Elasticsearch报错

Elasticsearch报错

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

编辑 /etc/security/limits.conf，追加以下内容；
* soft nofile 65536
* hard nofile 65536
此文件修改后需要重新登录用户，才会生效

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

编辑 /etc/sysctl.conf，追加以下内容：
vm.max_map_count=655360
保存后，执行：
sysctl -p

[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

修改 elasticsearch.yml 如下：
取消注释保留一个节点：
node.name: node-1
cluster.initial_master_nodes: ["node-1"]