120930/
前面介绍的pgsnap真的只是个某一时间点的snap采集工具，不能对一段时间内的变化做分析。
pgstatspack稍微进了一步，它把每次采集的snap信息存在数据库里，然后可以对2个snap信息进行比较生成文本的性能报告。
下面是使用的例子：
1）安装pgstatspack
2）创建snapshot
3）生成报告
大的方面，监控方法可以分为以下几种
1 直接利用PG提供的性能统计数据
PG的很多性能数据可以通过查询pg_stat_或pg_statio_开头的系统表获取。比如：
- postgres=# \x
- Expanded display is on.
- postgres=# select * from pg_stat_database where datname='postgres';
- -[ RECORD 1 ]--+------------------------------
- datid | 12896
- datname | postgres
- numbackends | 1
- xact_commit | 5692
- xact_rollback | 3
- blks_read | 155
- blks_hit | 157853
- tup_returned | 2566687
- tup_fetched | 32370
- tup_inserted | 0
- tup_updated | 7
- tup_deleted | 0
- conflicts | 0
- temp_files | 0
- temp_bytes | 0
- deadlocks | 0
- blk_read_time | 0
- blk_write_time | 0
- stats_reset | 2014-09-23 01:23:12.123612+08
2 PG专用的监控工具
pgsnap, pgstatspack,pgwatch,pg_statsinfo等 。这些工具主要做PG的性能分析，状态查看的。不能做故障通知。2.1 pgsnap
http://pgsnap.projects.pgfoundry.org/
pgsnap是个PostgreSQL报告工具，不需要在数据库上安装任何东西，可以远程连接到数据库，然后通过PG已有的系统表查询统计数据并生成HTML报告。使用例：
- [root@zabbix ~]# tar xfz pgsnap-0.8.0.tar.gz
- [root@zabbix ~]# cd pgsnap-0.8.0
- [root@zabbix pgsnap-0.8.0]# ./pgsnap.php -h localhost -p 5432 -U postgres postgres
- Connecting to postgres database...
- Adding some HTML files...
- Getting Misc informations...
- Getting General informations...
- sh: pg_config: command not found
- sh: pg_controldata: command not found
- Getting Global Informations...
- pg_buffercache
- Getting Database Informations...
- pg_buffercache
- pgstattuple
- pgstattuple on indexes
- Getting Current Activities Informations...
- Getting Statistical Informations...
- Getting Tools Informations...
- pgPool
生成的结果，可参考下面的demo
http://pgsnap.projects.pgfoundry.org/pgbench_snap_20120930/
2.2 pgstatspack
http://pgfoundry.org/projects/pgstatspack/前面介绍的pgsnap真的只是个某一时间点的snap采集工具，不能对一段时间内的变化做分析。
pgstatspack稍微进了一步，它把每次采集的snap信息存在数据库里，然后可以对2个snap信息进行比较生成文本的性能报告。
下面是使用的例子：
1）安装pgstatspack
- [root@zabbix ~]# tar xfz /root/pgstatspack_version_2.3.1.tar.gz
- [root@zabbix ~]# cd pgstatspack
- [root@zabbix pgstatspack]# su postgres ./install_pgstats.sh
- Results for database template1
- Installing Statistics Package for database template1
- Results for database zabbix
- Installing Statistics Package for database zabbix
2）创建snapshot
- [root@zabbix pgstatspack]# su postgres ./bin/snapshot.sh
- Results for database zabbix
- pgstatspack_snap
- ------------------
- 1
- (1 row)
-
- [root@zabbix pgstatspack]# su postgres ./bin/snapshot.sh
- Results for database zabbix
- pgstatspack_snap
- ------------------
- 2
- (1 row)
3）生成报告
- [root@zabbix pgstatspack]# su postgres ./bin/pgstatspack_report.sh
/root/pgstatspack/bin /root/pgstatspack
Please specify a username:
postgres
List of available databases:
1 . zabbix
Please select a number from the above list [ 1 - 1 ]
1
snapid | ts | description
--------+----------------------------+---------------------
2 | 2014-09-25 01:13:02.292668 | cron based snapshot
