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FleshgrinderFleshgrinder
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Added purge script and changed license.
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‎.editorconfig

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# editorconfig.org
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root = true
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[*]
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charset = utf-8
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end_of_line = lf
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indent_size = 4
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indent_style = space
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insert_final_newline = true
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tab_width = 8
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trim_trailing_whitespace = true
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[*.md]
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trim_trailing_whitespace = false

‎.gitattributes

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* text=auto eol=lf

‎.gitignore

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.idea

‎LICENSE

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This file was deleted.

‎README.md

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# mysql
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This is my personal MariaDB 5.5 configuration on my Debian “Squeeze” 6 servers.
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## Installing MariaDB
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I'm using the [switch.ch mirror](http://www.switch.ch/) in my `sources.list`:
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```shell
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# Add mirror.switch.ch to the sources.list
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echo '# MariaDB 5.5
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deb http://mirror.switch.ch/mirror/mariadb/repo/5.5/debian squeeze main
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deb-src http://mirror.switch.ch/mirror/mariadb/repo/5.5/debian squeeze main' >> /etc/apt/sources.list
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# Fetch the GPG key for MariaDB releases
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apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xcbcb082a1bb943db
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# Update the preferences
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echo '# /etc/apt/preferences
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Package: *
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Pin: Origin mirror.switch.ch
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Pin-Priority: 900
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Package: *
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Pin: release o=Debian,a=stable
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Pin-Priority: 500
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Package: *
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Pin: release o=Debian
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Pin-Priority: -1' > /etc/apt/preferences
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# Update apt / aptitude
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aptitude update
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# Create the user for the mysql daemon
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adduser --no-create-home --disabled-password --disabled-login mysqld
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# Install MariaDB
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aptitude install mariadb-server-5.5
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```
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Have a look at the [MariaDB repository configuration tool](http://downloads.mariadb.org/MariaDB/repositories/) to find a repository near your server.
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## Hugepages
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My configuration relies on hugepages support. You can use the configuration without it, the server will work, but it will log an error.
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### Activating hugepages
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```shell
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# Create backup of default system configuration
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sysctl -a > ~/sysctl_defaults.conf
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# Create configuration for hugepages
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echo '
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# Activate Hugepages support. Set the number of pages to be used.
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# Each page is normally 2MB, so a value of 256 = 512MB.
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# Set it to e.g. 512 or higher if you have lots of memory.
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vm.nr_hugepages = 256
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# Set the group number that is allowed to access this memory.
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vm.hugetlb_shm_group = 1004
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# Increase the amount of shmem allowed per segment. This depends
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# on the total memory our system actually has.
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# Value is given in bytes (536870912 = 512MB).
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kernel.shmmax = 536870912
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# Increase total amount of shared memory.
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# This should be 50% of available RAM.
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# Value is given in bytes (805306368 = 768MB).
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kernel.shmall = 805306368' > ~/hugepages.conf
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# Apply settings
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sysctl -p ~/hugepages.conf
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```
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## Create new init script
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In order to be able to use the hugepages you have to raise the ulimit for the mysqld user. I included a shell script which creates that new init script for you.
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```shell
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# Change to the cloned github repo
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cd /path/to/the/cloned/github/repo
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# Make the shell script executable
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chmod 770 create-mariadb-init-script.sh
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# And simply execute it
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./create-mariadb-init-script.sh
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```
