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Syslog Sensor Message Queries Failing



We are using a syslog sensor in PRTG, retaining 6 months worth of syslogs, and basically logging EVERYTHING that crosses our network. Huge amount of log files.

Up until yesterday, I could run a query against the messages, going back months, with several filters...no problem. Query might take 5-10 minutes, but it would run.

Upgraded PRTG yesterdya, now on version

Now queries timeout after 1 minute, just says : "Processing Timeout . Sorry, processing your request took too long."

Where is the timeout of 1 minute coming from? Why did that change with an upgrade? I don't care how long the request takes, finish please....

prtg sensor syslog

Created on Mar 12, 2019 11:46:16 PM

3 Replies




Let me check with my devs about this.

Benjamin Day
Paessler Support

Created on Mar 13, 2019 10:28:18 PM by  Benjamin Day [Paessler Support] (1,441) 2 1




Here is the response I got from my developers.

We did some bugfixes and improvements in this area to prevent hanging requests.

There is a registry value that can adjust the timeout: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Paessler\PRTG Network Monitor\Probe


This has a default of 60s.

The "UDPMessageLimitCount" is the number of queries that are allowed to run at the same time with a default of 3

Please feel free to adjust these registry keys. Once you make a change, please restart the PRTG Probe Service for the new setting to take effect. Let me know if these help you.

Benjamin Day
Paessler Support

Created on Mar 21, 2019 7:38:26 AM by  Benjamin Day [Paessler Support] (1,441) 2 1



That did the trick!

Thank you very much!


Created on Mar 21, 2019 8:25:32 PM

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