Re: [syslog-ng]syslog-ng mysteriously exits

John Coke writes:

Syslog-ng-1.4.14 on a redhat 7.2 server is mysteriously crashing/exiting and I am having trouble tracing the problem. There is no core and when I run the service in debug, it does not exit. It normally exits within 2 or three hours. What can I do next to try and find the problem?

Have you tried attaching to it with strace? That will slow it down, but it won't change any code paths like the -d option does. Do something like "strace -o outputfile -p <syslog-ng-process" and see what's in "outputfile" after syslog-ng exits (if it indeed does exit). If you don't have the disk space, you could kill the strace process every hour or so and restart it - the daemon being traced shouldn't notice anything.