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Showing posts from July, 2016

Data Analytics Platforms

http://www.zoomdata.com/product/embedded-data-analytics-visualization/ https://www.bottlenose.com/products http://www.striim.com/products/ Lucidworks Fusion Datastax DSE

upstart script (tiny)

Simple upstart script env PORT=5001 start on runlevel [2345] stop on runlevel [016] respawn setuid john chdir /home/john/Applications/my-nodejs-server/ exec node index.js Can configure environment variables in a faux  12 factor  style. NodeJS app will automatically start on boot, and stop on shutdown. Upstart will restart the app if it crashes. Runs as unpriveleged user 'john'. Upstart (1.4 and above) logs all output to  /var/log/upstart/my-nodejs-server.log  which will be rotated by logrotate. Can manage the lifecycle with  sudo service my-nodejs-server {start,stop,restart} . Can temporarily disable the app from starting on boot with an override file:  $ echo manual | sudo tee /etc/init/my-nodejs-server.override .

SocketListener

import java.io.IOException; import java.io.InputStream; import java.net.Inet4Address; import java.net.ServerSocket; import java.net.Socket; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; /**  * Socket listener for unit test to listen for messages.  *  * @author dev  *  */ public class SocketListener { String host; int port; ServerSocket s; ExecutorService executor = Executors.newSingleThreadExecutor(); public SocketListener(String host, int port) { this.host = host; this.port = port; } public SocketListener init() { try { s = new ServerSocket(port, 10, Inet4Address.getByName(host)); Worker worker = new Worker(); executor.submit(worker); } catch (IOException e) { throw new RuntimeException("Failed to listen", e); } return this; } public void close() { if (s != null) { try { s.close(); } catch (IOException e) { // ignore } } } ...

Browsing ADFS

connecting to the AD domain controller via ldap using Apache Directory Studio. No special access required. Same as how your user authenticates on OS. ldap://10.10.10.10:636 (bind as your domain account) Search for user: Base DN: DC=youDomain,DC=smtf,DC=ds Windows account id: (sAMAccountName=tcollinsworth) Name: (displayName=Troy*)

WebHook testing

RequestBin

Stacktrace of Java process

jstack To quickly dump stack from command line for eclipse process jps | grep RemoteTestRunner | cut -f 1 -d ' ' | xargs jstack

Stacktrace of Java process

jstack To quickly dump stack from command line for eclipse process jps | grep RemoteTestRunner | cut -f 1 -d ' ' | xargs jstack

Force IPv4

-Djava.net.preferIPv4Stack=true -Djava.net.preferIPv6Addresses=false

Java 8 UTC datetime as string

public static String getUTCDatetimeAsString() {    return LocalDateTime.now(Clock.systemUTC()); }

Code monitoring and continuous inspection

SonarQube

General RPC

gRPC

Top Web Sites Technology

Technology used in most popular websites Most used: Javascript 100% MySQL / MariaDB 53% Java 47% C++ 33% Python 27%