1 | 2014-09-25 01:09:20.71257 | cron based snapshot
(2 rows)
Enter start snapshot id : 1
Enter stop snapshot id : 2
Using file name: /tmp/pgstatreport_zabbix_1_2.txt
###########################################################################################################
PGStatspack version 2.3 by [email protected]
###########################################################################################################
Snapshot information
Begin snapshot :
snapid | ts | description
--------+---------------------------+---------------------
1 | 2014-09-25 01:09:20.71257 | cron based snapshot
(1 row)
End snapshot :
snapid | ts | description
--------+----------------------------+---------------------
2 | 2014-09-25 01:13:02.292668 | cron based snapshot
(1 row)
Seconds in snapshot: 221.580098
Database version
version
--------------------------------------------------------------------------------------------------------------
PostgreSQL 9.3.4 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-4), 64-bit
(1 row)
Database information
current_database | dbsize
------------------+--------
zabbix | 140 MB
(1 row)
Database statistics
database | tps | hitrate | lio_ps | pio_ps | rollbk_ps
-----------+------+---------+--------+--------+-----------
zabbix | 1.73 | 99.00 | 164.87 | 0.58 | 0.00
postgres | 0.05 | 99.00 | 1.73 | 0.00 | 0.00
template1 | 0.04 | 99.00 | 0.99 | 0.00 | 0.00
template0 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00
(4 rows)
Top 20 tables ordered by table size changes
table | table_growth | index_growth
------------------------------+--------------+--------------
pg_toast.pg_toast_16818 | | 0
pg_catalog.pg_ts_config | | 0
pg_toast.pg_toast_17807 | | 0
pg_toast.pg_toast_16792 | | 0
public.services_times | | 0
pg_catalog.pg_authid | | 0
public.opcommand_hst | | 0
public.icon_mapping | | 0
pg_catalog.pg_cast | | 0
pg_toast.pg_toast_12481 | | 0
pg_catalog.pg_foreign_server | | 0
pg_catalog.pg_event_trigger | | 0
pg_catalog.pg_namespace | | 0
public.nodes | | 0
pg_toast.pg_toast_12491 | | 0
public.pgstatspack_indexes | | 32768
public.history_sync | | 0
pg_catalog.pg_depend | | 0
public.profiles | | 0
pg_toast.pg_toast_2396 | | 0
(20 rows)
Top 20 tables ordered by high table to index read ratio
table | system_read_pct | table_read_pct | index_read_pct
----------------------------+-----------------+----------------+----------------
pg_catalog.pg_class | 23 | 88 | 11
public.pgstatspack_names | 21 | 98 | 1
public.items | 17 | 98 | 1
public.hosts | 6 | 99 | 0
pg_catalog.pg_proc | 5 | 93 | 6
pg_catalog.pg_index | 4 | 83 | 16
public.pgstatspack_tables | 3 | 100 | 0
public.triggers | 3 | 99 | 0
public.functions | 3 | 98 | 1
pg_catalog.pg_attribute | 3 | 0 | 100
pg_catalog.pg_opclass | 1 | 0 | 100
public.globalmacro | 0 | 100 | 0
public.interface | 0 | 100 | 0
public.config | 0 | 100 | 0
public.pgstatspack_indexes | 0 | 100 | 0
pg_catalog.pg_am | 0 | 100 | 0
