ZooKeeper

Determine ZooKeeper version using command-line utilities.

Inspect ZooKeeper logs and snapshots.

Debug ZooKeeper SSL connection issues.

How to remove old ZooKeeper snapshots and transaction logs.

Secure the ZooKeeper client communication.

Secure the ZooKeeper quorum communication using SSL certificates.

PKCS #12 format works fine when used to provide ZooKeeper keystore, but additional steps are needed to use it for a dedicated truststore.

Display ZooKeeper state for each server using the four-letter commands.

Alter memory allocation pool for Kafka and ZooKeeper.

Disable GC Logging for Kafka and bundled ZooKeeper.

Debug ZooKeeper connection inside a Python script.

Use ZooKeeper to elect the leader and share data with a Python script.

Use ZooKeeper to lock resources with a Python script.

Enable the four-letter words.

Provide additional JVM options to the ZooKeeper instance.

Display ZooKeeper startup options.

Execute ZooKeeper commands using command-line interface.

Enable ZooKeeper audit logging.

Install and configure a basic ZooKeeper cluster to play with it.

Install standalone ZooKeeper server to play with it.

Deal with missing snapshot after ZooKeeper upgrade from version 3.4 to 3.5 or later.

Install Cluster Manager for Apache Kafka, previously known as Kafka Manager on Debian Bullseye.