<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Exchange Server">  <style></style> </head> <body> <font face="Calibri" size="2"><span style="font-size:11pt;"> <div><font color="#1F497D">Interesting follow-up, I found it I use 8192 it seems to be very stable, above that things don’t work right. Not sure what it means yet, just thought it was interesting.</font></div> <div><font color="#1F497D"> </font></div> <div><font color="#1F497D">Dan</font></div> <div><font face="Times New Roman" color="#1F497D"> </font></div> <div><font face="Tahoma" size="2"><span style="font-size:10pt;">_____________________________________________<br> <b>From:</b> Daniel Wittenberg <br> <b>Sent:</b> Tuesday, March 29, 2011 11:08 AM<br> <b>To:</b> 'nagiosplug-devel@lists.sourceforge.net'<br> <b>Subject:</b> NRPE larger buffers </span></font></div> <div><font face="Times New Roman"> </font></div> <div><font face="Times New Roman"> </font></div> <div>I’ve seen this problem posted from many sources over the years, but alas, there is no way to dynamically adjust the NRPE buffers in the main code.</div> <div> </div> <div>I updated nrpe-2.12/include/common.h:</div> <div> </div> <div>#define MAX_INPUT_BUFFER 20480</div> <div> </div> <div>#define MAX_PACKETBUFFER_LENGTH 20480</div> <div> </div> <div>I can then use check_nrpe to talk to our nslclient (with string_length=20480) and everything appears to work fine. However, when talking to nrpe, even localhost, I still get some CRC failure messages. For the heck of it I disabled that fatal return code, and sometimes it works, sometimes it doesn’t. Any clue why crc would sometimes fail and sometimes not ? I looked at the code but didn’t see anything obvious. There was a nice patch from op5 for nrpe:</div> <div> </div> <div><font face="Times New Roman"><a href="http://labs.opsview.com/2008/08/enhancing-nrpe-for-large-output/"><font face="Calibri" color="blue"><u>http://labs.opsview.com/2008/08/enhancing-nrpe-for-large-output/</u></font></a></font></div> <div><font face="Times New Roman"> </font></div> <div>But there’s no patch for nsclient to do this and since I have multi-platforms to support that doesn’t work so well for me. Any other clues how to get this to work stable with larger buffer sizes?</div> <div><br> Dan</div> <div> </div> <div><font face="Times New Roman"> </font></div> <div><font face="Times New Roman"> </font></div> </span></font> </body> </html>