Scan Engine 5.2.10 on Linux hangs when receiving 1000+ messages per second

Article:TECH190615  |  Created: 2012-06-08  |  Updated: 2012-06-08  |  Article URL
Article Type
Technical Solution



Clients are not able to connect to Scan Engine on port 1334. Scan Engine fails to complete the TCP handshake and return a status of ‘Server Too Busy’.

netstat results on the client side show connections in a SYN_SENT state.
netstat results on the Scan Engine side show port 1334 connections in either FIN_WAIT or SYN_RECV state.

In short, Scan Engine fails to respond to input, or 'hang'.


- Scan Engine 5.2.11 or earlier



One or more of the listener threads died.



Scan Engine Engineering resolved this issue in Scan Engine 5.2.13. Please upgrade to SSE 5.2.13 or later.

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