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@pegasuskim
pegasuskim / cpu.js
Created August 16, 2016 04:54 — forked from bag-man/cpu.js
How to calculate the current CPU load with Node.js; without using any external modules or OS specific calls.
var os = require("os");
//Create function to get CPU information
function cpuAverage() {
//Initialise sum of idle and time of cores and fetch CPU info
var totalIdle = 0, totalTick = 0;
var cpus = os.cpus();
//Loop through CPU cores
@pegasuskim
pegasuskim / logstash.conf
Created November 17, 2016 09:30 — forked from dbaba/logstash.conf
LogStash configuration file for Storm
input {
stdin {
type => "stdin-type"
}
file {
type => "syslog"
path => [ "/var/log/*.log", "/var/log/messages", "/var/log/syslog" ]
start_position => "beginning"
}
@pegasuskim
pegasuskim / server.js
Created January 9, 2017 02:21 — forked from outsideris/server.js
node.js express middleware 중에서 logger를 사용하여 실제 파일로 logging 하는 방법
/**
* express 처음에 init 하시면 app.js 를 비롯하여 여러 디렉토리가 생기는데
* logs 디렉토리에 아무것도 안남는다고 의문을 가지신 분에게 도움이 될거 같습니다.
* connect의 middleware logger 는 기본이 stdout 으로 출력하고 있었네요.
* http://senchalabs.github.com/connect/middleware-logger.html
* manual을 살펴보니 stream options 이 있었군요.
* 한번 생각나서 fs core module의 createWriteStream 을 사용하여 해봤더니 잘되네요.
* 다른 방법도 있으신분은 알려주세요
*/
var fs = require('fs'),
@pegasuskim
pegasuskim / sar.conf
Created January 16, 2017 05:35 — forked from xkr47/sar.conf
Example logstash configuration for streaming/tailing sysstat "sar" command
input {
pipe {
tags => [ "sar", "loadavg" ]
command => "env LANG=C sar -q 5"
}
pipe {
tags => [ "sar", "cpu" ]
command => "env LANG=C sar -u 5"
}
}
@pegasuskim
pegasuskim / Mysql FIne Tuning - my.cnf
Created February 9, 2017 05:42 — forked from pvgomes/Mysql FIne Tuning - my.cnf
#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
@pegasuskim
pegasuskim / redis_mysql_dump.js
Created January 31, 2018 01:07 — forked from gotomypc/redis_mysql_dump.js
Redis to MySQL dump
// modules
var redis = require('redis');
var Step = require('step');
// config file
var config = require('config');
// mysql client connect
var mysql = require('mysql');
var connection = mysql.createConnection({
@pegasuskim
pegasuskim / redis_mysql_dump.js
Created January 31, 2018 01:07 — forked from gotomypc/redis_mysql_dump.js
Redis to MySQL dump
// modules
var redis = require('redis');
var Step = require('step');
// config file
var config = require('config');
// mysql client connect
var mysql = require('mysql');
var connection = mysql.createConnection({
@pegasuskim
pegasuskim / redis-sentinel-failover.sh
Created April 3, 2018 06:13 — forked from holly/redis-sentinel-failover.sh
redis-sentinel client-reconfig-script
#!/bin/sh
# The following arguments are passed to the script:
#
# <master-name> <role> <state> <from-ip> <from-port> <to-ip> <to-port>
MASTER_IP=$6
VIP=172.17.0.101
NETMASK=16
IF=eth0
MY_IP=$(ip addr show dev $IF | grep "global $IF" | head -1 | sed -e "s/^.*inet \(.*\)\/$NETMASK .*$/\1/")
@pegasuskim
pegasuskim / redis-notify.sh
Created April 3, 2018 06:20 — forked from matetsu/redis-notify.sh
#!/bin/sh
# redis-notify.sh
MAIL_FROM="notify@example.net"
MAIL_TO="alert@example.net"
if [ "$#" = "2" ]; then
mail_subject="Redis Notification"
mail_body=`cat << EOB
============================================
@pegasuskim
pegasuskim / redis-sentinel-switch-state.sh
Created April 5, 2018 08:42 — forked from waja/redis-sentinel-switch-state.sh
Shell script to migrate a VIP to the actual redis master when managing them with redis-sentinel
#!/bin/sh
_DEBUG="on"
DEBUGFILE=/tmp/sentinel_failover.log
VIP='10.125.125.30'
MASTERIP=${6}
MASK='24'
IFACE='eth0'
MYIP=$(ip -4 -o addr show dev ${IFACE}| grep -v secondary| awk '{split($4,a,"/");print a[1]}')
DEBUG () {