Project Metamorphosis: Unveiling the next-gen event streaming platformLearn More
Contact Us
Connecting to Apache Kafka

Apache Kafka 0.8.2.1 release

Jun Rao

The Apache Kafka community just announced the 0.8.2.1 release. This is a a bug fix release and fixes 4 critical issues reported in the 0.8.2.0 release (the full list of features can be found here).

  • The first issue is that in certain cases, a broker can use significantly more CPU compared with the 0.8.1 release. This happens when (1) replication is used, (2) the number of partitions per broker is high (say a few thousand) and (3) the cluster is small (say less than 5 brokers).
  • The second issue is that when starting a broker with a conflicting broker id, the process of shutting down this broker accidentally removes critical broker registration in ZooKeeper. This may cause some of the topic partitions to be unavailable unexpectedly later on.
  • The last two issues are in the new Java producer. We fixed an issue that a message may not be delivered since the producer doesn’t correctly pick an available partition. This tends to happen when the replication factor is only one and one or more brokers fail. Another issue that we fixed is that on an empty Kafka cluster, the CPU usage of the new producer is high after initialization.

Since those issues are relatively critical, we recommend everyone upgrade to the 0.8.2.1 release. Note that all those changes are already included in the Kafka jar shipped with Confluent Platform 1.0.

Did you like this blog post? Share it now

Subscribe to the Confluent blog

More Articles Like This

Announcing ksqlDB 0.10.0

We’re excited to announce the release of ksqlDB 0.10.0, available now in the standalone distribution and on Confluent Cloud! This version includes a first-class Java client, improved Apache Kafka® key […]

Read

Confluent CLI 1.0 is Now Generally Available for Cloud and Platform

Over a year ago, Confluent set out on a mission to improve user experience by empowering developers, operators, and architects with intuitive command line interfaces (CLIs) for managing their Confluent […]

Read

Kafka Streams Interactive Queries Go Prime Time

What is stopping you from using Kafka Streams as your data layer for building applications? After all, it comes with fast, embedded RocksDB storage, takes care of redundancy for you, […]

Read

Sign Up Now

Start your 3-month trial. Get up to $200 off on each of your first 3 Confluent Cloud monthly bills

New signups only.

Customer Support

I already have an account.

By clicking “sign up” above you understand we will process your personal information in accordance with our Privacy Policy.

By clicking "sign up" above you agree to the Terms of Service and to receive occasional marketing emails from Confluent. You also understand that we will process your personal information in accordance with our Privacy Policy.

Free Forever on a Single Kafka Broker
i

The software will allow unlimited-time usage of commercial features on a single Kafka broker. Upon adding a second broker, a 30-day timer will automatically start on commercial features, which cannot be reset by moving back to one broker.

Select Deployment Type
Manual Deployment
  • tar
  • zip
  • deb
  • rpm
  • docker
or
Auto Deployment
  • kubernetes
  • ansible

By clicking "download free" above you understand we will process your personal information in accordance with our Privacy Policy.

By clicking "download free" above, you agree to the Confluent License Agreement and to receive occasional marketing emails from Confluent. You also agree that your personal data will be processed in accordance with our Privacy Policy.

This website uses cookies to enhance user experience and to analyze performance and traffic on our website. We also share information about your use of our site with our social media, advertising, and analytics partners.

Accept CookiesMore Information