<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Mark and Stuart,<div><span class="Apple-tab-span" style="white-space:pre"> </span>This reply has nothing to do with debug modes, but as to memory usage, occasionally we see processes with memory leaks that slowly eat up more and more memory. Ours are slow leaks, so they probably have nothing to do with yours. Currently one machine has a process that has grown from nothing to 3 GB of resident memory since the first of October. The machine will be going down for maintenance over Thanksgiving, so I am not worried, but thought I would take this opportunity to put the info on it out there.</div><div><br></div><div>top says:</div><div><div> PID USER %MEM PR NI VIRT RES SHR S %CPU TIME+ COMMAND </div><div>12420 www 18.2 15 0 3027m 2.8g 1972 S 0.3 29:58.36 loncnew </div><div><br></div><div>And a little more detail:</div><div><div><div>$ ps vp 12420</div><div> PID TTY STAT TIME MAJFL TRS DRS RSS %MEM COMMAND</div><div>12420 ? S 29:58 0 0 3100400 2967932 18.2 lonc: <a href="http://loncapa10.fsu.edu">loncapa10.fsu.edu</a> Connection count: 1 Retries remaining</div></div><div><br></div><div>Again, this probably has nothing to do with your problem, so feel free to ignore it. I don't want to hijack the thread.</div><div><br></div><div>-Jim</div><div><br></div><div>On Nov 15, 2011, at 6:20 PM, Lucas, Mark wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hmm ... It's set to 0, and I don't see anything strange in the Debug<div>subroutine.</div><div><br></div><div>I thought I remembered the loncnew has a way to toggle the debug on</div><div>and off. Is there a comparable behavior upon an interrupt to lond?</div><div>I didn't think there was.</div><div><br></div><div>Mark</div><div><br><div><div>On Nov 15, 2011, at 6:11 PM, Stuart Raeburn wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Hi,<br><br><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Command received: ekey, encoded = 0<br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Matched dispatch hash: mustencode:<br></blockquote><br>That is odd.<br>You should only see that level of detail in lond.log if you have:<br><br>my $DEBUG=1;<br><br>set in /home/httpd/perl/lond<br><br>I don't see it showing up in /home/httpd/perl/lond.log otherwise.<br><br>If you are sure that:<br><br>my $DEBUG-0;<br><br>is set (and you have restarted loncontrol), then it seems you should <br>look at the Debug subroutine in lond, which should be:<br><br>sub Debug {<br> my $message = shift;<br> if($DEBUG) {<br><span class="Apple-tab-span" style="white-space:pre"> </span>&logthis($message);<br> }<br>}<br><br>To stop the excessive logging, regardless of the value of $DEBUG you <br>could change it to:<br><br>sub Debug {<br> my $message = shift;<br> return;<br>}<br><br>and restart loncontrol<br><br>Stuart Raeburn<br>MSU LON-CAPA group<br><br><br>Quoting "Lucas, Mark" <<a href="mailto:lucasm@ohio.edu">lucasm@ohio.edu</a>>:<br><br><blockquote type="cite">I'm having some issues here I may need help with.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">We're working towards finals starting tomorrow, and last night I had <br></blockquote><blockquote type="cite"> one of my machines<br></blockquote><blockquote type="cite">go catatonic regarding LON-CAPA and httpd. I was still able to get <br></blockquote><blockquote type="cite">in via ssh.<br></blockquote><blockquote type="cite">This seems to be correlated with memory problems.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I restarted LON-CAPA (loncontrol and httpd) on that machine and did <br></blockquote><blockquote type="cite">the same on<br></blockquote><blockquote type="cite">my balancer, and it seemed to be fine.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Just about an hour ago I started having problems again. There seems <br></blockquote><blockquote type="cite">to be a significant<br></blockquote><blockquote type="cite">increase in memory usage - the slope changed pretty dramatically as <br></blockquote><blockquote type="cite">usage picked up.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">While the machines are being used pretty steadily, I'm wondering if <br></blockquote><blockquote type="cite">there's anything regarding<br></blockquote><blockquote type="cite">downloading of large pdf files or the like that may somehow be <br></blockquote><blockquote type="cite">causing grief. They're not<br></blockquote><blockquote type="cite">working on homework as much as they are pouring over lecture notes.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I also found the lond.log file on my library to be huge (3Gb+?) last <br></blockquote><blockquote type="cite"> night. While there typically<br></blockquote><blockquote type="cite">isn't much in lond.log, and I have debug set to zero, I'm getting a <br></blockquote><blockquote type="cite">bunch of messages like those shown<br></blockquote><blockquote type="cite">below. Is this a sign of poor communications between the machines <br></blockquote><blockquote type="cite">developing under the load?<br></blockquote><blockquote type="cite">Is debug somehow getting turned on?