Confluent
Apache Kafka 0.8.2.1 release
Connecting to 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.

Subscribe to the Confluent Blog

Subscribe
Email *
[ssba]

More Articles Like This

mdc-1024x666-1-350x228
Neha Narkhede

Introducing Apache Kafka™ for the Enterprise

Neha Narkhede . .

In May, we introduced our first enterprise-focused feature, Confluent Control Center, with the 3.0 release of Confluent. Today, more than 35% of the Fortune 500 companies use Kafka for mission-critical ...

log compaction
Guozhang Wang

Log Compaction | Highlights in the Apache Kafka and Stream Processing Community | June 2016

Guozhang Wang . .

After months of testing efforts and seven voting rounds, Apache Kafka 0.10.0 and the corresponding Confluent Platform 3.0 have been finally released, cheers!...

Apache Kafka logo
Neha Narkhede

Announcing Apache Kafka 0.10 and Confluent Platform 3.0

Neha Narkhede . .

I am very excited to announce the availability of the 0.10 release of Apache Kafka and the 3.0 release of the Confluent Platform. This release marks the availability of Kafka ...

Leave a Reply

Your email address will not be published. Required fields are marked *

Try Confluent Platform

Download Now