Configuring Maximum File Descriptors

You can set the maximum file descriptor parameter for all daemon roles. When not specified, the role uses whatever value it inherits from supervisor. When specified, configures soft and hard limits to the configured value.

Minimum Required Role: Configurator (also provided by Cluster Administrator, Limited Cluster Administrator , and Full Administrator)

Go to a service.
Click the Configuration tab.
In the Search box, type rlimit_fds.
Set the Maximum Process File Descriptors property for one or more roles.
Enter a Reason for change, and then click Save Changes to commit the changes.
Restart the affected role instances.
important
After changing the maximum process file descriptor limit as specified in the above steps, you might find that service roles are still limited by the number of file descriptors. Raising the maximum process file descriptors above the Linux kernel file descriptor limit will have no effect. Check the Linux kernel file descriptor limit on every host in the cluster and raise that if necessary.
You can find the Linux kernel file descriptor limit by running the following command on the Linux command line:
sudo cat /proc/sys/fs/nr_open