FAILED TO START, zookeeper failed to start

Zookeeper startup failed FAILED TO START
First check whether there is a problem with the data path

After checking my configuration, there is no problem

Then check the log file

Reading configuration from: /usr/local/zookeeper/bin/../conf/zoo.cfg
2020-10-28 20:13:51,564 [myid:] - ERROR [main:QuorumPeerMain@98] - Invalid config, exiting abnormally

Reading the log can understand that an error occurred after reading the configuration file zoo.cfg, Invalid config, exiting abnormally, and invalid configuration.

Then I found that the name of the configuration file under my conf is zoo_sample.cfg (default), and the name of the file that starts reading is zoo.cfg

So the problem is solved after modifying the configuration file name

mv zoo_sample.cfg zoo.cfg