Jekyll2026-03-17T19:30:19+00:00https://adrian.ng/feed.xmlHomeThis is the website of __Adrian Ng__. _My_ website. Here you will see examples of my _Java projects_ and my notes on writing _SQL_Adrian Ngcontact@adrian.ngFitness Dashboard (dev)2020-04-07T00:00:00+00:002020-04-07T00:00:00+00:00https://adrian.ng/fitness-dev ]]>Adrian Ngcontact@adrian.ngFitness Dashboard2020-04-05T00:00:00+00:002020-04-05T00:00:00+00:00https://adrian.ng/fitness-dashboard ]]>Adrian Ngcontact@adrian.ngHBase2019-03-17T00:00:00+00:002019-03-17T00:00:00+00:00https://adrian.ng/notes/hbaseHBase is installed here: 
/usr/local/hbase/

Config files:

/usr/local/hbase/config

Binaries:

/usr/local/hbase/bin

Start/Stop HBase:

/usr/local/hbase/bin$ ./start-hbase.sh
/usr/local/hbase/bin$ ./stop-hbase.sh

HBase files in HDFS:

hadoop fs -ls ../../hbase

Found 10 items
drwxr-xr-x   - hduser supergroup          0 2019-03-17 11:51 ../../hbase/.tmp
drwxr-xr-x   - hduser supergroup          0 2019-03-17 11:51 ../../hbase/MasterProcWALs
drwxr-xr-x   - hduser supergroup          0 2019-03-17 11:51 ../../hbase/WALs
drwxr-xr-x   - hduser supergroup          0 2019-03-17 11:53 ../../hbase/archive
drwxr-xr-x   - hduser supergroup          0 2019-03-17 11:50 ../../hbase/corrupt
drwxr-xr-x   - hduser supergroup          0 2019-03-17 00:21 ../../hbase/data
drwxr-xr-x   - hduser supergroup          0 2019-03-17 00:21 ../../hbase/hbase
-rw-r--r--   1 hduser supergroup         42 2019-03-17 00:21 ../../hbase/hbase.id
-rw-r--r--   1 hduser supergroup          7 2019-03-17 00:21 ../../hbase/hbase.version
drwxr-xr-x   - hduser supergroup          0 2019-03-17 11:52 ../../hbase/oldWALs

HBase Web UI

localhost:16010

Start HBase shell:

/usr/local/hbase/bin$ ./hbase shell
]]>Adrian Ngcontact@adrian.ngGit2019-02-08T00:00:00+00:002019-02-08T00:00:00+00:00https://adrian.ng/notes/gitgit setup 
git config --global user.name ""
git config --global user.email ""

git config --global credential.helper store

git rm

This example removes from the local repository all the auxillary files that TeX likes to generate each time I render my cv.

git rm --cached cv.aux cv.fdb_latexmk cv.fls cv.log cv.out .cv.synctex

git status
Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

        deleted:    cv.aux
        deleted:    cv.fdb_latexmk
        deleted:    cv.fls
        deleted:    cv.log
        deleted:    cv.out
        deleted:    cv.synctex.gz

Untracked files:
  (use "git add <file>..." to include in what will be committed)

        cv.aux
        cv.fdb_latexmk
        cv.fls
        cv.log
        cv.out
        cv.synctex.gz

Now I need to ignore these files. I create a .gitignore file in the root of the respository.

touch .gitignore

And it’s just a matter of adding filenames to this file. After which, they should not long appear in the list of untracked files:

Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

        deleted:    cv.aux
        deleted:    cv.fdb_latexmk
        deleted:    cv.fls
        deleted:    cv.log
        deleted:    cv.out
        deleted:    cv.synctex.gz

Untracked files:
  (use "git add <file>..." to include in what will be committed)

        .gitignore
]]>Adrian Ngcontact@adrian.ngPackages2019-02-08T00:00:00+00:002019-02-08T00:00:00+00:00https://adrian.ng/notes/packages
sudo apt update && sudo apt upgrade

install xorg

sudo apt-get install xauth
sudo apt-get install xorg openbox

install VS code

Reference

The repository and key can also be installed manually with the following script:

curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
sudo install -o root -g root -m 644 microsoft.gpg /etc/apt/trusted.gpg.d/
sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/vscode stable main" > /etc/apt/sources.list.d/vscode.list'

Then update the package cache and install the package using:

sudo apt-get install apt-transport-https
sudo apt-get update
sudo apt-get install code

This also needs to be installed:

sudo apt-get install libasound2

To run code:

#normally
code

#if nothing happens
code --verbose

# if x11 doesn't like your GPU
code --disable-gpu

TeX

sudo apt-get install texlive-full

Then i use VS Code as my TeX editor.

]]>Adrian Ngcontact@adrian.ngSSH2019-02-08T00:00:00+00:002019-02-08T00:00:00+00:00https://adrian.ng/notes/sshssh

because I always have problems with ssh localhost on wsl

sudo service ssh start
]]>Adrian Ngcontact@adrian.ngHardware Timeline2019-01-27T00:00:00+00:002019-01-27T00:00:00+00:00https://adrian.ng/hardwareReference

https://developers.google.com/chart/interactive/docs/gallery/timeline

Computer

Phones

]]>Adrian Ngcontact@adrian.ngWe have Email!2018-05-19T00:00:00+00:002018-05-19T00:00:00+00:00https://adrian.ng/emailYou can now get in touch at hi@adrian.ng.

]]>Adrian Ngcontact@adrian.ngHTTPS2018-05-12T00:00:00+00:002018-05-12T00:00:00+00:00https://adrian.ng/httpsWe are now enforcing HTTPS! Hopefully that should solve some issues we’d been having!

]]>Adrian Ngcontact@adrian.ngHello LaTeX!2018-04-01T00:00:00+00:002018-04-01T00:00:00+00:00https://adrian.ng/latex/LaTeXWe’ve got LaTeX!

\[\frac{1}{2\pi\sigma^2}exp{-\frac{(x-\mu)^2}{2\sigma^2}}\]

This was done by adding this block of code to _includes/scripts.html:


<script type="text/javascript" async
  src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-MML-AM_CHTML">
</script>
]]>Adrian Ngcontact@adrian.ng