public.expressions | 0 | 100 | 0
public.host_inventory | 0 | 100 | 0
public.regexps | 0 | 100 | 0
public.media_type | 0 | 100 | 0
(20 rows)
Top 20 tables ordered by inserts
table | table_inserts
-------------------------------+---------------
public.history_uint | 797
public.pgstatspack_names | 728
public.pgstatspack_indexes | 425
public.pgstatspack_tables | 228
public.history | 196
public.pgstatspack_settings | 34
pg_catalog.pg_statistic | 29
public.pgstatspack_sequences | 8
public.pgstatspack_database | 4
public.history_str | 4
public.pgstatspack_snap | 1
public.pgstatspack_bgwriter | 1
public.nodes | 0
pg_catalog.pg_namespace | 0
pg_catalog.pg_db_role_setting | 0
pg_catalog.pg_foreign_server | 0
public.dchecks | 0
pg_catalog.pg_event_trigger | 0
pg_toast.pg_toast_12481 | 0
pg_catalog.pg_cast | 0
(20 rows)
Top 20 tables ordered by updates
table | table_updates
-------------------------------+---------------
public.hosts | 12
pg_catalog.pg_event_trigger | 0
pg_catalog.pg_description | 0
pg_toast.pg_toast_16792 | 0
public.dchecks | 0
public.pgstatspack_names | 0
pg_toast.pg_toast_12491 | 0
public.icon_mapping | 0
pg_catalog.pg_cast | 0
pg_toast.pg_toast_12481 | 0
pg_catalog.pg_foreign_server | 0
pg_catalog.pg_db_role_setting | 0
pg_catalog.pg_namespace | 0
public.nodes | 0
public.config | 0
public.pgstatspack_indexes | 0
public.history_sync | 0
pg_catalog.pg_depend | 0
public.opcommand_hst | 0
public.profiles | 0
(20 rows)
Top 20 tables ordered by deletes
table | table_deletes
-------------------------------+---------------
public.opcommand_hst | 0
pg_catalog.pg_event_trigger | 0
public.config | 0
pg_toast.pg_toast_16792 | 0
public.dchecks | 0
public.pgstatspack_names | 0
pg_toast.pg_toast_12491 | 0
public.icon_mapping | 0
pg_catalog.pg_cast | 0
pg_toast.pg_toast_12481 | 0
pg_catalog.pg_foreign_server | 0
pg_catalog.pg_db_role_setting | 0
pg_catalog.pg_namespace | 0
public.nodes | 0
pg_catalog.pg_description | 0
public.pgstatspack_indexes | 0
public.history_sync | 0
pg_catalog.pg_depend | 0
public.profiles | 0
pg_toast.pg_toast_17807 | 0
(20 rows)
Tables ordered by percentage of tuples scanned
table | rows_read_pct | tab_hitrate | idx_hitrate | tab_read | tab_hit | idx_read | idx_hit
------------------------------+---------------+-------------+-------------+----------+---------+----------+---------
pg_catalog.pg_class | 23 | 99 | 99 | 1 | 3101 | 0 | 5212
public.pgstatspack_names | 21 | 99 | 99 | 8 | 1235 | 11 | 2994
public.items | 17 | 99 | 99 | 0 | 908 | 0 | 118
public.hosts | 6 | 99 | 97 | 0 | 312 | 0 | 40
pg_catalog.pg_proc | 5 | 93 | 99 | 27 | 383 | 4 | 572
pg_catalog.pg_index | 4 | 99 | 99 | 0 | 682 | 0 | 1258
public.functions | 3 | 98 | 98 | 0 | 80 | 0 | 96
public.triggers | 3 | 98 | 94 | 0 | 96 | 0 | 16
public.pgstatspack_tables | 3 | 97 | 98 | 7 | 308 | 2 | 235
pg_catalog.pg_attribute | 3 | 99 | 99 | 11 | 1503 | 1 | 2901
pg_catalog.pg_opclass | 1 | 99 | 99 | 0 | 631 | 0 | 230
