How to check Kafka server status or details?

You can activate JMX metrics by setting environment variable JMX_PORT.

$ export JMX_PORT=9010
$ ./bin/kafka-server-start.sh ./config/server.properties

Then, you can use jconsole or Java Mission Control to display cluster metrics.

If you are looking for the Kafka cluster broker status, you can use zookeeper cli to find the details for each broker as given below:

ls /brokers/ids returns the list of active brokers IDs on the cluster.

get /brokers/ids/<id> returns the details of the broker with the given ID.

Example :

kafka_2.12-1.1.1 % ./bin/zookeeper-shell.sh localhost:2181 ls /brokers/ids
Connecting to localhost:2181

WATCHER::

WatchedEvent state:SyncConnected type:None path:null
[0]

kafka_2.12-1.1.1 % ./bin/zookeeper-shell.sh localhost:2181 get /brokers/ids/0
Connecting to localhost:2181

WATCHER::

WatchedEvent state:SyncConnected type:None path:null
{"listener_security_protocol_map":{"PLAINTEXT":"PLAINTEXT"},"endpoints":["PLAINTEXT://localhost:9092"],"jmx_port":-1,"host":"localhost","timestamp":"1558428038778","port":9092,"version":4}
cZxid = 0x116
ctime = Tue May 21 08:40:38 UTC 2019
mZxid = 0x116
mtime = Tue May 21 08:40:38 UTC 2019
pZxid = 0x116
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x16ad9830f16000b
dataLength = 188
numChildren = 0

You can put these steps in some shell script to get the details for all brokers.