iamcaleberic

• Select aurora cluster
• Create a reader making sure all the options are correct and they are in the same db parameter group
• Make sure the reader completes setup and the replica lag is withing acceptable range 13 - 20 ms
• Set the highest failover priority for the reader after its completely setup usually failover-0
• Make sure there are no pending changes
• Select writer and select failover and accept prompts
• Wait for the failover process to complete (30 - 60 seconds)
• You should have the reader promoted to a writer

Reference:

iamcaleberic

• Compile node-sass for your current platform

        git clone --recursive https://github.com/sass/node-sass.git
       cd node-sass
        npm install
        JOBS=max node scripts/build -f
    
  

iamcaleberic

    # Every standard HTTP code mapped to the appropriate message.
    # Generated with:
    #   curl -s https://www.iana.org/assignments/http-status-codes/http-status-codes-1.csv | \
    #     ruby -ne 'm = /^(\d{3}),(?!Unassigned|\(Unused\))([^,]+)/.match($_) and \
    #               puts "#{m[1]} => \x27#{m[2].strip}\x27,"'
    HTTP_STATUS_CODES = {
      100 => 'Continue',
      101 => 'Switching Protocols',
      102 => 'Processing',

iamcaleberic

Blacklisting a kernel module

• Some modules are loaded as part of the initramfs. mkinitcpio -M will print out all automatically detected modules: to prevent the initramfs from loading some of those modules, blacklist them in /etc/modprobe.d/modprobe.conf

• Running mkinitcpio -v will list all modules pulled in by the various hooks:

mkinitcpio -v

iamcaleberic

Docker deleting all containers and/or images

Warning: This will destroy all your images and containers. It will not be possible to restore them!

Deleting all containers

docker rm $(docker ps -a -q)

Deleting all images

docker rmi $(docker images -q)

script

iamcaleberic

• Compile node-sass for your current platform

        git clone --recursive https://github.com/sass/node-sass.git
       cd node-sass
        npm install
        JOBS=max node scripts/build -f
    
  

• Do a recursive copy of your compile binary to frsh-dsk/node_modules

iamcaleberic

Enabling Pulse Audio Equaliser Arch Linux

• Install the pulseaudio package.

   $ pacman -S pulseaudio
  

• Install control module and equlizer

   $ pacman -S pulseaudio-equalizer pavucontrol
  

• Install gst-plugins-good if your intended program has a legacy GStreamer implementation.

iamcaleberic

• STEAM_RUNTIME_PREFER_HOST_LIBRARIES=0 STEAM_RUNTIME=1 steam-runtime

Alien Isolation

• Set startup options to

iamcaleberic

So when building arrayfire on Arch you kind of run into the error below if the default gcc version is more than 6.0.0

Make Error: NVCC does not support GCC version 6.0 or greater.

So here is a hack that might help you fix that particular snag.

• Make sure you intall an alternate version of gcc that is < 6 but > 4.3 in this case gcc-5

• Make sure you are in the arrayfire directory

iamcaleberic

• Ensure that you have OpenJDK 8 installed on your system.

  • You can check this by running

          which javac 
    

• if output is which: no javac Install OpenJDK 8 by running the command