Fpolicy server connection resets if SCREEN REQUEST takes more time to process

SURESHDULANGE — Thu, 05 Jun 2025 05:33:24 GMT

Hi,

We are facing a fpolicy connection problem.

Problem : Our F-Policy server is expected to take upto 30 mins to process SCREEN requests for bigger files. In such cases, NetApp C-mode filer resets the connection with F-Policy server after some time.

Is there any way which we can use in such case, so that NetApp C-Mode filer will not reset the connection.

What we have tried :

We were relying on following arguments in the api fpolicy-policy-external-engine-create. But what we realized is, actual range for these arguments is far less than their documented range.

Argument name	Description	Documented range	Actual range
request-cancel-timeout	Timeout in seconds for the FPolicy server to process a screen request Default value set for this field is 20 seconds.	[0…2^32-1]	0s-100s
request-abort-timeout	Timeout in seconds before a cluster node aborts a screen request Default value set for this field is 40 seconds.	[0…2^32-1]	0s-200s
server-progress-timeout	Timeout in seconds in which a throttled FPolicy server must complete at least one screen request If no request is processed within the timeout, Data ONTAP terminates the connection to the FPolicy server. The default value set for this field is 60 seconds.	[0…2^32-1]	1s-100s

These values are taken from the document “FPolicy SDK for ONTAP Cluster Mode.pdf”.

Thank you,

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Fpolicy server connection resets if SCREEN REQUEST takes more time to process