[2018-10-18T05:28:57,713][ERROR][o.e.b.Bootstrap ] [node-45] node validation exception
[1] bootstrap checks failed
[1]: memory locking requested for elasticsearch process but memory is not locked
vim /etc/elasticsearch/elasticsearch.yml
bootstrap.memory_lock: true
加這么一條跟其他的關系不大
cat /usr/lib/systemd/system/elasticsearch.service
LimitMEMLOCK=infinity