1楼：2、查看集群状态
# curl 'localhost:9200/_cat/nodes?v'

http://cache.bai ..

2楼：五、logstash连接elasticsearch报错503
# ./bin/logstash -e 'input { stdin { } } outp ..

3楼：https://blog.csdn.net/f95_sljz/article/details/104003141