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.