Ververica Blog

Apache Flink, stream processing, event-driven applications, and more.

Sign up for Monthly Blog Notifications

Please send me updates about products and services of Ververica via my e-mail address. Ververica will process my personal data in accordance with the Ververica Privacy Policy.

by Nico Kruber May 24, 2022

Monitoring Large-Scale Apache Flink Applications, Part 1: Concepts & Continuous Monitoring

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...

Read More
by David Anderson February 10, 2022

Continuously Improving Apache Flink Training

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...

Read More

Ververica Apache Flink Hackathon - Nov 2021 Edition

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...

Read More
by Konstantin Knauf December 17, 2021

Security Advisory - Log4Shell

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...

Read More
by Victor Xu July 13, 2021

Troubleshooting Apache Flink with Byteman

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...

Read More
by Jun Qin March 29, 2021

The Impact of Disks on RocksDB State Backend in Flink: A Case Study

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....

Read More
by Feng Wang December 21, 2020

Apache Flink's stream-batch unification powers Alibaba's 11.11 in 2020

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...

Read More

How mitigating event-time skewness can reduce checkpoint failures and task manager crashes

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...

Read More
by Alexander Fedulov July 09, 2020

Presenting our Streaming Concepts & Introduction to Flink Video Series

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...

Read More