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I'm at a bit of a loss for the behavior, and I definitely have some <br></blockquote><blockquote type="cite">students pissed at me right<br></blockquote><blockquote type="cite">now.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Mark<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">============================================================<br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Command received: sethost, encoded = 0<br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Matched dispatch hash: mustencode: <br></blockquote><blockquote type="cite"> 0 ClientType 1Tue Nov 15 05:26:57 2011 (21584): Dispatching to <br></blockquote><blockquote type="cite">handler sethost oucapa2<br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Request was sethost:oucapa2 Reply was ok<br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): get_request: Request = ekey<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Main: Got ekey<br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): process_request: ekey<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Command received: ekey, encoded = 0<br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Matched dispatch hash: mustencode: <br></blockquote><blockquote type="cite"> 0 ClientType 3Tue Nov 15 05:26:57 2011 (21584): Dispatching to <br></blockquote><blockquote type="cite">handler ekey<br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Request was ekey: Reply was <br></blockquote><blockquote type="cite">7643ACBACEB8A7BAE8DBCE811563Tue Nov 15 05:26:57 2011 (21584): <br></blockquote><blockquote type="cite">get_request: Request = <br></blockquote><blockquote type="cite">sethost:oucapa2:put:ohiou:OUp200lib:nohist_resevaldata:author%2fmeap%2fcalculus%2fprecalcreview%2ftrig02%2dRadiansToDegrees%2eprobl<br></blockquote><blockquote type="cite">em___ohiou%2fOUp200lib%2fmath%2ftriangle_comp1%2eproblem___comefrom=1<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Main: Got <br></blockquote><blockquote type="cite">sethost:oucapa2:put:ohiou:OUp200lib:nohist_resevaldata:author%2fmeap%2fcalculus%2fprecalcreview%2ftrig02%2dRadiansToDegrees%2eproblem___ohiou%2f<br></blockquote><blockquote type="cite">OUp200lib%2fmath%2ftriangle_comp1%2eproblem___comefrom=1<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): process_request: <br></blockquote><blockquote type="cite">put:ohiou:OUp200lib:nohist_resevaldata:author%2fmeap%2fcalculus%2fprecalcreview%2ftrig02%2dRadiansToDegrees%2eproblem___ohiou%2fOUp200lib<br></blockquote><blockquote type="cite">%2fmath%2ftriangle_comp1%2eproblem___comefrom=1<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Command received: put, encoded = 0<br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Matched dispatch hash: mustencode: <br></blockquote><blockquote type="cite"> 0 ClientType 1<br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Dispatching to handler put <br></blockquote><blockquote type="cite">ohiou:OUp200lib:nohist_resevaldata:author%2fmeap%2fcalculus%2fprecalcreview%2ftrig02%2dRadiansToDegrees%2eproblem___ohiou%2fOUp<br></blockquote><blockquote type="cite">200lib%2fmath%2ftriangle_comp1%2eproblem___comefrom=1<br></blockquote><blockquote type="cite">Tue Nov 15 05:26:57 2011 (21584): Request was <br></blockquote><blockquote type="cite">put:ohiou:OUp200lib:nohist_resevaldata:author%2fmeap%2fcalculus%2fprecalcreview%2ftrig02%2dRadiansToDegrees%2eproblem___ohiou%2fOUp200lib%2fma<br></blockquote><blockquote type="cite">th%2ftriangle_comp1%2eproblem___comefrom=1 Reply was ok<br></blockquote><blockquote type="cite">Tue Nov 15 05:27:09 2011 (21508): get_request: Request = exit<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Tue Nov 15 05:27:09 2011 (21508): Main: Got exit<br></blockquote><blockquote type="cite">========================================================================<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">--<br></blockquote><blockquote type="cite">Mark Lucas email: lucasm@ohiou.edu<<a href="mailto:lucasm@ohiou.edu">mailto:lucasm@ohiou.edu</a>><br></blockquote><blockquote type="cite">252D Clippinger Lab phone: (740)597-2984<br></blockquote><blockquote type="cite">Department of Physics and Astronomy fax: (740)593-0433<br></blockquote><blockquote type="cite">Ohio University<br></blockquote><blockquote type="cite">Athens, OH 45701<br></blockquote><blockquote type="cite"><br></blockquote><br>_______________________________________________<br>LON-CAPA-admin mailing list<br><a href="mailto:LON-CAPA-admin@mail.lon-capa.org">LON-CAPA-admin@mail.lon-capa.org</a><br><a href="http://mail.lon-capa.org/mailman/listinfo/lon-capa-admin">http://mail.lon-capa.org/mailman/listinfo/lon-capa-admin</a><br></div></blockquote></div><br><div>
<div>-- <br>Mark Lucas<span class="Apple-converted-space"> </span><span class="Apple-tab-span" style="white-space: pre; "> </span>email: <a href="mailto:lucasm@ohiou.edu">lucasm@ohiou.edu</a><br>252D Clippinger Lab<span class="Apple-tab-span" style="white-space: pre; "> </span>phone: (740)597-2984<br>Department of Physics and Astronomy<span class="Apple-tab-span" style="white-space: pre; "> </span>fax: (740)593-0433<br>Ohio University<br>Athens, OH 45701</div>
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