pg_toast.pg_toast_2619 | 0 | 50 | 66 | 0 | 1 | 0 | 2
public.regexps | 0 | 80 | 0 | 0 | 4 | 0 | 0
public.host_inventory | 0 | 80 | 0 | 0 | 4 | 0 | 0
pg_catalog.pg_type | 0 | 99 | 99 | 0 | 310 | 0 | 674
pg_catalog.pg_amop | 0 | 99 | 99 | 0 | 479 | 0 | 740
pg_catalog.pg_attrdef | 0 | 99 | 99 | 0 | 198 | 0 | 258
pg_toast.pg_toast_1255 | 0 | 66 | 75 | 0 | 2 | 0 | 3
pg_catalog.pg_aggregate | 0 | 83 | 90 | 0 | 5 | 0 | 9
public.pgstatspack_bgwriter | 0 | 66 | 66 | 1 | 4 | 2 | 6
public.trigger_depends | 0 | 80 | 80 | 0 | 4 | 0 | 4
pg_toast.pg_toast_2618 | 0 | 68 | 96 | 5 | 13 | 0 | 24
pg_catalog.pg_tablespace | 0 | 90 | 95 | 0 | 10 | 0 | 20
public.media_type | 0 | 80 | 80 | 0 | 4 | 0 | 4
pg_catalog.pg_trigger | 0 | 99 | 99 | 0 | 179 | 0 | 218
pg_catalog.pg_am | 0 | 96 | 0 | 0 | 31 | 0 | 0
public.expressions | 0 | 80 | 0 | 0 | 4 | 0 | 0
public.drules | 0 | 88 | 88 | 0 | 8 | 0 | 8
public.interface | 0 | 80 | 0 | 0 | 4 | 0 | 0
pg_catalog.pg_language | 0 | 50 | 66 | 0 | 1 | 0 | 2
public.pgstatspack_sequences | 0 | 88 | 85 | 1 | 16 | 2 | 18
public.pgstatspack_database | 0 | 71 | 70 | 1 | 5 | 2 | 7
public.httptest | 0 | 98 | 98 | 0 | 90 | 0 | 90
public.pgstatspack_settings | 0 | 97 | 95 | 1 | 68 | 2 | 70
public.config | 0 | 80 | 92 | 0 | 4 | 0 | 12
pg_catalog.pg_database | 0 | 98 | 99 | 0 | 83 | 0 | 108
pg_catalog.pg_cast | 0 | 99 | 99 | 0 | 159 | 0 | 615
pg_catalog.pg_namespace | 0 | 97 | 98 | 0 | 44 | 0 | 93
public.pgstatspack_indexes | 0 | 98 | 98 | 7 | 445 | 5 | 564
pg_catalog.pg_rewrite | 0 | 76 | 97 | 5 | 20 | 0 | 40
pg_catalog.pg_authid | 0 | 95 | 97 | 0 | 19 | 0 | 38
public.hosts_templates | 0 | 80 | 80 | 0 | 4 | 0 | 4
pg_catalog.pg_statistic | 0 | 99 | 99 | 0 | 141 | 0 | 1104
pg_catalog.pg_operator | 0 | 99 | 99 | 1 | 482 | 0 | 651
pg_catalog.pg_amproc | 0 | 99 | 99 | 0 | 168 | 0 | 375
public.globalmacro | 0 | 80 | 0 | 0 | 4 | 0 | 0
(46 rows)
Indexes ordered by scans
index | table | scans | tup_read | tup_fetch | idx_blks_read | idx_blks_hit
----------------------------------------------------+-------------------------------+-------+----------+-----------+---------------+--------------
pg_catalog.pg_class_oid_index | pg_catalog.pg_class | 2456 | 2456 | 2456 | 0 | 4951
pg_catalog.pg_attribute_relid_attnum_index | pg_catalog.pg_attribute | 1433 | 3737 | 3737 | 1 | 2901
pg_catalog.pg_cast_source_target_index | pg_catalog.pg_cast | 598 | 159 | 159 | 0 | 615
pg_catalog.pg_index_indexrelid_index | pg_catalog.pg_index | 534 | 534 | 534 | 0 | 1100
pg_catalog.pg_statistic_relid_att_inh_index | pg_catalog.pg_statistic | 510 | 86 | 86 | 0 | 1104
pg_catalog.pg_type_oid_index | pg_catalog.pg_type | 297 | 296 | 296 | 0 | 622
pg_catalog.pg_proc_oid_index | pg_catalog.pg_proc | 247 | 247 | 247 | 0 | 527
pg_catalog.pg_amop_fam_strat_index | pg_catalog.pg_amop | 214 | 214 | 214 | 0 | 452
pg_catalog.pg_operator_oid_index | pg_catalog.pg_operator | 179 | 179 | 179 | 0 | 383
