elasticsearch 启动失败解决: max file descriptors, max virtual memory, the default discovery settings

问题

ERROR: [3] bootstrap checks failed
[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535]
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[3]: 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

解决方法

1. 问题 [1]: max file descriptors... 解决方法
   在 /etc/security/limits.conf 添加

*               soft    nofile          65536
*               hard    nofile          65536

2. 问题 [2]: max virtual memory areas... 解决方法
   在 /etc/sysctl.conf 添加以下内容，再执行命令 sysctl -p

vm.max_map_count=262144

3. 问题 [3]: the default discovery settings... 解决方法
   编辑 elasticsearch.yml 添加以下内容（或取消原有注释）

cluster.initial_master_nodes: ["node-1", "node-2"]

参考

• https://www.cnblogs.com/zhi-leaf/p/8484337.html
• https://blog.csdn.net/happyzxs/article/details/89156068
• https://blog.csdn.net/tanqian351/article/details/83827583