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Kafka-Manager Web UI not loading.
I have started kafka-manager on centos VM and below are its logs. [info] o.a.z.ZooKeeper - Client environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib [info] o.a.z.ZooKeeper - Client environment:java.io.tmpdir=/tmp [info] o.a.z.ZooKeeper - Client environment:java.compiler=<NA> [info] o.a.z.ZooKeeper - Client environment:os.name=Linux [info] o.a.z.ZooKeeper - Client environment:os.arch=amd64 [info] o.a.z.ZooKeeper - Client environment:os.version=3.10.0-862.el7.x86_64 [info] o.a.z.ZooKeeper - Client environment:user.name=root [info] o.a.z.ZooKeeper - Client environment:user.home=/root [info] o.a.z.ZooKeeper - Client environment:user.dir=/root/Confluent_kafka/kafka-manager-1.3.3.21 [info] o.a.z.ZooKeeper - Initiating client connection, connectString=localhost:3181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@73687e45 [info] o.a.z.ClientCnxn - Opening socket connection to server localhost/127.0.0.1:3181. Will not attempt to authenticate using SASL (unknown error) [info] o.a.z.ClientCnxn - Socket connection established to localhost/127.0.0.1:3181, initiating session [info] k.m.a.KafkaManagerActor - zk=localhost:3181 [info] k.m.a.KafkaManagerActor - baseZkPath=/kafka-manager [info] o.a.z.ClientCnxn - Session establishment complete on server localhost/127.0.0.1:3181, sessionid = 0x16565ff95660000, negotiated timeout = 60000 [info] k.m.a.KafkaManagerActor - Started actor akka://kafka-manager-system/user/kafka-manager [info] k.m.a.KafkaManagerActor - Starting delete clusters path cache... [info] k.m.a.DeleteClusterActor - Started actor akka://kafka-manager-system/user/kafka-manager/delete-cluster [info] k.m.a.DeleteClusterActor - Starting delete clusters path cache... [info] k.m.a.KafkaManagerActor - Starting kafka manager path cache... [info] k.m.a.DeleteClusterActor - Adding kafka manager path cache listener... [info] k.m.a.DeleteClusterActor - Scheduling updater for 10 seconds [info] k.m.a.KafkaManagerActor - Adding kafka manager path cache listener... [info] play.api.Play - Application started (Prod) [info] p.c.s.NettyServer - Listening for HTTP on /0.0.0.0:9000 [info] k.m.a.KafkaManagerActor - Updating internal state... [info] k.m.a.KafkaManagerActor - Updating internal state... [info] k.m.a.KafkaManagerActor - Updating internal state... [info] k.m.a.KafkaManagerActor - Shutting down kafka manager
Tha kafka manager starts perfectly but the WEB UI does not load at all. The IPV6 is disabled and the netstat shows this tcp 0 0 0.0.0.0:9000 0.0.0.0:* LISTEN 2670/java
Can someone help in this.
Thanks, Anuja
I did some research on my machine settings and found that firewall was blocking the web ui port. After disabling it, the web-ui loaded.
Incase you are using supervisord and this issue comes up - try removing the kafka-manager/RUNNING_PID file, and restart the process.
2023-02-09 14:04:38,728 - [INFO] k.m.a.KafkaManagerActor - baseZkPath=/kafka-manager 2023-02-09 14:04:38,747 - [INFO] o.a.z.ClientCnxn - Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error) 2023-02-09 14:04:38,764 - [INFO] o.a.z.ClientCnxn - Socket connection established, initiating session, client: /127.0.0.1:53978, server: localhost/127.0.0.1:2181 2023-02-09 14:04:38,844 - [INFO] o.a.z.ClientCnxn - Session establishment complete on server localhost/127.0.0.1:2181, sessionid = 0x100222a1cbf0001, negotiated timeout = 60000 2023-02-09 14:04:38,911 - [INFO] k.m.a.DeleteClusterActor - Started actor akka://kafka-manager-system/user/kafka-manager/delete-cluster 2023-02-09 14:04:38,912 - [INFO] k.m.a.DeleteClusterActor - Starting delete clusters path cache... 2023-02-09 14:04:38,916 - [INFO] k.m.a.KafkaManagerActor - Started actor akka://kafka-manager-system/user/kafka-manager 2023-02-09 14:04:38,917 - [INFO] k.m.a.KafkaManagerActor - Starting delete clusters path cache... 2023-02-09 14:04:38,935 - [INFO] k.m.a.KafkaManagerActor - Starting kafka manager path cache... 2023-02-09 14:04:38,942 - [INFO] k.m.a.DeleteClusterActor - Adding kafka manager path cache listener... 2023-02-09 14:04:38,942 - [INFO] k.m.a.DeleteClusterActor - Scheduling updater for 10 seconds 2023-02-09 14:04:38,950 - [INFO] k.m.a.KafkaManagerActor - Adding kafka manager path cache listener... 2023-02-09 14:04:39,245 - [INFO] play.api.Play - Application started (Prod) 2023-02-09 14:04:39,935 - [INFO] p.c.s.AkkaHttpServer - Listening for HTTP on /0:0:0:0:0:0:0:0:9000
The WebUI doesnt load on http://<SERVER_IP>:9000
netstat shows
Active Internet connections (w/o servers) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 localhost:58050 localhost:9000 ESTABLISHED tcp6 1 0 localhost:42842 okoyama:9092 CLOSE_WAIT tcp6 78 0 localhost:9000 localhost:58050 ESTABLISHED tcp6 1 0 localhost:44012 localhost:3000 CLOSE_WAIT tcp6 0 0 localhost:2181 localhost:36328 ESTABLISHED tcp6 1 0 localhost:53978 localhost:2181 CLOSE_WAIT tcp6 0 0 localhost:36328 localhost:2181 ESTABLISHED
