Подробности

Автор: Kirill

compress

compresscmd xz

compressoptions -9

---------------

 compress manually:

--verbose  show progress

 To reduce system load:

/etc/cron.daily/logrotate from:

    /usr/sbin/logrotate /etc/logrotate.conf

to:

    nice -n 19 ionice -c3 /usr/sbin/logrotate /etc/logrotate.conf

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=652600

-M xz option sets memory limit, please check man, for example 32M is required for -3 compression option, for example :

compressoptions -3 -M 128M

also cpulimit may be useful:

cpulimit -l 20

sets cpu usage to 20%

for example:

cpulimit -l 20 nice -n 19 ionice -c3 /usr/sbin/logrotate /etc/logrotate.conf

https://uk.ubunlog.com/cpulimit-%D0%BE%D0%B1%D0%BC%D0%B5%D0%B6%D1%83%D1%94-%D0%BF%D1%80%D0%BE%D1%86%D0%B5%D1%81-%D0%BF%D1%80%D0%BE%D1%86%D0%B5%D1%81%D0%BE%D1%80%D0%B0/

Подробности

Автор: Kirill

• bash
• graphite
• awk

#!/bin/sh

#set -x
required_free_percentage=93

percent_free=`df -h | grep /dev/mapper/data-graphite | awk '{print $5}' | sed 's/%//'`

echo ${percent_free}

i=365

while [ ${percent_free} -gt ${required_free_percentage} ]
do
#echo ${i}
find /var/lib/carbon/whisper/ -type f -mtime +${i}  | xargs -n1 -r rm
percent_free=`df -h | grep /dev/mapper/data-graphite | awk '{print $5}' | sed 's/%//'`
#echo ${percent_free}
i=$(( $i -1 ))
done

Подробности

Автор: Kirill

• ansible
• lvm

$ cat lvm-playbook.yml
---
 - hosts: all
   become: yes
   tasks:

   - name: Create Volume Group
     lvg:
       vg: "{{ vg_name }}"
       pvs: "{{ pvs }}"

   - name: Create Logical Volume
     lvol:
       vg: "{{ vg_name }}"
       lv: "{{ lv_name }}"
       size: "{{ lv_size }}"

  - name: Creafe File System
    filesystem:
      fstype: ext4
      dev: "/dev/{{ vg_name }}/{{ lv_name }}"

  - name: Mount Logical volume FS
    mount:
      name: "/{{ mount_name }}"
      src: "/dev/{{ vg_name }}/{{ lv_name }}"
      fstype: ext4
      state: mounted

$ cat inventory.ini
127.0.0.1:22222 ansible_user=gigauser pvs=/dev/sdb vg_name=vgname1 lv_name=lv_name1 lv_size=50M mount_name=vgmount

$ ansible-playbook -i inventory.ini lvm-playbook.yml --ask-become-pass

Подробности

Автор: Kirill

• bash
• gitlab

# sudo -u gitlab-psql /opt/gitlab/embedded/bin/psql -h /var/opt/gitlab/postgresql -d gitlabhq_production

or

# gitlab-rails dbconsole --database main

gitlabhq_production=# insert into users (name, username, email, notification_email, projects_limit, state, created_at, confirmed_at) values ('Name Surname', 'userlogin', Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.', Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.', 10000, active, '2021-04-16 03:30:30.000000', '2021-04-16 03:31:30.000000');

 After that password can be restored via password recovery procedure.

Set user admin permissions:

gitlabhq_production=# UPDATE users SET admin = 't' WHERE email like Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.';

Links:

https://docs.gitlab.com/ee/security/reset_user_password.html