内存不够，需要改配置并重启服务器
vim /etc/sysctl.conf
//在最后一行上加上
vm.max_map_count=262144
postgresql问题
fixing permissions on existing directory /var/lib/postgresql/data … ok
creating subdirectories … ok
selecting default max_connections … 100
selecting default shared_buffers … 128MB
selecting dynamic shared memory implementation … posix
creating configuration files … ok
LOG: could not link file “pg_xlog/xlogtemp.22” to “pg_xlog/000000010000000000000001”: Operation not permitted
FATAL: could not open file “pg_xlog/000000010000000000000001”: No such file or directory
child process exited with exit code 1
initdb: removing contents of data directory “/var/lib/postgresql/data”
creating template1 database in /var/lib/postgresql/data/base/1 … The files belonging to this database system will be owned by user “postgres”.
This user must also own the server process.
报错not permitted
需要在docker新建一个持久化volume
创建Volume虚拟磁盘：docker volume create –name <名称>
删除Volume虚拟磁盘：docker volume rm <名称>
- docker volume create *–name postgresql
- docker run –name mongodb -v postgresql:/data/db -p 27017:27017 -d postgresql