pg_catalog.pg_amproc_fam_proc_index | pg_catalog.pg_amproc | 172 | 258 | 258 | 0 | 375
public.idx_pgstatspack_names_name | public.pgstatspack_names | 171 | 159 | 159 | 7 | 1591
public.pgstatspack_names_pkey | public.pgstatspack_names | 168 | 168 | 168 | 4 | 1403
pg_catalog.pg_opclass_oid_index | pg_catalog.pg_opclass | 145 | 145 | 145 | 0 | 176
pg_catalog.pg_amop_opr_fam_index | pg_catalog.pg_amop | 131 | 265 | 265 | 0 | 288
pg_catalog.pg_operator_oprname_l_r_n_index | pg_catalog.pg_operator | 122 | 406 | 406 | 0 | 268
pg_catalog.pg_attrdef_adrelid_adnum_index | pg_catalog.pg_attrdef | 119 | 949 | 949 | 0 | 258
pg_catalog.pg_class_relname_nsp_index | pg_catalog.pg_class | 118 | 68 | 68 | 0 | 261
pg_catalog.pg_trigger_tgrelid_tgname_index | pg_catalog.pg_trigger | 104 | 612 | 612 | 0 | 218
public.httptest_3 | public.httptest | 90 | 90 | 90 | 0 | 90
pg_catalog.pg_db_role_setting_databaseid_rol_index | pg_catalog.pg_db_role_setting | 80 | 0 | 0 | 0 | 80
public.escalations_1 | public.escalations | 74 | 0 | 0 | 0 | 74
pg_catalog.pg_index_indrelid_index | pg_catalog.pg_index | 68 | 119 | 119 | 0 | 158
pg_catalog.pg_namespace_nspname_index | pg_catalog.pg_namespace | 62 | 35 | 35 | 0 | 89
public.items_1 | public.items | 42 | 216 | 40 | 0 | 86
pg_catalog.pg_opclass_am_name_nsp_index | pg_catalog.pg_opclass | 40 | 1568 | 1568 | 0 | 54
public.hosts_pkey | public.hosts | 40 | 40 | 40 | 0 | 40
pg_catalog.pg_database_oid_index | pg_catalog.pg_database | 39 | 39 | 39 | 0 | 59
public.pgstatspack_settings_pk | public.pgstatspack_settings | 35 | 68 | 34 | 2 | 70
public.functions_2 | public.functions | 32 | 32 | 32 | 0 | 64
pg_catalog.pg_database_datname_index | pg_catalog.pg_database | 29 | 29 | 29 | 0 | 49
pg_catalog.pg_rewrite_rel_rulename_index | pg_catalog.pg_rewrite | 25 | 27 | 27 | 0 | 40
pg_catalog.pg_type_typname_nsp_index | pg_catalog.pg_type | 21 | 14 | 14 | 0 | 52
pg_catalog.pg_proc_proname_args_nsp_index | pg_catalog.pg_proc | 19 | 79 | 79 | 4 | 45
public.items_pkey | public.items | 16 | 16 | 16 | 0 | 32
public.functions_1 | public.functions | 16 | 16 | 16 | 0 | 32
pg_toast.pg_toast_2618_index | pg_toast.pg_toast_2618 | 15 | 28 | 28 | 0 | 24
public.media_2 | public.media | 12 | 0 | 0 | 0 | 16
pg_catalog.pg_tablespace_oid_index | pg_catalog.pg_tablespace | 10 | 10 | 10 | 0 | 19
pg_catalog.pg_authid_oid_index | pg_catalog.pg_authid | 10 | 10 | 10 | 0 | 20
pg_catalog.pg_authid_rolname_index | pg_catalog.pg_authid | 9 | 9 | 9 | 0 | 18
public.pgstatspack_sequences_pk | public.pgstatspack_sequences | 9 | 16 | 8 | 2 | 18
public.drules_1 | public.drules | 8 | 8 | 8 | 0 | 8
public.triggers_pkey | public.triggers | 8 | 8 | 8 | 0 | 16
public.alerts_4 | public.alerts | 8 | 0 | 0 | 0 | 16
pg_catalog.pg_aggregate_fnoid_index | pg_catalog.pg_aggregate | 5 | 5 | 5 | 0 | 9
public.trigger_depends_1 | public.trigger_depends | 4 | 164 | 164 | 0 | 4
public.hosts_templates_1 | public.hosts_templates | 4 | 108 | 108 | 0 | 4
