java - 无法为 Wildfly 增加 "Max open files"而 ulimit 已更改为 unlimit

Question

我正在使用 Wildfly 开发 Ubuntu 16.04。我收到一个错误“原因:java.net.SocketException:打开的文件太多”。因此，我将所有用户的 ulimit 更改为 ulimited。

core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 128429
max locked memory       (kbytes, -l) 16384
max memory size         (kbytes, -m) unlimited
open files                      (-n) 65535
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 8192
cpu time               (seconds, -t) unlimited
max user processes              (-u) 65535
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

在/etc/security/limits.conf

* soft     nproc          65535
* hard     nproc          65535
* soft     nofile         65535
* hard     nofile         65535
root soft     nproc          65535
root hard     nproc          65535
root soft     nofile         65535
root hard     nofile         65535

问题是另一个java进程得到了一个新的打开文件值(65535)，除了wildfly

 cat /proc/1717/limits
Limit                     Soft Limit           Hard Limit           Units
Max cpu time              unlimited            unlimited            seconds
Max file size             unlimited            unlimited            bytes
Max data size             unlimited            unlimited            bytes
Max stack size            8388608              unlimited            bytes
Max core file size        0                    unlimited            bytes
Max resident set          unlimited            unlimited            bytes
Max processes             128429               128429               processes
Max open files            4096                 4096                 files
Max locked memory         16777216             16777216             bytes
Max address space         unlimited            unlimited            bytes
Max file locks            unlimited            unlimited            locks
Max pending signals       128429               128429               signals
Max msgqueue size         819200               819200               bytes
Max nice priority         0                    0
Max realtime priority     0                    0
Max realtime timeout      unlimited            unlimited            us

我已经重启了服务器。请告诉我如何解决这个问题

Answer 1

JBoss 的最大进程 ulimit可以根据服务器每天收到的负载来设置，但标准大小是 65536，openfiles 也可以设置超过 65536。我们对并发用户进行了负载测试和每秒最大点击数来得出数字。

查看 JBoss ulimit :

jboss@user1>ulimit -aS ---> soft limit
jboss@user1>ulimit -aH ---> hard limit