postgres-toolkit (A Victorinox for PostgreSQL DBA )

postgres-toolkit

A collection of scripts and utilities to manage PostgreSQL servers.

Allows DBA to perform complicated tasks with single commands.

Focusing on frequent tasks for PostgreSQL DBA to improve their productivity and quality of operations.

Distributed under the open source license (GPLv2).

Supported OS

For a list of Operating System supported.

Red Hat Enterprise Linux 6 / CentOS 6

Red Hat Enterprise Linux 7 / CentOS 7

Ubuntu 14.04 LTS

Make sure you have Python2.6 or Python2.7 is installed.

PostgreSQL Version

For a list of PostgreSQL supported.

PostgreSQL 9.0

PostgreSQL 9.1

PostgreSQL 9.2

PostgreSQL 9.3

PostgreSQL 9.4

OS:Red Hat Enterprise Linux Server release 6.6 (Santiago)

Monitored PG9.4.5:

host:Node1:192.168.0.113:PG 9.4.5:role:master

host:Node2:192.168.0.114:PG 9.4.5:role:standby

Replication mode:synchronous

Use following command, you can install the toolkit via the Internet

install the toolkit via the Internet.

curl -L http://dl.uptimeforce.com/postgres-toolkit/install.sh | sh

or

wget http://dl.uptimeforce.com/postgres-toolkit/install.sh
sh install.sh

When the installs are done, copying related files under /opt/uptime/postgres-toolkit-<VERSION>.

following install on the master node

[root@node1 soft_bak]# curl -L http://dl.uptimeforce.com/postgres-toolkit/install.sh | sh

% Total % Received % Xferd Average Speed Time Time Time Current

Dload Upload Total Spent Left Speed

105 630 105 630 0 0 554 0 0:00:01 0:00:01 --:--:-- 9264

% Total % Received % Xferd Average Speed Time Time Time Current

Dload Upload Total Spent Left Speed

100 276k 100 276k 0 0 292k 0 --:--:-- --:--:-- --:--:-- 318k

opt/uptime/postgres-toolkit-0.2.2/

opt/uptime/postgres-toolkit-0.2.2/bin/

opt/uptime/postgres-toolkit-0.2.2/bin/pt-config

opt/uptime/postgres-toolkit-0.2.2/bin/pt-snap-statements

opt/uptime/postgres-toolkit-0.2.2/bin/pt-proc-stat

opt/uptime/postgres-toolkit-0.2.2/bin/pt-session-profiler

opt/uptime/postgres-toolkit-0.2.2/bin/pt-table-usage

opt/uptime/postgres-toolkit-0.2.2/bin/pt-tablespace-usage

opt/uptime/postgres-toolkit-0.2.2/bin/pt-set-tablespace

opt/uptime/postgres-toolkit-0.2.2/bin/pt-replication-stat

opt/uptime/postgres-toolkit-0.2.2/bin/pt-stat-snapshot

opt/uptime/postgres-toolkit-0.2.2/bin/verifychecksum.bin

opt/uptime/postgres-toolkit-0.2.2/bin/pt-kill

opt/uptime/postgres-toolkit-0.2.2/bin/pt-xact-stat

opt/uptime/postgres-toolkit-0.2.2/bin/pt-verify-checksum

opt/uptime/postgres-toolkit-0.2.2/bin/pt-index-usage

opt/uptime/postgres-toolkit-0.2.2/share/

opt/uptime/postgres-toolkit-0.2.2/share/pgperf_snapshot_install92.sql

opt/uptime/postgres-toolkit-0.2.2/share/pgperf_snapshot_install91.sql

opt/uptime/postgres-toolkit-0.2.2/share/pgperf_snapshot_install94.sql

opt/uptime/postgres-toolkit-0.2.2/share/pgperf_snapshot_install90.sql

opt/uptime/postgres-toolkit-0.2.2/share/pgperf_snapshot_install93.sql

opt/uptime/postgres-toolkit-0.2.2/docs/

opt/uptime/postgres-toolkit-0.2.2/docs/ja/

opt/uptime/postgres-toolkit-0.2.2/docs/ja/.buildinfo

opt/uptime/postgres-toolkit-0.2.2/docs/ja/index.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/releasenote.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-index-usage.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/install.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-xact-stat.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-set-tablespace.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/searchindex.js

