Dolphinscheduler: Zookeeper management interface in monitoring center displays abnormal

Created on 27 Apr 2020 · 9Comments · Source: apache/dolphinscheduler

Describe the bug
Zookeeper management interface in monitoring center displays abnormal。In fact, zookeepeer is running normally, both master and worker are successfully registered in zookeeper

To Reproduce
1、After normal installation and deployment, log in to the dolphinscheduler web interface
2、Check the zookeeper management interface of the monitoring center, you can find this problem

Expected behavior
It can display various monitoring indicators of zookeeper normally

Screenshots

Which version of Dolphin Scheduler:
-[1.2.0]

FAQ bug

Source

lishuaiyan

Most helpful comment

hello ,maybe is zk FourLetterWord problem,
you can try try command as follow

echo ruok|nc localhost 2181
if has the words, maybe you modify zoo.cfg

ruok is not executed because it is not in the whitelist.

add config in zoo.cfg
4lw.commands.whitelist=*

restart zk

tips : if has not nc,you can yum install nc

samz406 on 28 Apr 2020

👍3 🚀1

All 9 comments

please see api server log

qiaozhanwei on 28 Apr 2020

hello ,maybe is zk FourLetterWord problem,
you can try try command as follow

echo ruok|nc localhost 2181
if has the words, maybe you modify zoo.cfg

ruok is not executed because it is not in the whitelist.

add config in zoo.cfg
4lw.commands.whitelist=*

restart zk

tips : if has not nc,you can yum install nc

samz406 on 28 Apr 2020

👍3 🚀1

I find some documentations, FYI:
https://issues.apache.org/jira/browse/ZOOKEEPER-2764

tlhhup on 4 May 2020

❤1 👍1

hello ,maybe is zk FourLetterWord problem,
you can try try command as follow

echo ruok|nc localhost 2181
if has the words, maybe you modify zoo.cfg

ruok is not executed because it is not in the whitelist.

add config in zoo.cfg
4lw.commands.whitelist=*

restart zk

tips : if has not nc,you can yum install nc

very good job， this solve the problem