MFT Proxy High CPU Utilization (Doc ID 2289205.1)

Last updated on AUGUST 09, 2017

Applies to:

Oracle Managed File Transfer - Version 12.2.1.0.0 and later
Information in this document applies to any platform.

Symptoms

In the DMZ, there is an external load-balancer (GTM DNS Based) that routes external traffic to four MFT_Proxies that run on four different servers also in the DMZ, and these pass the traffic on to an F5 Hardware load-balancer that is internal behind the firewall (NOT in DMZ) and that F5 passes the traffic onto MFT Managed servers.

High CPU utilization (98%+) is being seen for the MFT Proxy processes approximately 12-24 hours after startup of the proxies.

This issue doesn't happen if the MFT Proxies connect direct to the MFT managed servers, i.e. bypass the F5 load balancer that sits between the MFT Proxies and the MFT managed servers.

STEPS
-----------------------
The issue can be reproduced at will with the following steps:
1. Run the MFT_Proxy processes and after startup, they steadily increase CPU utilization until reaching 98%+ approximately 12 to 24 hours later.

Cause

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