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An error occurred while installing mysql2 (0.5.2), and Bundler cannot continue.

Leave a Comment / MySQL, Ruby / By juzhax

Gem files will remain installed in /var/www/discourse/vendor/bundle/ruby/2.5.0/gems/mysql2-0.5.2 for inspection. Results logged to /var/www/discourse/vendor/bundle/ruby/2.5.0/extensions/x86_64-linux/2.5.0-static/mysql2-0.5.2/gem_make.out An error occurred while installing mysql2 (0.5.2), and Bundler cannot continue. Make sure that gem install mysql2 -v ‘0.5.2’ –source ‘https://rubygems.org/’ succeeds before bundling. In Gemfile: mysql2 I found the best way to solve the problem. I think that you may missing …

An error occurred while installing mysql2 (0.5.2), and Bundler cannot continue. Read More »

`require’: cannot load such file — php_serialize (LoadError)

File ./vendor/autoload.php missing or not readable. in centminmod phpMyAdmin

Leave a Comment / Linux / By juzhax

After installed the phpMyAdmin in centminmod, I saw this error message. File ./vendor/autoload.php missing or not readable. Most likely you did not run Composer to install library files. I like to fix it manually and access to my server shell and run these command. [code lang=”shell”] cd /usr/local/nginx/html/1111_mysqladmin12345 git pull rm -rf composer.phar wget -cnv …

File ./vendor/autoload.php missing or not readable. in centminmod phpMyAdmin Read More »

Create WordPress widget template from scratch

Leave a Comment / PHP, Wordpress / By juzhax

I’ve save down the most basic widget code for WordPress, you can copy this to your plugin and modify it to start your first widget. You can save time on this tutorial to help you create wordpress widget from scratch. [code lang=”php”] <?php class example_widget extends WP_Widget { function __construct() { parent::__construct(false, $name = ‘Example …

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Install Tinyproxy on Centos 7

Leave a Comment / Linux / By juzhax

Tinyproxy is a light-weight HTTP/HTTPS proxy daemon for POSIX operating systems. Designed from the ground up to be fast and yet small, it is an ideal solution for use cases such as embedded deployments where a full featured HTTP proxy is required, but the system resources for a larger proxy are unavailable. [code lang=”shell”] yum …

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mongoexport and mongoimport with query from one host to one host

Leave a Comment / Linux / By juzhax

I would like to query the data that I need only from a server to another server, and I just use one line of command in linux shell [code lang=”shell”] mongoexport -h fromHost.com -d fromDB -c fromCollection -q ‘{ count: { $gte: 1 } }’ | mongoimport -h toHost.com -d toNewDB -c toNewCollection [/code] If …

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Fast way to find duplicate data in MongoDB

Leave a Comment / Linux / By juzhax

I need to find out the duplicate data content in my 40 Millions records, then I can make the unique index to my name field. [code lang=”shell”] > db.collecton.aggregate([ … { $group : {_id : "$field_name", total : { $sum : 1 } } }, … { $match : { total : { $gte : …

Fast way to find duplicate data in MongoDB Read More »

ERROR: failed to ptrace(PEEKDATA) pid 17402: Input/output error (5)

Leave a Comment / Linux / By juzhax

You may found this error from your php-fpm and the php-fpm crash [code lang=”shell”] tail /var/log/php-fpm/error.log [15-May-2016 12:24:13] ERROR: failed to ptrace(PEEKDATA) pid 17402: Input/output error (5) [15-May-2016 12:24:13] ERROR: failed to ptrace(PEEKDATA) pid 17777: Input/output error (5) [15-May-2016 12:24:13] ERROR: failed to ptrace(PEEKDATA) pid 18886: Input/output error (5) [15-May-2016 12:25:53] ERROR: failed to ptrace(PEEKDATA) …

ERROR: failed to ptrace(PEEKDATA) pid 17402: Input/output error (5) Read More »

How to clear nginx cache manually ?

Leave a Comment / Linux / By juzhax

Normally I like to do manually job. assume that the default path of your nginx cache is /var/cache/nginx [code lang=”shell”] find /var/cache/nginx -type f -delete [/code] This will clear all your cache in one line. Delete a single file from nginx cache If you just want to delete a single file from nginx cache, you …

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How to resize OVH Public Cloud disk in CentOS 7 linux

Leave a Comment / Linux / By juzhax

I’m going to resize 100G SSD to 150GB SSD in Public Cloud First I check the current mounted disk [code lang=”shell”] [[email protected] ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 40G 2.4G 36G 7% / devtmpfs 3.8G 0 3.8G 0% /dev tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 3.9G 17M 3.8G 1% …

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An error occurred while installing mysql2 (0.5.2), and Bundler cannot continue.

`require’: cannot load such file — php_serialize (LoadError)

File ./vendor/autoload.php missing or not readable. in centminmod phpMyAdmin

Create WordPress widget template from scratch

Install Tinyproxy on Centos 7

mongoexport and mongoimport with query from one host to one host

Fast way to find duplicate data in MongoDB

ERROR: failed to ptrace(PEEKDATA) pid 17402: Input/output error (5)

How to clear nginx cache manually ?

How to resize OVH Public Cloud disk in CentOS 7 linux

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