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Afterwards you can start/restart/stop your MariaDB server via `/etc/init.d/mariadb`.
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## Questions?
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Please bare in mind that this is an advanced configuration targeted towards user who have experience in administrating a server. But if you have any questions feel free to open an issue in the wiki of this repo.
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# mysql
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This is my personal MariaDB 5.5 configuration on my Debian �Squeeze� 6 servers.
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## Installing MariaDB
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I'm using the [switch.ch mirror](http://www.switch.ch/) in my `sources.list`:
6+
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```shell
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# Add mirror.switch.ch to the sources.list
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echo '# MariaDB 5.5
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deb http://mirror.switch.ch/mirror/mariadb/repo/5.5/debian squeeze main
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deb-src http://mirror.switch.ch/mirror/mariadb/repo/5.5/debian squeeze main' >> /etc/apt/sources.list
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# Fetch the GPG key for MariaDB releases
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apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xcbcb082a1bb943db
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# Update the preferences
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echo '# /etc/apt/preferences
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Package: *
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Pin: Origin mirror.switch.ch
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Pin-Priority: 900
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Package: *
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Pin: release o=Debian,a=stable
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Pin-Priority: 500
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Package: *
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Pin: release o=Debian
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Pin-Priority: -1' > /etc/apt/preferences
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# Update apt / aptitude
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aptitude update
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# Create the user for the mysql daemon
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adduser --no-create-home --disabled-password --disabled-login mysqld
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# Install MariaDB
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aptitude install mariadb-server-5.5
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```
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Have a look at the [MariaDB repository configuration tool](http://downloads.mariadb.org/MariaDB/repositories/) to find a
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repository near your server.
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## Hugepages
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My configuration relies on hugepages support. You can use the configuration without it, the server will work, but it
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will log an error.
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### Activating hugepages
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```shell
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# Create backup of default system configuration
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sysctl -a > ~/sysctl_defaults.conf
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# Create configuration for hugepages
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echo '
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# Activate Hugepages support. Set the number of pages to be used.
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# Each page is normally 2MB, so a value of 256 = 512MB.
50+
# Set it to e.g. 512 or higher if you have lots of memory.
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vm.nr_hugepages = 256
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# Set the group number that is allowed to access this memory.
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vm.hugetlb_shm_group = 1004
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# Increase the amount of shmem allowed per segment. This depends
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# on the total memory our system actually has.
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# Value is given in bytes (536870912 = 512MB).
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kernel.shmmax = 536870912
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# Increase total amount of shared memory.
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# This should be 50% of available RAM.
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# Value is given in bytes (805306368 = 768MB).
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kernel.shmall = 805306368' > ~/hugepages.conf
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# Apply settings
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sysctl -p ~/hugepages.conf
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```
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## Create new init script
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In order to be able to use the hugepages you have to raise the ulimit for the mysqld user. I included a shell script
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which creates that new init script for you.
72+
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```shell
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# Change to the cloned github repo
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cd /path/to/the/cloned/github/repo
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# Make the shell script executable
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chmod 770 create-mariadb-init-script.sh
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# And simply execute it
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./create-mariadb-init-script.sh
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```
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Afterwards you can start/restart/stop your MariaDB server via `/etc/init.d/mariadb`.
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## Questions?
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Please bare in mind that this is an advanced configuration targeted towards user who have experience in administrating a
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server. But if you have any questions feel free to open an issue in the wiki of this repo.
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## License
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> This is free and unencumbered software released into the public domain.
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>
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> For more information, please refer to <http://unlicense.org>

