Obviously this isn't a low priority suggestion, but I think it could be a pretty useful in managing large/complex Rsyslog configurations.
On some of my Linux hosts, I have Rsyslog configured such that it can easily hold 20-30 open files at any given time. (I'm using the utility 'lsof', BTW, to list open files, like so: `lsof | gawk '$1 ~ "^rsyslogd$" && $9 ~ "^/var/log/"'`) Since I'm using dynamic templates with date/time elements, the exact list of currently-open files changes from minute to minute. It would be helpful for the Rsyslog daemon to periodically output a list of all the log files (by full path) that it currently holds open. Primarily, I'd use this for log file rotation and similar maintenance tasks, but I could imagine others would find other uses, especially if the output mechanism were generic enough to dump other runtime statistics, too. If Rsyslog kept a count of the number of bytes written to each open file, and included those per-byte counts in the output, another program could monitor log-output rates, to watch out for dangerously high disk I/O loads. I don't really have a fixed idea for the communication mechanism. It could be as simple as having Rsyslog dump the stats to a text file, and add a configuration knob to tell it how many seconds to wait between dumps. The output format wouldn't need to be simple, maybe just a newline-delimited list of file names/stats. If I get some free time, and nobody objects, I may try to implement this. But I'm pretty rusty with C, so I figured I should ask whether the idea floats, first. Ryan B. Lynch [email protected] _______________________________________________ rsyslog mailing list http://lists.adiscon.net/mailman/listinfo/rsyslog http://www.rsyslog.com