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-verify-checksum.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-proc-stat.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/minus.png

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/down-pressed.png

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/pygments.css

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/file.png

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/up-pressed.png

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/basic.css

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/doctools.js

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/ajax-loader.gif

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/searchtools.js

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/default.css

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/comment.png

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/comment-close.png

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/plus.png

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/sidebar.js

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/comment-bright.png

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/jquery.js

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/underscore.js

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/down.png

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/up.png

opt/uptime/postgres-toolkit-0.2.2/docs/ja/_static/websupport.js

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pgperf_functions.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-replication-stat.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-snap-statements.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-kill.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-table-usage.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/search.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pgperf_overview.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pgperf_tables.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-session-profiler.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-tablespace-usage.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pgperf_intro.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-stat-snapshot.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/genindex.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/pt-config.html

opt/uptime/postgres-toolkit-0.2.2/docs/ja/objects.inv

opt/uptime/postgres-toolkit-0.2.2/docs/en/

opt/uptime/postgres-toolkit-0.2.2/docs/en/.buildinfo

opt/uptime/postgres-toolkit-0.2.2/docs/en/index.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/releasenote.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-index-usage.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/install.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-xact-stat.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-set-tablespace.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/searchindex.js

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-verify-checksum.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-proc-stat.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/minus.png

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/down-pressed.png

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/pygments.css

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/file.png

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/up-pressed.png

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/basic.css

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/doctools.js

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/ajax-loader.gif

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/searchtools.js

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/default.css

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/comment.png

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/comment-close.png

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/plus.png

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/sidebar.js

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/comment-bright.png

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/jquery.js

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/underscore.js

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/down.png

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/up.png

opt/uptime/postgres-toolkit-0.2.2/docs/en/_static/websupport.js

opt/uptime/postgres-toolkit-0.2.2/docs/en/pgperf_functions.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-replication-stat.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-snap-statements.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-kill.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-table-usage.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/search.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pgperf_overview.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pgperf_tables.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-session-profiler.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-tablespace-usage.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pgperf_intro.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-stat-snapshot.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/genindex.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/pt-config.html

opt/uptime/postgres-toolkit-0.2.2/docs/en/objects.inv

opt/uptime/postgres-toolkit-0.2.2/src/

opt/uptime/postgres-toolkit-0.2.2/src/verifychecksum.c

opt/uptime/postgres-toolkit-0.2.2/lib/

opt/uptime/postgres-toolkit-0.2.2/lib/PsqlWrapper.py

opt/uptime/postgres-toolkit-0.2.2/lib/log.pyc

opt/uptime/postgres-toolkit-0.2.2/lib/PsqlWrapper.pyc

opt/uptime/postgres-toolkit-0.2.2/lib/TcpdumpWrapper.pyc

opt/uptime/postgres-toolkit-0.2.2/lib/DirectoryTree.py

opt/uptime/postgres-toolkit-0.2.2/lib/log.py

opt/uptime/postgres-toolkit-0.2.2/lib/DirectoryTree.pyc

opt/uptime/postgres-toolkit-0.2.2/lib/TcpdumpWrapper.py

opt/uptime/postgres-toolkit-0.2.2/LICENSE

Succeeded to install Postgres Toolkit!

Subscribe now to stay informed of the latest Postgres Toolkit news.

- http://postgres-toolkit.launchrock.com/
The official manual is available online.

- https://postgres-toolkit.readthedocs.org/
- https://postgres-toolkit-ja.readthedocs.org/
Thanks for choosing Postgres Toolkit! Enjoy!

When the installs are done, copying related files under /opt/uptime/postgres-toolkit-<VERSION>.

