ELK搭建问题记录-Elasticsearch

Elasticsearch:

1、Caused by: com.fasterxml.jackson.dataformat.yaml.snakeyaml.error.MarkedYAMLException: expected '<document start>', but found BlockMappingStart
 in 'reader', line 55, column 1:
    network.host: 0.0.0.0

    ^

配置前未加空格

2、Caused by: java.lang.RuntimeException: can not run elasticsearch as root

不能用root账号启动es服务，需要切换到其他账号

3、max number of threads [2048] for user [supdev] is too low, increase to at least [4096]

修改vi /etc/security/limits.d/90-nproc.conf   

4、max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

修改