PostgreSQL pg_top pgcenter - 實時top類工具

背景

PostgreSQL 的統計資訊、實時會話資訊、作業系統狀态資訊等彙總，統計，展示。

https://www.postgresql.org/docs/devel/static/monitoring-stats.html 1 pgcenter https://github.com/lesovsky/pgcenter

Command-line admin tool for observing and troubleshooting Postgres.

wget

https://github.com/lesovsky/pgcenter/releases/download/v0.5.0/pgcenter.linux-amd64.tar.gz

pgCenter is a command line admin tool for PostgreSQL.

Usage:

pgcenter [flags]

pgcenter [command] [command-flags] [args]

Available commands:

config configures Postgres to work with pgcenter

record record stats to file

report make report based on previously saved statistics

top top-like stats viewer

Flags:

-?, --help show this help and exit

--version         show version information and exit  
           

Use "pgcenter [command] --help" for more information about a command.

Report bugs to

https://github.com/lesovsky/pgcenter/issues

./pgcenter -p 1921 top

2 pg_top

https://git.postgresql.org/gitweb/?p=pg_top.git;a=shortlog;h=refs/heads/master

pg_top  
                                                     Version 3.7.0  

                                                       Mark Wong  
                                            and a cast of ... a few  
           

pg_top is 'top' for PostgreSQL. It is derived from Unix Top. Similar to top,

pg_top allows you to monitor PostgreSQL processes. It also allows you to:

* View currently running SQL statement of a process.  
* View query plan of a currently running SELECT statement.  
* View locks held by a process.  
* View user table statistics.  
* View user index statistics.  
           

CAVEAT: version 3 of pg_top has internal commands that kill and renice

1. Although I have taken steps to insure that pg_top makes
2. checks with these commands, I cannot guarantee that these

internal commands are totally secure. IF YOU INSTALL pg_top SET-USER-ID

TO ROOT, YOU DO SO AT YOUR OWN RISK! I realize that some operating

systems will require pg_top to run setuid root, and I will do everything

I can to make sure that pg_top is a secure setuid program.

To compile and install "pg_top", read the file "INSTALL" and follow the

directions and advice contained therein.

If you make any kind of change to "pg_top" that you feel would be

beneficial to others who use this program, or if you find and fix a bug,

please send the change to the pg_top mailing list.

In order to monitor a remote database, the pg_proctab extension needs to be

created on the database to be monitored. Any operating system that pg_proctab

supports can be monitored remotely on any operating system. See details for

pg_protab here:

http://pgxn.org/dist/pg_proctab/

Be sure to read the FAQ enclosed with the distrubution. It contains

answers to the most commonly asked questions about the configuration,

installation, and operation of pg_top.

AVAILABILITY

Project home page:

http://ptop.projects.postgresql.org/

If you have git, you can download the source code:

git clone git://git.postgresql.org/git/pg_top.git

GRATITUDE

Selena Deckelmann & Gabrielle Roth, and the beer & free wi-fi at County Cork

pub in Portland, OR, USA.

LICENSE

pg_top is distributed free of charge under the same terms as the BSD

1. For an official statement, please refer to the file "LICENSE"
2. should be included with the source distribution.

AUTHOR

Mark Wong

yum install -y cmake3

su - postgres

tar -zxvf pg_top-72088ce.tar.gz

cd pg_top-72088ce

alias cmake=cmake3

cmake -DDESTDIR=/var/lib/pgsql/pg_top

make install

pg_top monitors a PostgreSQL database cluster.

pg_top [OPTION]... [NUMBER]

Options:

-b, --batch use batch mode

-c, --show-command display command name of each process

-C, --color-mode turn off color mode

-i, --interactive use interactive mode

-I, --hide-idle hide idle processes

-n, --non-interactive use non-interactive mode

-o, --order-field=FIELD select sort order

-q, --quick-mode modify schedule priority

usable only by root             

-r, --remote-mode activate remote mode

-s, --set-delay=SECOND set delay between screen updates

-T, --show-tags show color tags

-u, --show-uid show UID instead of username

-V, --version output version information, then exit

-x, --set-display=COUNT set maximum number of displays

exit once this number is reached             

-z, --show-username=NAME display only processes owned by given

username             

-?, --help show this help, then exit

Connection options:

-d, --dbname=DBNAME database to connect to

-h, --host=HOSTNAME database server host or socket directory

-p, --port=PORT database server port

-U, --username=USERNAME user name to connect as

-W, --password force password prompt

參考

man pg_top/share/man/man1/pg_top.1

轉自阿裡雲德哥