ZooKeeper

ZooKeeper product description

ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. All of these kinds of services are used in some form or another by distributed applications. Each time they are implemented there is a lot of work that goes into fixing the bugs and race conditions that are inevitable. Because of the difficulty of implementing these kinds of services, applications initially usually skimp on them, which make them brittle in the presence of change and difficult to manage. Even when done correctly, different implementations of these services lead to management complexity when the applications are deployed.

Figure: Release, patch and end-of-life cycle of product ZooKeeper (Apache)

 

ZooKeeper release strategy

The Apache ZooKeeper community supports two release branches at a time: stable and current. The stable version of ZooKeeper is 3.7.x and the current version is 3.8.x. Once a new minor version is released, the stable version is expected to be decommissioned soon and in approximately half a year will be announced as End-of-Life. During the half year grace period only security and critical fixes are expected to be released for the version. After EoL is announced no further patches are provided by the community. All ZooKeeper releases will remain accessible from the official Apache Archives.

ZooKeeper properties & statistics

 

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Keywords

ZooKeeper

 

Apache

 

Application

 

Release

 

Version

 

Major

 

Minor

 

Patch

 

End-of-life

 

EOL

 

Support

 

End-of-support

 

EOS

 

Maintenance

 

Security

 

Vulnerabilities

 

Common vulnerabilities & exposures

 

CVE