public.pgstatspack_bgwriter_pk | public.pgstatspack_bgwriter | 4 | 4 | 4 | 2 | 6
public.pgstatspack_database_pk | public.pgstatspack_database | 2 | 8 | 0 | 2 | 7
pg_toast.pg_toast_1255_index | pg_toast.pg_toast_1255 | 2 | 4 | 4 | 0 | 3
public.pgstatspack_functions_pk | public.pgstatspack_functions | 1 | 0 | 0 | 1 | 2
pg_catalog.pg_language_oid_index | pg_catalog.pg_language | 1 | 1 | 1 | 0 | 2
pg_toast.pg_toast_2619_index | pg_toast.pg_toast_2619 | 1 | 1 | 1 | 0 | 2
pg_catalog.pg_namespace_oid_index | pg_catalog.pg_namespace | 1 | 1 | 1 | 0 | 4
public.pgstatspack_statements_pk | public.pgstatspack_statements | 1 | 0 | 0 | 1 | 4
public.hostmacro_pkey | public.hostmacro | 0 | 0 | 0 | 0 | 4
public.history_uint_1 | public.history_uint | 0 | 0 | 0 | 11 | 2424
public.users_groups_pkey | public.users_groups | 0 | 0 | 0 | 0 | 4
public.maintenances_windows_pkey | public.maintenances_windows | 0 | 0 | 0 | 0 | 4
public.alerts_1 | public.alerts | 0 | 0 | 0 | 0 | 8
public.pgstatspack_indexes_pk | public.pgstatspack_indexes | 0 | 0 | 0 | 5 | 564
public.alerts_6 | public.alerts | 0 | 0 | 0 | 0 | 8
public.hostmacro_1 | public.hostmacro | 0 | 0 | 0 | 0 | 4
public.maintenances_windows_2 | public.maintenances_windows | 0 | 0 | 0 | 0 | 4
public.media_type_pkey | public.media_type | 0 | 0 | 0 | 0 | 4
public.alerts_5 | public.alerts | 0 | 0 | 0 | 0 | 8
pg_catalog.pg_tablespace_spcname_index | pg_catalog.pg_tablespace | 0 | 0 | 0 | 0 | 1
public.history_str_1 | public.history_str | 0 | 0 | 0 | 0 | 8
public.alerts_2 | public.alerts | 0 | 0 | 0 | 0 | 8
public.config_1 | public.config | 0 | 0 | 0 | 0 | 4
public.maintenances_1 | public.maintenances | 0 | 0 | 0 | 0 | 4
public.media_pkey | public.media | 0 | 0 | 0 | 0 | 4
public.alerts_pkey | public.alerts | 0 | 0 | 0 | 0 | 8
public.users_groups_1 | public.users_groups | 0 | 0 | 0 | 0 | 4
public.config_2 | public.config | 0 | 0 | 0 | 0 | 4
public.maintenances_windows_1 | public.maintenances_windows | 0 | 0 | 0 | 0 | 4
public.maintenances_pkey | public.maintenances | 0 | 0 | 0 | 0 | 4
public.timeperiods_pkey | public.timeperiods | 0 | 0 | 0 | 0 | 4
public.history_1 | public.history | 0 | 0 | 0 | 2 | 600
public.pgstatspack_tables_pk | public.pgstatspack_tables | 0 | 0 | 0 | 2 | 235
public.config_pkey | public.config | 0 | 0 | 0 | 0 | 4
public.media_1 | public.media | 0 | 0 | 0 | 0 | 4
public.alerts_3 | public.alerts | 0 | 0 | 0 | 0 | 8
public.users_groups_2 | public.users_groups | 0 | 0 | 0 | 0 | 4
(84 rows)
Sequences ordered by blks_read
sequence | blks_read | blks_hit
--------------------------+-----------+----------
public.pgstatspackid | 0 | 1
public.pgstatspacknameid | 0 | 728
(2 rows)
Top 20 SQL statements ordered by total_time
calls | total_time | total_time_percent | rows | user | query
-------+------------+--------------------+------+------+-------
(0 rows)
Top 20 user functions ordered by total_time
funcid | function_name | calls | total_time | self_time
