sanogotech

• To restart a specif Managed Server in a Domain

./jboss-cli.sh --connect --controller=10.25.236.195:9999 --user <admin user> --password <admin pwd>

/host=136-slave/server-config=srv-163:start(blocking=true)
/host=136-slave/server-config=srv-163:stop(blocking=true)

./jboss-cli.sh --connect --controller=10.25.236.195:9999 --command='/host=136-slave/server-config=srv-163:stop(blocking=true)'
{

sanogotech

First steps with the Luigi workflow manager

As an introduction into Luigi, I am following this tutorial with some modifications, e.g. installation using conda.

The problems and solutions described in the examples below have led to the development of sciluigi,

sanogotech

/* *******************************************************************************************
 * THE UPDATED VERSION IS AVAILABLE AT
 * https://github.com/LeCoupa/awesome-cheatsheets
 * ******************************************************************************************* */


// 0. Synopsis.
// http://nodejs.org/api/synopsis.html

sanogotech

Svelte cheatsheet

Doc examples

Table of Contents

1. Structure
2. Imports
3. Variables
4. Reactivity
5. Variables

sanogotech

---
version: '2'
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:latest
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000

  kafka:

sanogotech

## SSL Settings

ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH";
ssl_ecdh_curve secp384r1;
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:10m;
ssl_session_tickets off;
ssl_stapling on;

sanogotech

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

sanogotech

I use PostgreSQL via the psql client. If you use a different client (eg. pgAdmin, etc.), I don't know how much will translate over.

One nice difference between psql and mysql (cli) is that if you press CTRL+C, it won't exit the client.

User administration

Login as superuser (via shell)

psql -U postgres

sanogotech

# All Commands are jboss-cli.sh unless indicated

# Stop / Start JBoss Server
/host=master/server-config=server-one:stop
/host=master/server-config=server-one:start

# Check is JBoss is Up
ls -l /host=master/server-config=server-one   (SHOULD Work)
Bash = ps -e -o pid -o args | grep java | grep 'server-one' | grep -v 'grep' | awk '{print $1}' (Will return just the PID of the running instance)

sanogotech

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.