<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hey Nagios Folks,<div><br></div><div>We're seeing some strange behavior with a few of our nrpe plugins and am wondering if anyone has any ideas on how to work on the problem.</div><div><br></div><div>We are running OS X 10.5.6 with NRPE 2.12 and NRPE plugins 1.4.13.</div><div><br></div><div>We have some plugins written in Ruby (boss loves it, I am learning it :-)) that work fine with a freshly started nrpe daemon. Start up nrpe on the client, force checks from the gui, see a green nagios console, nice. But after a while in the console under "Status Information" we start seeing "NRPE: unable to read output" rather than our normal success messages. Bounce the nrpe on the client, force the check through the gui, and things start working again for a while. </div><div><br></div><div>While seeing the errors I can still run the plugin on the client no problem but when I try to run it from the server via command line (/usr/local/nagios/libexec/check_nrpe -H IP.of.client -c command) I see the error "NRPE: unable to read output".</div><div><br></div><div>Another data point - We have one system where things were working fine but we needed to start passing params to nrpe. I recompiled after running ./configure --enable-command-args and setting dont_blame_nrpe=1 in the nrpe.cfg. Start up a new nrpe and it works fine, can pass params from the server no problem...but the a check that was working fine for weeks starts throwing<span class="Apple-style-span" style="font-family: Verdana; font-size: 13px; "> "<span class="Apple-style-span" style="font-family: Helvetica; font-size: 14px; ">NRPE: unable to read output" after 3 or 4 successful invocations. Arg!! I had to rollback to the previous nrpe and check_nrpe.</span></span></div><div><br></div><div>I am trying to set nrpe debug on in nrpe.cfg on the client and then bounce nrpe but i don't see any more messages in /var/log/system.log as compared to when I run with nrpe debug turned off. It's like turning on debug has no effect. </div><div><br></div><div>I am curious about 2 issues - 1) why no extra messages in the system log file with debug enabled? and 2) Anyone seen anything like this happening where nrpe plugins work fine for a while then start throwing the error?</div><div><br></div><div>TIA</div><div><br></div><div>kyle </div><div><br></div><div><br></div></body></html>