--------+---------------+-------+------------+-----------
(0 rows)
background writer stats
checkpoints_timed | checkpoints_req | buffers_checkpoint | buffers_clean | maxwritten_clean | buffers_backend | buffers_alloc
-------------------+-----------------+--------------------+---------------+------------------+-----------------+---------------
0 | 0 | 0 | 0 | 0 | 0 | 128
(1 row)
background writer relative stats
checkpoints_timed | minutes_between_checkpoint | buffers_checkpoint | buffers_clean | buffers_backend | total_writes | avg_checkpoint_write
-------------------+----------------------------+--------------------+---------------+-----------------+--------------+----------------------
| | | | | 0.000 MB/s |
(1 row)
Parameters
name | start_setting | stop_setting | source
----------------------------+-----------------------------------------+-----------------------------------------+----------------------
max_stack_depth | 2048 | 2048 | environment variable
hba_file | /var/lib/pgsql/9.3/data/pg_hba.conf | /var/lib/pgsql/9.3/data/pg_hba.conf | override
lc_time | en_US.UTF-8 | en_US.UTF-8 | configuration file
log_destination | stderr | stderr | configuration file
ident_file | /var/lib/pgsql/9.3/data/pg_ident.conf | /var/lib/pgsql/9.3/data/pg_ident.conf | override
log_rotation_age | 1440 | 1440 | configuration file
max_connections | 100 | 100 | configuration file
log_truncate_on_rotation | on | on | configuration file
TimeZone | PRC | PRC | configuration file
port | 5432 | 5432 | command line
application_name | psql | psql | client
lc_numeric | en_US.UTF-8 | en_US.UTF-8 | configuration file
wal_buffers | 512 | 512 | override
lc_ctype | en_US.UTF-8 | en_US.UTF-8 | override
data_checksums | off | off | override
client_encoding | UTF8 | UTF8 | client
config_file | /var/lib/pgsql/9.3/data/postgresql.conf | /var/lib/pgsql/9.3/data/postgresql.conf | override
transaction_deferrable | off | off | override
lc_collate | en_US.UTF-8 | en_US.UTF-8 | override
log_rotation_size | 0 | 0 | configuration file
log_filename | postgresql-%a.log | postgresql-%a.log | configuration file
lc_messages | en_US.UTF-8 | en_US.UTF-8 | configuration file
transaction_isolation | read committed | read committed | override
default_text_search_config | pg_catalog.english | pg_catalog.english | configuration file
server_encoding | UTF8 | UTF8 | override
log_directory | pg_log | pg_log | configuration file
transaction_read_only | off | off | override
lc_monetary | en_US.UTF-8 | en_US.UTF-8 | configuration file
logging_collector | on | on | configuration file
log_line_prefix | < %m > | < %m > | configuration file
DateStyle | ISO, MDY | ISO, MDY | configuration file
shared_buffers | 16384 | 16384 | configuration file
data_directory | /var/lib/pgsql/9.3/data | /var/lib/pgsql/9.3/data | override
log_timezone | PRC | PRC | configuration file
(34 rows)
This report is saved as /tmp/pgstatreport_zabbix_1_2.txt
/root/pgstatspack