Neo4j需要的打开文件数量超过大多数Linux发行版规定的最大限制.您应该增加限制，在/etc/security/limits.conf文件中添加以下几行:

Neo4j requires more open files than the maximum limit imposed by most of Linux distributions. You should increase the limit adding the following lines to the /etc/security/limits.conf file:

neo4j   soft    nofile  40000
neo4j   hard    nofile  40000

您也可以查看此链接以了解更多细节.

You can also look at this link for more details.