Docker - difference RUN, CMD and ETRYPOINT
1. CMD vs ENTRYPOINT The ENTRYPOINT specifies a command that will always be executed when the container starts. The CMD specifies arguments that will be fed ...
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Java - Loading an entire Cassandra table in parallel
Sometimes, it is required to load all rows in the Cassandra table but it is very slow if loading is performed by a single thread. Let’s say we have the follo...
C++ 17 - Generative Programming in C++ 17
Interesting generative programming in C++ 17. I think that this explains why compile time reflection and declarative programming approach is required for cle...
High scalable application characteristics
1. Stateless - HTTP request/respond structure. 2. Idempotence - database snapshot, recovering data. 3. Monoid - map/reduce, parallelizing operations.
Docker - nsenter tool to access the Docker container
Installing nsenter in /usr/loca/bin directory 1 $ sudo docker run -v /usr/local/bin:/target jpetazzo/nsenter Get the process id of container 1 PID=$(docker ...