Too many open files
今日发现产品后台报错:
java.net.SocketException: Too many open files
at java.net.PlainSocketImpl.socketAccept(Ljava.net.SocketImpl;)V(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
at java.net.ServerSocket.implAccept(ServerSocket.java:450)
at java.net.ServerSocket.accept(ServerSocket.java:421)
at org.apache.jk.common.ChannelSocket.accept(ChannelSocket.java:268)
at org.apache.jk.common.ChannelSocket.acceptConnections(ChannelSocket.java:531)
at org.apache.jk.common.SocketAcceptor.runIt(ChannelSocket.java:660)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run()V(Unknown Source)
经在BD上搜了一下给出以下处理办法:
查看open files 的大小
[root@web2 ~]# ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
max nice (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 69632
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
max rt priority (-r) 0
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) 69632
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
--------------------------------------------------------
修改其大小:
[root@web2 ~]# ulimit -n 4096
[root@web2 ~]# ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
max nice (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 69632
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) unlimited
open files (-n) 4096
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
max rt priority (-r) 0
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) 69632
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited