1、启动用户为非root 用户
2、
ERROR: [2] bootstrap checks failed
[1]: max file descriptors [65535] for elasticsearch process is too low, increase to at least [65536]
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
elasticsearch启动时遇到的错误
问题翻译过来就是:elasticsearch用户拥有的内存权限太小,至少需要262144;
解决:
切换到root用户
执行命令:
sysctl -w vm.max_map_count=262144
查看结果:
sysctl -a|grep vm.max_map_count
显示:
vm.max_map_count = 262144
上述方法修改之后,如果重启虚拟机将失效,所以:
解决办法:
在 /etc/sysctl.conf文件最后添加一行
vm.max_map_count=262144
即可永久修改
3、
解决方案:
vim /etc/security/limits.conf 文件默认是65535 ,修改其配置信息
4、
org.elasticsearch.cluster.block.ClusterBlockException: blocked by: [FORBIDDEN/12/index read-only / allow delete (api)]
PUT /_settings
{
"index.blocks.read_only_allow_delete": null
}