After installing

[postgres@node1 uptime]$ cd postgres-toolkit-0.2.2/
[postgres@node1 postgres-toolkit-0.2.2]$ ls
bin docs lib LICENSE share src

[root@node1 data]# cd /opt/uptime/postgres-toolkit-0.2.2/bin

[root@node1 bin]# ls

pt-config pt-kill pt-replication-stat pt-set-tablespace pt-stat-snapshot pt-table-usage pt-xact-stat

pt-index-usage pt-proc-stat pt-session-profiler pt-snap-statements pt-tablespace-usage pt-verify-checksum verifychecksum.bin

[postgres@node1 bin]$ ./pt-config --help

Usage: pt-config [option...] [command] [param [value]]

Commands:
get [PARAM] Get a current value of a parameter.
set [PARAM] [VALUE] Set a new value for a parameter.
disable [PARAM] Comment a parameter out.

Options:
-D, --pgdata=PGDATA Specify a PostgreSQL database cluster.
--apply Apply change(s).

--help Print this help.

[postgres@node1 bin]$ ./pt-config -D /usr/local/pg945/data/ get shared_buffers
[2016-01-19 09:46:42] INFO: Reading: /usr/local/pg945/data//postgresql.conf
128MB

[postgres@node1 bin]$ ./pt-config -D /usr/local/pg945/data/ set shared_buffers 512MB
[2016-01-19 09:47:18] INFO: Reading: /usr/local/pg945/data//postgresql.conf
[2016-01-19 09:47:18] INFO: Dry-run mode:
[2016-01-19 09:47:18] INFO: Old: shared_buffers = 128MB # min 128kB
[2016-01-19 09:47:18] INFO: New: shared_buffers = 512MB # min 128kB

[postgres@node1 bin]$ ./pt-config -D /usr/local/pg945/data/ --apply disable shared_buffers
[2016-01-19 09:48:44] INFO: Reading: /usr/local/pg945/data//postgresql.conf
[2016-01-19 09:48:44] INFO: Applying:
[2016-01-19 09:48:44] INFO: Old: shared_buffers = 128MB # min 128kB
[2016-01-19 09:48:44] INFO: New: #shared_buffers = 128MB # min 128kB
[2016-01-19 09:48:44] INFO: Updated: /usr/local/pg945/data//postgresql.conf

[postgres@node1 bin]$ ./pt-index-usage --help

Usage: pt-index-usage [option...]

Options:
-h, --host=HOSTNAME Host name of the postgres server
-p, --port=PORT Port number of the postgres server
-U, --username=USERNAME User name to connect
-d, --dbname=DBNAME Database name to connect

-o, --owner=STRING Owner name
-n, --schema=STRING Schema name
-t, --table=STRING Table name
-i, --index=STRING Index name

--help Print this help.

[postgres@node1 bin]$ ./pt-index-usage /usr/local/pg945/bin/psql -h localhost -p 5432 -U postgres -n public -d postgres
+-------+----------+--------+------------------+-----------------------+-------+--------+--------+--------+--------+--------+--------+------------+
| OID | OWNER | SCHEMA | TABLE | INDEX | BLKS | SCAN | T_READ | T_FTCH | B_READ | B_HIT | STATUS | TABLESPACE |
+-------+----------+--------+------------------+-----------------------+-------+--------+--------+--------+--------+--------+--------+------------+
| 16414 | postgres | public | pgbench_accounts | pgbench_accounts_pkey | 27422 | 149972 | 210520 | 149972 | 74399 | 557402 | | pg_default |
| 16410 | postgres | public | pgbench_branches | pgbench_branches_pkey | 2 | 0 | 0 | 0 | 38 | 112 | | pg_default |
| 16412 | postgres | public | pgbench_tellers | pgbench_tellers_pkey | 7 | 74986 | 75292 | 74986 | 10 | 151488 | | pg_default |
+-------+----------+--------+------------------+-----------------------+-------+--------+--------+--------+--------+--------+--------+------------+

[postgres@node1 bin]$ ./pt-replication-stat --help

Usage: pt-replication-stat [option...] [delay [count]]

Options:
-h, --host=HOSTNAME Host name of the postgres server
-p, --port=PORT Port number of the postgres server
-U, --username=USERNAME User name to connect
-d, --dbname=DBNAME Database name to connect

--help Print this help.

