Re: FreeBSD: syslog-ng: I/O error occurred while writing; fd='xx', error='No buffer space available (yy)'

2012-03-23 Thread Mark Blackman
On 22 Mar 2012, at 11:40, Traiano Welcome wrote: That's what I thought as well, but it's the details that evade me. Almost all traffic to and from this server is UDP (syslog), the graph I sent earlier shows the kind of volumes and trends that are typical: Peak traffic during the problem

Re: FreeBSD: syslog-ng: I/O error occurred while writing; fd='xx', error='No buffer space available (yy)'

2012-03-23 Thread Traiano Welcome
Hi Mark On 22/03/2012 13:54, Mark Blackman m...@exonetric.com wrote: On 22 Mar 2012, at 11:40, Traiano Welcome wrote: That's what I thought as well, but it's the details that evade me. Almost all traffic to and from this server is UDP (syslog), the graph I sent earlier shows the kind of

Re: FreeBSD: syslog-ng: I/O error occurred while writing; fd='xx', error='No buffer space available (yy)'

2012-03-23 Thread Mark Blackman
On 23 Mar 2012, at 08:58, Traiano Welcome wrote: Hi Mark On 22/03/2012 13:54, Mark Blackman m...@exonetric.com wrote: On 22 Mar 2012, at 11:40, Traiano Welcome wrote: Somehow this doesn't strike me as a large volume of throughput Š Ok, fair enough. You might try simulating the

FreeBSD: syslog-ng: I/O error occurred while writing; fd='xx', error='No buffer space available (yy)'

2012-03-22 Thread Traiano Welcome
Hi List I've been seeing the following in the messages log of my freebsd syslog server for quite some time now: --- Mar 20 12:19:12 syslog2 syslog-ng[35313]: I/O error occurred while writing; fd='12', error='No buffer space available (55)' Mar 20 12:19:12 syslog2 syslog-ng[35313]: Connection

Re: FreeBSD: syslog-ng: I/O error occurred while writing; fd='xx', error='No buffer space available (yy)'

2012-03-22 Thread Da Rock
On 03/22/12 19:00, Traiano Welcome wrote: Hi List I've been seeing the following in the messages log of my freebsd syslog server for quite some time now: --- Mar 20 12:19:12 syslog2 syslog-ng[35313]: I/O error occurred while writing; fd='12', error='No buffer space available (55)' Mar 20

Re: FreeBSD: syslog-ng: I/O error occurred while writing; fd='xx', error='No buffer space available (yy)'

2012-03-22 Thread Mark Blackman
On 22 Mar 2012, at 09:00, Traiano Welcome wrote: My question is: What does this error mean, and how can I resolve it? From a very casual inspection of the problem, I'd say you're pushing out syslog messages faster than the kernel can get them out the interface. How many syslog messages

Re: FreeBSD: syslog-ng: I/O error occurred while writing; fd='xx', error='No buffer space available (yy)'

2012-03-22 Thread Traiano Welcome
Hi Mark On 22/03/2012 11:52, Mark Blackman m...@exonetric.com wrote: On 22 Mar 2012, at 09:00, Traiano Welcome wrote: My question is: What does this error mean, and how can I resolve it? From a very casual inspection of the problem, I'd say you're pushing out syslog messages faster