SELECT user, pid, client_addr, query, query_start, NOW() - query_start AS elapsed
FROM pg_stat_activity
WHERE query != ''
-- AND EXTRACT(EPOCH FROM (NOW() - query_start)) > 1
ORDER BY elapsed DESC;
psql:
SELECT pg_size_pretty(pg_database_size(pg_database.datname)) AS size_in_mb,
pg_database.datname as database_name
FROM pg_database ORDER BY pg_database_size(pg_database.datname) DESC;
With index use: pg_total_relation_size, insead of pg_database_size
size_in_mb | database_name
------------+---------------
7571 kB | template1
7499 kB | postgres
7345 kB | template0
(3 rows)
tags:_grokparsefailure
echo stats | nc 127.0.0.1 11211 | grep accept
STAT accepting_conns 1
or
strace -e read,write -fp $(pgrep memcached)
---
- hosts: 127.0.0.1
user: root
tasks:
- group: name=mygroup state=present
- name: Add user to mygroup
user: name=myuser groups=mygroup append=yes
- name: Setup authorized key
authorized_key:
user: myuser
state: present
key: "{{ lookup('file', 'myuser_key.pub') }}"
- name: Allow mygroup group to have passwordless sudo
lineinfile:
dest: /etc/sudoers
state: present
regexp: '^%mygroup'
line: '%mygroup ALL=(ALL) NOPASSWD: ALL
---
- hosts: 127.0.0.1
user: root
tasks:
- name: Remove myuser from mygoup
become: true
command: "gpasswd -d myuser mygroup"
register: command_result
changed_when: "not 'is not a member of' in command_result.stderr"
failed_when: "'does not exist in /etc/group' in command_result.stderr"