Maximum number of files opened by linux users

[Toomanyopenfiles] is reported in the product Today. the related knowledge is as follows. View the maximum number of files allowed to be opened by the system # cat/proc/sys/fs/file-max view the maximum number of files allowed to be opened by each user ulimit-a found that the default system is openfiles (- n) 1024 ,...
[Too program open files] is reported in the product Today. the related knowledge is as follows. View the maximum number of files allowed to be opened by the system # cat/proc/sys/fs/file-max view the maximum number of files allowed to be opened by each user ulimit-a found that the default system is open files (-n) 1024, the problem occurs here. In the system file/etc/security/limits. modify the limit in conf and add the following content to the File: * soft nofile 65536 * hard nofile 65536 www.2cto.com 1. use ps-ef | grep java (java represents your program, view your program process) to view your process ID, record the ID number, and assume that the process ID is 122. run: lsof-p 12 | wc-l to view the file operation status of the current process id 12. run this command and the file usage is 10523. run the command: ulimit-a to view the maximum number of files that each user can open. the default value is open files (-n) 1024. 4. run ulimit-n 4096 to set open files (-n) 1024 to open files (-n) 4096, which increases the maximum number of files that a user can open, setting ulimit for each user connected to ssh does not affect each other. Now, the solution of our product is to add ulimit-n 65535 to the startup script sh. of course, this is only necessary. In general, we should first check the file stream closure. Author and artist