‎UNLICENSE

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This is free and unencumbered software released into the public domain.
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Anyone is free to copy, modify, publish, use, compile, sell, or
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distribute this software, either in source code form or as a compiled
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binary, for any purpose, commercial or non-commercial, and by any
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means.
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In jurisdictions that recognize copyright laws, the author or authors
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of this software dedicate any and all copyright interest in the
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software to the public domain. We make this dedication for the benefit
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of the public at large and to the detriment of our heirs and
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successors. We intend this dedication to be an overt act of
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relinquishment in perpetuity of all present and future rights to this
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software under copyright law.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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For more information, please refer to <http://unlicense.org>
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‎create-mariadb-init-script.sh

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#!/bin/bash
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# ----------------------------------------------------------------------
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# Create new init script for MariaDB after hugepages have been activated.
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# This init script raises the limit for shared memory to unlimited.
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# Otherwise the MariaDB process is not able to lock the hugepages for
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# itself. After raising the limit the normal init script is called. We
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# create a separate init script to not break the normal apt / aptitude
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# upgrade process of MariaDB (which includes the normal mysql init
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# script)!
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#
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# ----------------------------------------------------------------------
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#
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# DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
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# Version 2, December 2004
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#
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# Copyright (c) 2012 Richard Fussenegger <[email protected]>
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#
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# Everyone is permitted to copy and distribute verbatim or modified
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# copies of this license document, and changing it is allowed as long
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# as the name is changed.
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#
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# DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
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# TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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#
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# 0. You just DO WHAT THE FUCK YOU WANT TO.
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#
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# ----------------------------------------------------------------------
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# Tell the user that we are goin to create a new init script
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echo 'Creating new MariaDB inti script at /etc/init.d/mariadb'
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# Create the actual init script
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echo '#!/bin/bash
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#
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### BEGIN INIT INFO
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# Provides: MariaDB
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# Required-Start: $remote_fs $syslog
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# Required-Stop: $remote_fs $syslog
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# Should-Start: $network $named $time
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# Should-Stop: $network $named $time
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: Start and stop the MariaDB database server daemon
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# Description: Controls the main MariaDB database server daemon "mysqld"
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# and its wrapper script "mysqld_safe".
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### END INIT INFO
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ulimit -l unlimited
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sh /etc/init.d/mysql "${1:-'\'''\''}"' > /etc/init.d/mariadb
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# Change permissions so it is executable
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chmod 770 /etc/init.d/mariadb
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# Remove the old init script from the system startup
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update-rc.d -f mysql remove
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# Add our new init script to the system startup
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update-rc.d mariadb defaults
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# Tell the user that we are done
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echo 'New init script created and added to system startup. DONE!'
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#!/bin/sh
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# ------------------------------------------------------------------------------
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# This is free and unencumbered software released into the public domain.
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#
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# Anyone is free to copy, modify, publish, use, compile, sell, or distribute
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# this software, either in source code form or as a compiled binary, for any
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# purpose, commercial or non-commercial, and by any means.
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#
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# In jurisdictions that recognize copyright laws, the author or authors of this
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# software dedicate any and all copyright interest in the software to the
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# public domain. We make this dedication for the benefit of the public at large
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# and to the detriment of our heirs and successors. We intend this dedication
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# to be an overt act of relinquishment in perpetuity of all present and future
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# rights to this software under copyright law.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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# For more information, please refer to <http://unlicense.org>
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# ------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------
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# Create new init script for MariaDB after hugepages have been activated.
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#
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# This init script raises the limit for shared memory to unlimited. Otherwise
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# the MariaDB process is not able to lock the hugepages for itself. After
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# raising the limit the normal init script is called. We create a separate init
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# script to not break the normal apt / aptitude upgrade process of MariaDB
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# (which includes the normal mysql init script)!
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#
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# AUTHOR: Richard Fussenegger <[email protected]>
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# COPYRIGHT: 2015 Richard Fussenegger
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# LICENSE: http://unlicense.org/ PD
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# ------------------------------------------------------------------------------
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# Tell the user that we are goin to create a new init script
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printf -- 'Creating new MariaDB inti script at /etc/init.d/mariadb'
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# Create the actual init script
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cat > /etc/init.d/mariadb << EOT
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#!/bin/sh
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### BEGIN INIT INFO
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# Provides: MariaDB
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# Required-Start: $remote_fs $syslog
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# Required-Stop: $remote_fs $syslog
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# Should-Start: $network $named $time
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# Should-Stop: $network $named $time
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: Start and stop the MariaDB database server daemon
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# Description: Controls the main MariaDB database server daemon "mysqld"
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# and its wrapper script "mysqld_safe".
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### END INIT INFO
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ulimit -l unlimited
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sh /etc/init.d/mysql "${1:-'\'''\''}"
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EOT
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# Change permissions so it is executable
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chmod -- 755 /etc/init.d/mariadb
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# Remove the old init script from the system startup
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update-rc.d -f mysql remove
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# Add our new init script to the system startup
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update-rc.d mariadb defaults
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# Tell the user that we are done
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printf -- '[ok] New init script created and added to system startup.'

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