[postgres@node1 bin]$ ./pt-replication-stat -h localhost -p 5432 -U postgres 5 2
Tue Jan 19 09:53:58 CST 2016
+------+-------+---------------+-------+-----------+------------+------------+------------+------------+-----+--------+
| PID | NAME | HOST | PORT | STATE | SENT | WRITTTEN | FLUSHED | REPLAYED | PRI | MODE |
+------+-------+---------------+-------+-----------+------------+------------+------------+------------+-----+--------+
| | | | | local | 0/DA000350 | 0/DA000350 | | | | master |
| 1353 | node2 | 192.168.0.114 | 41205 | streaming | 0/DA000350 | 0/DA000350 | 0/DA000350 | 0/DA000350 | 1 | sync |
+------+-------+---------------+-------+-----------+------------+------------+------------+------------+-----+--------+

Tue Jan 19 09:54:03 CST 2016
+------+-------+---------------+-------+-----------+------------+------------+------------+------------+-----+--------+
| PID | NAME | HOST | PORT | STATE | SENT | WRITTTEN | FLUSHED | REPLAYED | PRI | MODE |
+------+-------+---------------+-------+-----------+------------+------------+------------+------------+-----+--------+
| | | | | local | 0/DA000350 | 0/DA000350 | | | | master |
| 1353 | node2 | 192.168.0.114 | 41205 | streaming | 0/DA000350 | 0/DA000350 | 0/DA000350 | 0/DA000350 | 1 | sync |
+------+-------+---------------+-------+-----------+------------+------------+------------+------------+-----+--------+

[postgres@node1 bin]$ ./pt-proc-stat -D /usr/local/pg945/data/ 10 5
Tue Jan 19 09:57:49 CST 2016
PROCESS NAME[ PID] STAT USR SYS VSZ RSS READ WRITE READ2 WRITE2
postgres[ 1344] S 0 1 256 12 2200 304 6004 -40
logger[ 1345] S 0 0 113 0 0 4 0 -4
checkpointer[ 1347] S 0 0 256 2 0 60 0 -12
writer[ 1348] S 1 2 256 2 0 0 0 0
wal writer[ 1349] S 0 1 256 5 0 32 0 0
autovacuum launcher[ 1350] S 0 0 256 1 0 0 98 0
archiver[ 1351] S 0 0 115 0 0 0 0 0
stats collector[ 1352] S 0 2 115 1 0 876 19 -391
DA000350[ 1353] S 0 1 257 2 0 0 16393 0

Tue Jan 19 09:57:59 CST 2016
PROCESS NAME[ PID] STAT USR SYS VSZ RSS READ WRITE READ2 WRITE2
postgres[ 1344] S 0 0 256 12 0 0 0 0
logger[ 1345] S 0 0 113 0 0 0 0 0
checkpointer[ 1347] S 0 0 256 2 0 0 0 0
writer[ 1348] S 0 0 256 2 0 0 0 0
wal writer[ 1349] S 0 0 256 5 0 0 0 0
autovacuum launcher[ 1350] S 0 0 256 1 0 0 0 0
archiver[ 1351] S 0 0 115 0 0 0 0 0
stats collector[ 1352] S 0 0 115 1 0 0 0 0
DA000350[ 1353] S 0 0 257 2 0 0 0 0

Tue Jan 19 09:58:09 CST 2016
PROCESS NAME[ PID] STAT USR SYS VSZ RSS READ WRITE READ2 WRITE2
postgres[ 1344] S 0 0 256 12 0 0 143 0
logger[ 1345] S 0 0 113 0 0 0 0 0
checkpointer[ 1347] S 0 0 256 2 0 0 0 0
writer[ 1348] S 0 0 256 2 0 0 0 0
wal writer[ 1349] S 0 0 256 5 0 0 0 0
autovacuum launcher[ 1350] S 0 0 256 1 0 0 2 0
archiver[ 1351] S 0 0 115 0 0 0 0 0
stats collector[ 1352] S 0 0 115 1 0 24 0 -10
DA000350[ 1353] S 0 0 257 2 0 0 0 0

