ElasticSearch启动报错总结 （不断更）

1.

ERROR: [1] bootstrap checks failed:max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

解决方案:

1. su - root 切换root账户
2. vim /etc/sysctl.conf 编辑此文件 添加  vm.max_map_count=262144 在文件末尾
3. 执行/sbin/sysctl -p 立即生效
4. 重新启动即可

2.

RROR: [1] bootstrap checks failed：the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured

解决方案:

1. 切换到config目录
2. 编辑 vim elasticsearch.yml
3. 修改 discovery下的 cluster.initial_master_nodes: ["node-1","node-2"] 
4. 将注释打开，并去掉"node-2"修改成cluster.initial_master_nodes: ["node-1"] 

3.

RROR: [1] bootstrap checks failed:

max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535]

解决方案: 将当前用户的软硬限制调大

1.su - root 切换到root账户

2.vim /etc/security/limits.conf 编辑内容

3.文件末尾添加内容如下：

* soft nofile 65536
* hard nofile 65536