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Sometimes, the issue is caused by file descriptors definition
This article is for Artica v4.30 With Service Pack instable or Artica v4.40
For Artica v4.30 Service Pack 206 or 208 see this article
A file descriptor is a number that uniquely identifies an open file in a computer's operating system. It describes a data resource, and how that resource may be accessed.
This means that if your proxy reaches the file descriptor limit, it will not be able to create new network connections or open files.
There are two limitations:
- The first is that the proxy limits itself to a certain number of file descriptors to avoid overloading the system.
- The second is the number of file descriptors loaded by the system itself, i.e. all applications
¶ Increase the filedescriptors value
Filedescriptors settings can be modified using:
- On the left menu, choose “
Your Proxy” / “Filedescriptors”
- If it is the case, modify values in the Filedescriptors ( proxy ) and Filedescriptors (system ) field.
Filedescriptors (system ) must always be higuer or same value than Filedescriptors ( proxy ) - Click on Apply, the proxy service will be restarted.
As you can see, we have set the value to 4352 and the real value is 13056.
This because we have created 3 proxy instances in order to bind 3 CPUs so 4352 x 3 = 13056
¶ Get the file descriptors statistics.
It is important to visualize the load of your file descriptors in order to evaluate if at certain times of the day you reach the maximal limit
- On the dashboard, click on the filedescriptors link
A new window appears allowing you to visualize the consumption growth of your file descriptors