Tue Jan 19 09:58:19 CST 2016
PROCESS NAME[ PID] STAT USR SYS VSZ RSS READ WRITE READ2 WRITE2
postgres[ 1344] S 0 0 256 12 0 0 0 0
logger[ 1345] S 0 0 113 0 0 0 0 0
checkpointer[ 1347] S 0 0 256 2 0 0 0 0
writer[ 1348] S 0 0 256 2 0 0 0 0
wal writer[ 1349] S 0 0 256 5 0 0 0 0
autovacuum launcher[ 1350] S 0 0 256 1 0 0 0 0
archiver[ 1351] S 0 0 115 0 0 0 0 0
stats collector[ 1352] S 0 0 115 1 0 0 0 0
DA000350[ 1353] S 0 0 257 2 0 0 0 0

Tue Jan 19 09:58:29 CST 2016
PROCESS NAME[ PID] STAT USR SYS VSZ RSS READ WRITE READ2 WRITE2
postgres[ 1344] S 0 0 256 12 0 0 0 0
logger[ 1345] S 0 0 113 0 0 0 0 0
checkpointer[ 1347] S 0 0 256 2 0 0 0 0
writer[ 1348] S 0 0 256 2 0 0 0 0
wal writer[ 1349] S 0 0 256 5 0 0 0 0
autovacuum launcher[ 1350] S 0 0 256 1 0 0 0 0
archiver[ 1351] S 0 0 115 0 0 0 0 0
stats collector[ 1352] S 0 0 115 1 0 0 0 0
DA000350[ 1353] S 0 0 257 2 0 0 0 0

[postgres@node1 bin]$ ./pt-table-usage -d postgres
+-------+----------+--------+------------------+--------+-------+----------+----------+-------+-------+--------+--------+---------------------+---------------------+------------+
| OID | OWNER | SCHEMA | TABLE | BLKS | SCAN | T_READ | T_INS | T_UPD | T_DEL | B_READ | B_HIT | VACUUMED | ANALYZED | TABLESPACE |
+-------+----------+--------+------------------+--------+-------+----------+----------+-------+-------+--------+--------+---------------------+---------------------+------------+
| 16403 | postgres | public | pgbench_accounts | 164936 | 1 | 10000000 | 10000000 | 74986 | 0 | 597553 | 557725 | 2016-01-18 15:27:08 | 2016-01-18 15:27:08 | pg_default |
| 16406 | postgres | public | pgbench_branches | 2 | 79234 | 7498700 | 100 | 74984 | 0 | 127 | 237473 | 2016-01-18 16:03:26 | 2016-01-18 16:03:26 | pg_default |
| 16397 | postgres | public | pgbench_history | 374 | 0 | 0 | 74983 | 0 | 0 | 3732 | 76579 | 2016-01-18 15:27:10 | 2016-01-18 16:03:23 | pg_default |
| 16400 | postgres | public | pgbench_tellers | 16 | 1 | 1000 | 1000 | 74986 | 0 | 129 | 155327 | 2016-01-18 16:03:25 | 2016-01-18 16:03:25 | pg_default |
+-------+----------+--------+------------------+--------+-------+----------+----------+-------+-------+--------+--------+---------------------+---------------------+------------+

[postgres@node1 bin]$ ./pt-tablespace-usage -d postgres
+------------+-----------+-----------+
| TABLESPACE | DBNAME | SIZE (MB) |
+------------+-----------+-----------+
| pg_default | postgres | 1512 |
| pg_default | template1 | 6 |
| pg_global | | 1 |
+------------+-----------+-----------+

pt-snap-statements:requirement

postgresql.conf

shared_preload_libraries = 'pg_stat_statements'

