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On Friday (5th Nov), I wanted to install Zend server on my local host, so I had to remove AppServ which I used to work with it before (what is Zend and AppServ ?). After removing AppServ, I tried to install Zend server but it gave me some weird errors, once I could see localhost and index but MySQL didn’t work, once showed that port is busy once even I couldn’t see localhost. I spent all Friday night to fix it but when fixed it was too slow, with the experience I had with zend I knew it will be slower than AppServ but my reason for changing from AppServ to zend was just to try a different  environment and I also was interested in zend framework. I could not stand zend, it was very slow, so I remove it and I tried to reinstall AppServ but it refused, the error was; while installing MySQL, it freeze, I tried many times and also different version but still exactly same error, after uninstalling and installing these software for php environment I fall sleep, after having 4 hour sleep, I tried to install xampp, but after all mess with php.ini so as I expected xampp gave me localhost error. Now I end up with working 12 hours constantly and I lost AppServ, well, refer to quote above, actually I didn’t work, I was ready to spend time. I spent couple hours more and finally reinstalled AppServ. Feel good when you solve a problem specially after spending hours. It was a great experience of problem solving and not to given up.

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I solved GCHQ puzzle and this is how I did it

Today, I was reading the BBC news and I stumbled upon this GCHQ puzzle:
Take the digits 1,2,3 up to 9 in numerical order and put either a plus sign or a minus sign or neither between the digits to make a sum that adds up to 100. For example, one way of achieving this is:
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We have 9 numbers [1 to 9] and also we have three possible separators [+, - and nothing] which to fill the gap between numbers we have 8 combinations of separators, e.g. we have 1+2+3+4+5+6+7-89 which in this case we have six times plus, one minus and one time nothing. 
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Global

:help keyword – open help for keyword

: o file – open file

:saveas file – save file as

:close – close current pane

Cursor movement

h – move cursor left

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k – move cursor up

l – move cursor right

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M – move to middle of screen

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B – jump backwards to the start of a word (words can contain punctuation)

0 – jump to the start of the line

^ – jump to the first non-blank character of the line

$ – jump to the end of the line

g_ – jump to the last non-blank character of the line

gg – go to the first line of the document

G – go to the last line of the document

5G – go to line 5

fx – jump to next occurrence of character x

tx – jump to before next occurrence of character x

} – jump to …

Why Prestashop needs improvement for large application?

I have worked with Prestashop 1.6 long enough to know inside/outside of the application and even I developed few modules myself, all is simple and great but in small scale. My application is big, I am talking about millions rows in database. Two databases weight almost 18G (see the picture).

One day at 2AM I received a notification that my website/application is down. I looked at the server the application seems OK but the databases gone crazy big, (see the picture) it has gone from 18G to over 90G less than 6 hours. 
Since there was almost none free space left on the server, all server running really slow even I could not restart NGINX. All was frozen. All my websites/applications run on dedicated server on UKFast, so none of websites would work because all is glued together. 
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