docker logs elasticsearch
... ...
ERROR: [1] bootstrap checks failed
[1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
ERROR: Elasticsearch did not exit normally - check the logs at /usr/share/elasticsearch/logs/docker-cluster.log
... ...
临时修改
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
永久修改：
解决办法：
在 /etc/sysctl.conf文件最后添加一行
vm.max_map_count=262144
docker vm.max_map_count [65530] is too low
原文：https://blog.51cto.com/14922620/2575417