pg_stat_statements.max = 10000
pg_stat_statements.track = all

track_io_timing = on

[postgres@node1 bin]$ ./pt-snap-statements -d postgres 5
+----------+----------+----------+--------------------------------+-------+--------+------+-------+--------+--------+--------+---------+--------+
| USER | DBNAME | QUERYID | QUERY | CALLS | T_TIME | ROWS | B_HIT | B_READ | B_DIRT | B_WRTN | R_TIME | W_TIME |
+----------+----------+----------+--------------------------------+-------+--------+------+-------+--------+--------+--------+---------+--------+
| postgres | postgres | d0679a75 | UPDATE pgbench_accounts SET ab | 246 | 19354 | 246 | 1604 | 504 | 392 | 1 | 19324.8 | 0.0 |
| postgres | postgres | 67ecc2d2 | UPDATE pgbench_branches SET bb | 246 | 1202 | 246 | 834 | 3 | 2 | 0 | 0.0 | 0.0 |
| postgres | postgres | d348561c | UPDATE pgbench_tellers SET tba | 246 | 5 | 246 | 985 | 0 | 0 | 0 | 0.0 | 0.0 |
| postgres | postgres | fa9b0052 | SELECT abalance FROM pgbench_a | 246 | 4 | 246 | 1131 | 0 | 0 | 0 | 0.0 | 0.0 |
| postgres | postgres | db71f8b2 | INSERT INTO pgbench_history (t | 246 | 3 | 246 | 246 | 0 | 0 | 0 | 0.0 | 0.0 |
| postgres | postgres | d4e6bf94 | BEGIN; | 250 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 0.0 |
| postgres | postgres | a81672e | END; | 246 | 0 | 0 | 0 | 0 | 0 | 0 | 0.0 | 0.0 |
+----------+----------+----------+--------------------------------+-------+--------+------+-------+--------+--------+--------+---------+--------+

pt-stat-snapshot

[postgres@node1 bin]$ ./pt-stat-snapshot --help

Usage: pt-stat-snapshot [option...] install
pt-stat-snapshot [option...] create [level]
pt-stat-snapshot [option...] list
pt-stat-snapshot [option...] delete [sid]
pt-stat-snapshot [option...] export [file]
pt-stat-snapshot [option...] import [file]
pt-stat-snapshot [option...] uninstall

Options:
-h, --host=HOSTNAME Host name of the postgres server
-p, --port=PORT Port number of the postgres server
-U, --username=USERNAME User name to connect
-d, --dbname=DBNAME Database name to connect

--help Print this help.

[postgres@node1 bin]$ ./pt-stat-snapshot -h localhost -U postgres -d postgres install
[2016-01-19 10:29:41] INFO: Succeeded to install pgperf snapshot.

[postgres@node1 bin]$ ./pt-stat-snapshot -h localhost -U postgres -d postgres create 4
[2016-01-19 10:35:56] INFO: Succeeded to take a snapshot.

[postgres@node1 bin]$ ./pt-stat-snapshot -h localhost -U postgres -d postgres list
+-----+---------------------+-------+
| SID | TIMESTAMP | LEVEL |
+-----+---------------------+-------+
| 0 | 2016-01-19 10:32:00 | 4 |
+-----+---------------------+-------+

[postgres@node1 bin]$ ./pt-stat-snapshot -h localhost -U postgres -d postgres uninstall
[2016-01-19 10:38:03] INFO: Succeeded to uninstall pgperf snapshot.

pt-xact-stat

[postgres@node1 bin]$ ./pt-xact-stat --host-list 192.168.0.113:5432,192.168.0.114:5432 -d postgres 5 2
Tue Jan 19 10:44:01 CST 2016
+---------------+------+----------+------+---------+-----------+---------+---------+
| HOST | PORT | DBNAME | CONN | COMMITS | ROLLBACKS | B_READ | B_HIT |
+---------------+------+----------+------+---------+-----------+---------+---------+
| 192.168.0.113 | 5432 | postgres | 11 | 102180 | 11 | 1091476 | 2571606 |
| 192.168.0.114 | 5432 | postgres | 1 | 5 | 0 | 81 | 1158 |
+---------------+------+----------+------+---------+-----------+---------+---------+

Tue Jan 19 10:44:06 CST 2016
+---------------+------+----------+------+---------+-----------+---------+---------+
| HOST | PORT | DBNAME | CONN | COMMITS | ROLLBACKS | B_READ | B_HIT |
+---------------+------+----------+------+---------+-----------+---------+---------+
| 192.168.0.113 | 5432 | postgres | 11 | 102955 | 11 | 1093119 | 2586571 |
| 192.168.0.114 | 5432 | postgres | 1 | 7 | 0 | 81 | 1345 |
+---------------+------+----------+------+---------+-----------+---------+---------+

sourcecode :https://github.com/uptimejp/postgres-toolkit

document :http://postgres-toolkit.readthedocs.org/