Can you give some details, please? E.g. some configuration detail,  what do you see on the statistics output?
I have one or two things in mind that can help.

Gabor
From: syslog-ng <syslog-ng-bounces@lists.balabit.hu> on behalf of Faine, Mark R. (MSFC-IS40)[NICS] <mark.faine@nasa.gov>
Sent: Monday, August 5, 2019 20:58
To: Syslog-ng users' and developers' mailing list <syslog-ng@lists.balabit.hu>
Subject: [syslog-ng] Syslog-ng stops writing until restarted
 
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I have a strange problem where logs are definitely coming in over tcp and udp however they are not written, well not until I restart the server.  Whenever I restart the logs are written but shortly after starting they stop until the server is restarted again.

 

Any ideas on where I can look?

 

Thanks,

-Mark