Highly scalable/available distributed system whiling maintaining integrity
I think that ACID is a main mechanism to maintain the application consistency but it's hard to make it highly scalable and available system because of synchr...
Blog Posts
Recent posts
Java - Spring unit test with custom provided configuration.
The following example will show how to define the custom Spring configuration for unit test with @ContextConfiguration annotation. Full example can be found ...
JVM - Profiling and GC analysis tool
The easiest GC log analysis web site. https://gceasy.io/ Profiling Adding a JVM Option +XX:+PreserveFramePointer https://github.com/jvm-profiling-tools/perf-...
Simple way to generate ssh pub/private key
Very simple way to generate ssh pub/private key in Linux. 1 $ ssh-keygen -t rsa -P "" -m PEM -f filename Copy the content of .ssh/id_rsa.pub to .ssh/autho...
Spark - Cassandra connector example
Github https://github.com/nsclass/spark-cassandra-example 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 object SparkCassandra...