tsung cluster error:too few file descriptors available

Question

I'am using tsung's cluster. I have modified the limits of file descriptors. The node which I take it as the slave will report errors:

ts_launcher:(2:<0.49.0>) WARNING !!! too few file descriptors available (1024), you should decrease maxusers (currently 60000)

Can anyone give some help?

Answer 1

Try the following steps

1. First, check the current system limit for file descriptors:

   cat /proc/sys/fs/file-max
   

2. If the setting is lower than 64000, edit the /etc/sysctl.conf file, and reset the fs.file-max parameter:

   fs.file-max = 64000
   

3. Then increase the maximum number of open files on the system by editing the /etc/security/limits.conf configuration file. Add the following entry:

   *        -        nofile        8192
   

4. Edit the /etc/pam.d/system-auth, and add this entry:

   session required /lib/security/$ISA/pam_limits.so
   

5. Reboot the machine to apply the changes.

   reboot
   

Answer 2

On CentOS/RHEL, change the file descriptor limit in /etc/security/limits.conf

sudo vi /etc/security/limits.conf
* soft nofile 64000
* hard nofile 64000

Reboot the machine:

sudo reboot

Check the limit again:

ulimit -n
64000