Ververica Blog

As the original creators of Apache Flink, we are often asked for best practices around monitoring Flink applications and people want to know which metrics they should monitor for their applications...

Apache Flink is one of the fastest-evolving open source projects, so we’re continuously improving our Apache Flink training courses to keep pace. There are usually three significant Apache Flink...

Hackathons at Ververica At Ververica we have a long-standing tradition of Hackathons. In fact, some widespread and very relevant features and efforts in Apache Flink and Ververica Platform originated...

What is Log4Shell? A Remote Code Execution (RCE) vulnerability was discovered in the popular Java logging library, Log4j. It is tracked via CVE-2021-44228 and is known as Log4Shell. This is a serious...

Introduction What would you do if you need to see more details of some Apache Flink application logic at runtime, but there's no logging in that code path? An option is modifying the Flink source...

As covered in a recent blog post, RocksDB is a state backend in Flink that allows a job to have state larger than the amount of available memory as the state backend can spill state to local disk....

Apache Flink, Ververica Platform and Alibaba Cloud's RealTime Compute technology stack processes record breaking real time data during this year's Double 11! Wondering how Apache Flink, Ververica...

Introduction Support for event time and stateful event processing are some of the features that make Apache Flink stand out compared to other stream processors. However, using event time may cause...

Transitioning from the batch data processing world into the world of stream processing and real time analytics can be challenging. Throughout this process, there are many new concepts you need to...