Mert ÇalışkanExecuting Cloudformation bash scripts with sudoThe biggest catch for Cloudformation is to execute your bash scripts (a.k.a UserData) after spawning your instance but in order to execute…Jan 2, 2017Jan 2, 2017
Mert ÇalışkanHow to silently change admin password and enable secure admin on PayaraWhile installing Payara on Amazon EC2 instances, I wanted to enable accessing the admin console remotely. This is easy to handle with…Jan 1, 2017Jan 1, 2017
Mert ÇalışkanCreating Cassandra Cluster with KitematicDocker Toolbox is a nice toolset from Docker that offers:Sep 16, 20152Sep 16, 20152
Mert ÇalışkanUsing Hibernate 5 on PayaraWhile deploying Hibernate 5.0.1.Final powered application on Payara 4.1.153, I faced with the stacktrace given below.Sep 14, 20152Sep 14, 20152
Mert ÇalışkanHelper method for waiting EC2 instances until they get readyAutomating EC2 instance creation is a necessity when it comes to executing a series of try-outs. The method given below is a nice helper…Aug 18, 2015Aug 18, 2015
Mert ÇalışkanImproving the Quality on PDF size reducing of the Preview App on MacHaving a 1200dpi scanned PDF with a size of 20mb’s, I was looking for a way to shrink it down on Mac. Export feature on Preview app was my…Aug 6, 20151Aug 6, 20151
Mert Çalışkan[PoC9] Performant setup w/ Cassandra, Netty, NGINX, RESTEasy to handle REST web service requestsAfter a series of PoCs (this, that and many others) executed on Amazon EC2, now it’s time to build up the stack that I’m planning to use…Aug 5, 2015Aug 5, 2015
Mert Çalışkan[PoC8] Performance tuning on Cassandra & EC2 to store 3 millions/minute requests by retrieving from…I’ve already implemented a working PoC for storing 2 millions requests a minute on Cassandra but the final graph that was crafted from…Aug 4, 2015Aug 4, 2015
Mert Çalışkan[PoC7] Storing ~2millions/minute records in Cassandra by retrieving from a Netty-based REST web…Having delt with REST web service implementations based on RESTEasy and Netty for quite some time, I’ve managed to handle from 20k/sec to…Jul 28, 2015Jul 28, 2015
Mert ÇalışkanInstall & run bare-bone Cassandra Cluster on EC2I’ve already created a Cassandra Cluster on EC2 by employing Docker but if you need to do a bare-bone installation to compare some…Jul 27, 2015Jul 27, 2015