amichaelgrant

#!/bin/sh
# ------------------------------------------------------------------------------ 
# SOME INFOS : fairly standard (debian) init script.
#                 Note that node doesn't create a PID file (hence --make-pidfile) 
#                 has to be run in the background (hence --background)
#                 and NOT as root (hence --chuid)
#
# MORE INFOS :  INIT SCRIPT       http://www.debian.org/doc/debian-policy/ch-opersys.html#s-sysvinit
#               INIT-INFO RULES   http://wiki.debian.org/LSBInitScripts
#               INSTALL/REMOVE    http://www.debian-administration.org/articles/28

amichaelgrant

/**
 * example C code using libcurl and json-c
 * to post and return a payload using
 * http://jsonplaceholder.typicode.com
 *
 * Requirements:
 *
 * json-c - https://github.com/json-c/json-c
 * libcurl - http://curl.haxx.se/libcurl/c
 *

amichaelgrant

#include "./../deps/libuv/include/uv.h"
#include <stdio.h>

int msg;

void mkdir_cb (uv_fs_t* req) {
	int* msg = req->data;
	printf("send(%d)\n", *msg);
}

amichaelgrant

/*
 * FormData for XMLHttpRequest 2  -  Polyfill for Web Worker
 * (c) 2014 Rob Wu <[email protected]>
 * License: MIT
 * - append(name, value[, filename])
 * - XMLHttpRequest.prototype.send(object FormData)
 * 
 * Specification: http://www.w3.org/TR/XMLHttpRequest/#formdata
 *                http://www.w3.org/TR/XMLHttpRequest/#the-send-method
 * The .append() implementation also accepts Uint8Array and ArrayBuffer objects

amichaelgrant

failed (104: Connection reset by peer) while reading response header from upstream, client:
If you are getting the above error in nginx logs running in from of upstream servers you may consider doing this as it worked for me:
check the ulimit on the machines and ensure it is high enough to handle the load coming in. 'ulimit' on linux, I am told determines the maximum number of open files the kernel can handle.

The way I did that?
modifying limits: for open files:
--------------------------------
add or change this line in /etc/systcl.conf
fs.file-max = <limit-number>

amichaelgrant

Use mongodump and mongorestore instead:

mongodump:
----------
mongodump --host <ip> --db <database> --out /var/lib/openshift/uuid/app-root/data --username <your-user-name>  --password <your-password>


mongorestore:
-------------
mongorestore --db <database> <file-from-mongo-dump.bson>

amichaelgrant

check process redis-server
    with pidfile "/var/run/redis.pid"
    start program = "/etc/init.d/redis-server start"
    stop program = "/etc/init.d/redis-server stop"
    if 2 restarts within 3 cycles then timeout
    if totalmem > 100 Mb then alert
    if children > 255 for 5 cycles then stop
    if cpu usage > 95% for 3 cycles then restart
    if failed host 127.0.0.1 port 6379 then restart
    if 5 restarts within 5 cycles then timeout

amichaelgrant

#!/bin/bash
# Sample App       Init script for running sample app daemon
#
# chkconfig: - 98 02
#
# description: Sample Application Upstart, using Forever


APPHOME=/opt/sample-app
APPSCRIPT=app.js

amichaelgrant

www.yahsoftware.com
www.gigo.club

amichaelgrant

webserver: webserver.c libuv/uv.a http-parser/http_parser.o
	gcc -I libuv/include \
    -lrt -lm -lpthread -o \
    webserver webserver.c \
    libuv/uv.a http-parser/http_parser.o

libuv/uv.a:
	$(MAKE) -C libuv

http-parser/http_parser.o: