Tmpfs Tools Log2ram: Difference between revisions

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m Text replacement - "I/O Monitoring and Analyze" to "Linux I/O Monitoring and Analyze"
 
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<noinclude>{{ContentArticleHeader/Linux_Server|toc=off}}{{ContentArticleHeader/Linux_Desktop}}</noinclude>
<noinclude>{{ContentArticleHeader/Linux_Server|toc=off}}{{ContentArticleHeader/Linux_Desktop}}</noinclude>
Here I'm trying to use log2ram in order to minimize disk write (caused by brave browser session storage) on a desktop system.
{{collapse/begin}}
 
== Identify the Problem ==
== Install ==
{{collapse/div|#Preparation details}}
Identify which directories has high [[Linux I/O Monitoring and Analyze|I/O rate]] by the following command.<syntaxhighlight lang="shell" line="1" class="force-prompt">
sudo watch -d -n 1 "find /var -type f -size +80k -mmin -10 -printf '%-30s \t %t %p\n'"
</syntaxhighlight>Check the current size of the identified directories.<syntaxhighlight lang="shell" line="1" class="force-prompt">
du -hs /var/log
</syntaxhighlight>Take a statistic for the average disk write per minute before the setup.<syntaxhighlight lang="shell" line="1" class="force-prompt">
iostat -h /dev/nvme0n1 -d 60 -t
</syntaxhighlight>
{{collapse/end}}
== Install log2ram ==
<syntaxhighlight lang="shell" line="1" class="force-prompt">
<syntaxhighlight lang="shell" line="1" class="force-prompt">
echo "deb [signed-by=/usr/share/keyrings/azlux-archive-keyring.gpg] http://packages.azlux.fr/debian/ bullseye main" | sudo tee /etc/apt/sources.list.d/azlux.list
echo "deb [signed-by=/usr/share/keyrings/azlux-archive-keyring.gpg] http://packages.azlux.fr/debian/ bullseye main" | sudo tee /etc/apt/sources.list.d/azlux.list
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</syntaxhighlight>
</syntaxhighlight>


== Setup ==
== Setup log2ram ==
<syntaxhighlight lang="shell" line="1" class="force-prompt">
sudo nano /etc/log2ram.conf
</syntaxhighlight><syntaxhighlight lang="bash" line="1">
SIZE=2G
MAIL=true
PATH_DISK="/var/log"
ZL2R=false
COMP_ALG=lz4
LOG_DISK_SIZE=100M
 
</syntaxhighlight>Modify the default systemd timer unit, if you want to log more or less frequently than one time per day.<syntaxhighlight lang="shell" line="1" class="force-prompt">
sudo systemctl edit log2ram-daily.timer
</syntaxhighlight>Reboot the system. After the reboot check [https://github.com/azlux/log2ram#is-it-working does it working] and use the <code>iostat</code> command to take a new statistic.


== References ==
== References ==


* GitHub: [https://github.com/azlux/log2ram log2ram]
* Linuxhowto.net: [https://www.linuxhowto.net/how-to-write-log-files-in-ram-using-log2ram-in-linux/ Write Log Files In RAM Using Log2ram In Linux]<br />


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  | Прндл1 = Linux Desktop
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  | Стадий = 3
  | Стадий = 6
  | Фаза  = Разработване
  | Фаза  = Утвърждаване
  | Статус = Разработван
  | Статус = Утвърден
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  | ИдтДт  = 31.08.2022
  | ИдтДт  = 31.08.2022
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  | РзбДт = 31.08.2022
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Latest revision as of 09:18, 3 September 2022

Lin­ux Serv­er
Lin­ux Desk­top

Iden­ti­fy the Prob­lem

#Prepa­ra­tion de­tails
Iden­ti­fy which di­rec­to­ries has high I/O rate by the fol­low­ing com­mand.
sudo watch -d -n 1 "find /var -type f -size +80k -mmin -10 -printf '%-30s \t %t %p\n'"
Check the cur­rent size of the iden­ti­fied di­rec­to­ries.
du -hs /var/log
Take a sta­tis­tic for the av­er­age disk write per minute be­fore the set­up.
iostat -h /dev/nvme0n1 -d 60 -t

In­stall log2ram

echo "deb [signed-by=/usr/share/keyrings/azlux-archive-keyring.gpg] http://packages.azlux.fr/debian/ bullseye main" | sudo tee /etc/apt/sources.list.d/azlux.list
sudo wget -O /usr/share/keyrings/azlux-archive-keyring.gpg  https://azlux.fr/repo.gpg
sudo apt update
sudo apt install log2ram

Set­up log2ram

sudo nano /etc/log2ram.conf

SIZE=2G
MAIL=true
PATH_DISK="/var/log"
ZL2R=false
COMP_ALG=lz4
LOG_DISK_SIZE=100M

Mod­i­fy the de­fault sys­temd timer unit, if you want to log more or less fre­quent­ly than one time per day.

sudo systemctl edit log2ram-daily.timer

Re­boot the sys­tem. Af­ter the re­boot check does it work­ing and use the io­stat com­mand to take a new sta­tis­tic.

Ref­er­ences


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