Neo4j拒绝连接

Question

特性:

Linux 
Neo4j version 3.2.1 
Access on remote 

安装

我安装了neo4j并给出了文件夹chmod 777。我在我的机器上远程运行它，我已经启用了非本地访问，执行NEo4j启动，我得到了以下消息

Active database: graph.db
Directories in use:
  home:         /home/cloudera/Muna/apps/neo4j
  config:       /home/cloudera/Muna/apps/neo4j/conf
  logs:         /home/cloudera/Muna/apps/neo4j/logs
  plugins:      /home/cloudera/Muna/apps/neo4j/plugins
  import:       /home/cloudera/Muna/apps/neo4j/import
  data:         /home/cloudera/Muna/apps/neo4j/data
  certificates: /home/cloudera/Muna/apps/neo4j/certificates
  run:          /home/cloudera/Muna/apps/neo4j/run
Starting Neo4j.
WARNING: Max 1024 open files allowed, minimum of 40000 recommended. See the Neo4j manual.
Started neo4j (pid 9469). It is available at http://0.0.0.0:7474/
There may be a short delay until the server is ready.
See /home/cloudera/Muna/apps/neo4j/logs/neo4j.log for current status.

而且它不是在浏览器中连接。运行neo4j控制台

# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (malloc) failed to allocate 409600000 bytes for AllocateHeap
# An error report file with more information is saved as:
# /home/cloudera/hs_err_pid18598.log

问题从何而来？

Answer 1

首先，应该将最大打开的文件设置为40000，这是建议的值。那你就不会收到警告。像这样：http://neo4j.com/docs/1.6.2/configuration-linux-notes.html

其次，“未能分配内存”意味着Java虚拟机无法分配启动它的内存。这可能是一个错误的配置，或者你的身体没有足够的内存。请在这里阅读内存大小调整指南：https://neo4j.com/docs/operations-manual/current/performance/