On Thu, 29 Jan 2009, [email protected] wrote: > On Thu, 29 Jan 2009, Rainer Gerhards wrote: > >>> >>> congradulations on tracking down a nasty and subtle issue. >> >> Thanks - but let's first see if this was the only issue and if things >> run smooth everywhere. But it looks very promising. >> > > bad news, on my system the HUP doesn't always reopen the files now. > > high speed box receiving messages via UDP, idle except for a gzip > compressing the files (which are rotated once a min), the system runs fine > for a few min (higher performance than before, it's now writing ~93,000 > messages/sec instead of ~78,000 messages/sec), but it sometimes mangles > handling a HUP and gets stuck. I have to do a kill -9 to kill and restart > it. > > this is with the new HUP behavior.
interesting note on memory useage. I'm using the default fixed array queue type on this box with a 1K max message length. if I hammer the box with a steady ~120K messages/sec (while it can write 93K/sec) the queue builds up to where it takes ~12G of ram. at this point the throughput takes a nose dive (not just dropping inbound packets, but also the number of packets written is much less) if I kill the sender, it starts emptying it's queue (interestingly, not quite as fast as if it is also recieving some messages), but the memory isn't freed up until I start sending it messages again. David Lang _______________________________________________ rsyslog mailing list http://lists.adiscon.net/mailman/listinfo/rsyslog http://www.rsyslog.com
