Server bytes increase while client bytes are static

Products

• ProxySG Software - SGOS

Issue/Introduction

In some cases, you might see (Statistics > Session > Active Sessions > Proxied Sessions) the server bytes increasing even after the client has closed the connection. 

Cause

This can occur when a client requests a large object and aborts the download before receiving the entire object. The server bytes increase because the ProxySG continues to retrieve the object for caching.

Resolution

To prevent the EdgeSWG from retrieving an object that a client has canceled you can enable Bandwidth Gain Mode as follow:

To enable the bandwidth gain mode:
1. Select Configuration > Proxy Settings > HTTP Proxy > Acceleration Profile.
2. Select Enable Bandwidth Gain Mode.
3. Click Apply.

Alternatively add the following policy:
<cache>
delete_on_abandonment(yes)