Random tech issues we face
Some we have observed that the current replication factor for some topics is not set to its best. The reason may be the initial setup of Kafka, less traffic or the product is in initial stages In the future when our data grows, our aim shits towards durability and scalability and we want to make …
Just sharing few commands to load a .bash_profile without exiting from terminal or command line
We will look at how class hierarchies in Jackson works. We will take an example of building a Notification Service Pojo to demonstrate this. Below is the package/class diagram for this.
Here is a list of top Kafka interview question based on my exposure to Apache Kafka Kafka Basics What is Apache KafkaWhat are topics and partitions What are various components of KafkaWhat is a consumer groupWhat is an offsetWhat are the different ways to commit an offset?What is the importance of __consumer_offsets topic What is the …
For different workspace sources and javadoc from maven repo can be download as follows: Eclipse For IntelliJ & Android Studio To apply and run plugins: References https://docs.gradle.org/current/dsl/org.gradle.plugins.ide.eclipse.model.EclipseClasspath.htmlhttps://docs.gradle.org/current/dsl/org.gradle.plugins.ide.idea.model.IdeaModule.html
ulimit is a shell command to control the resources available to a bash shell and all the programs that are started from this shell. We can get and set the ulimit of a process or a user Ulimit of a process Ulimit of a process can be found by doing cat of /process/<pid>/limits. Ulimit of a …
First download certificate in java file Import it using keytool command Java Trust store location : <JRE_HOME>/lib/security/cacerts
Sometime back I got below error while connecting to SSL secured site in java. I was using java 8 update 60. Why this error comes and how to resolve it. We will see that. PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target Before getting into solution, I would like …
Recently faced an issue where the docker stop was not calling a shutdown hook was not working correctly. The same application when run as a spring boot applicaiton or jar without docker invokes the shutdownhook. During debugging found that the boot app inside the container is not geting SIGTERM when docker stop command is being issued. The boot …
Remove all existing keysGenerate ssh key for the current user which wants to commit to githubadd the ssh key for new userInitialise the new Repository Add the remote url ( here note that we are not using https url)Add user name and email to git configCommit and push to git