brew services restart zookeeper

brew services restart zookeeper && brew services restart kafka

brew services restart zookeeper
==> Successfully stopped `zookeeper` (label: homebrew.mxcl.zookeeper)
==> Successfully started `zookeeper` (label: homebrew.mxcl.zookeeper)

brew services info zookeeper && brew services info kafka

Apache Zookeeper: zookeeper, zookeeper-shell, zkcli, zkserver, zkServer-initialize, zkSnapShotToolkit, zkSnapshotComparer, zkTxnLogToolkit, zkCleanup, zoo.cfg, zookeeper-server-start