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</o:shapelayout></xml><![endif]--></head><body lang=EN-NZ link=blue vlink=purple style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Where is your RRD file?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Your rrdcached command line says it should be under /root/tools/rrdcached (this is the –b parameter, the base directory for the RRD files)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>Your call to rrdtool is wrong – you don’t need to give the IP address in the RRD path unless you really have a directory called that! So…<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>rrdtool info 10.74.125.141/memory/memory-buffered.rrd --daemon 10.74.125.141<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'>This tells rrdtool to talk to rrdcached via TCP (the <b>–daemon 10.74.125.141</b> part)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'>It then requests a file ‘</span><span lang=EN-US>10.74.125.141/memory/memory-buffered.rrd’</span><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'>Since this doesn’t start with a /, the basedir is used, and rrdcached looks for </span><span style='font-size:11.0pt;color:#1F497D'>/root/tools/rrdcached/10</span><span lang=EN-US>.74.125.141/memory/memory-buffered.rrd</span><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'>This is probably not what you were trying to do. Make sure the <b>–b basedir </b>is set correctly for rrdcached, and pass the relative path to rrdtool. Only specify the rrdcached address in the <b>–daemon</b> parameter, or in the <b>RRDCACHED_ADDRESS</b> environment variable.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'>Having said all the, the stable release of rrdcached does not support all the functions. You need the trunk version to get such things as <b>create</b> and <b>info</b>, at least you did last time I checked. I think the 1.4 stable version only supports <b>graph</b>, <b>fetch</b>, <b>update</b>.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'>Steve<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><div><div class=MsoNormal align=center style='text-align:center'><span lang=EN-US style='font-size:11.0pt;color:#1F497D'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal align=left style='text-align:left'><b><span style='font-size:11.0pt;color:#1F497D'>Steve Shipway</span></b><b><span style='font-size:11.0pt;color:#1F497D'><o:p></o:p></span></b></p><p class=MsoNormal align=left style='text-align:left'><span style='font-size:10.0pt;color:#1F497D'>ITS Unix Services Design Lead<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left'><span style='font-size:10.0pt;color:#1F497D'>University of Auckland, New Zealand<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left'><span style='font-size:10.0pt;color:#1F497D'>Floor 1, 58 Symonds Street, Auckland<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left'><i><span style='font-size:10.0pt;color:#595959'>Phone: +64 (0)9 3737599 ext 86487<o:p></o:p></span></i></p><p class=MsoNormal align=left style='text-align:left'><i><span style='font-size:10.0pt;color:#595959'>DDI: +64 (0)9 924 6487<o:p></o:p></span></i></p><p class=MsoNormal align=left style='text-align:left'><i><span style='font-size:10.0pt;color:#595959'>Mobile: +64 (0)21 753 189<o:p></o:p></span></i></p><p class=MsoNormal align=left style='text-align:left'><i><span style='font-size:10.0pt;color:#595959'>Email: <a href="mailto:s.shipway@auckland.ac.nz"><span style='color:#595959'>s.shipway@auckland.ac.nz</span></a><o:p></o:p></span></i></p><p class=MsoNormal align=left style='text-align:left'><span lang=EN-GB style='font-size:18.0pt;font-family:Webdings;color:green'>P</span><span lang=EN-GB style='font-size:11.0pt;color:blue'> </span><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial Narrow","sans-serif";color:green'>Please consider the environment before printing this e-mail</span><span lang=EN-GB style='font-size:11.0pt;color:blue'> : </span><span lang=ZH-TW style='font-size:10.0pt;font-family:"MS Gothic";color:green'>打印本</span><span lang=ZH-TW style='font-size:10.0pt;font-family:MingLiU;color:green'>邮件，将减少一棵树存活的机会</span><span lang=EN-GB style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:navy'><o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal align=left style='text-align:left'><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> rrd-users-bounces+s.shipway=auckland.ac.nz@lists.oetiker.ch [mailto:rrd-users-bounces+s.shipway=auckland.ac.nz@lists.oetiker.ch] <b>On Behalf Of </b>Benjamin Wang (gendwang)<br><b>Sent:</b> Wednesday, 6 March 2013 4:14 a.m.<br><b>To:</b> rrd-users@lists.oetiker.ch<br><b>Subject:</b> [rrd-users] Does rrdcached within rrdtool 1.4.7 support fetch, info etc?<o:p></o:p></span></p></div></div><p class=MsoNormal align=left style='text-align:left'><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>Hi,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> I try to setup collectd and rrdcached in one machine, and try to access rrdcached in another machine. The start script is as following:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>rrdcached -w 600 -z 10 -p /root/tools/rrdcached/rrdcached.pid -b /root/tools/rrdcached -j /root/tools/rrdcached/cached -l 10.74.125.141 -l unix:/tmp/rrdcached.sock<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>When I access by rrdtool in the local machine with absolute path, everything is OK. But I try to access in the remote machine by the following commad:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>rrdtool info 10.74.125.141/memory/memory-buffered.rrd --daemon 10.74.125.141<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>rrdtool fetch 10.74.125.141/memory/memory-buffered.rrd AVERAGE --start 1362495020 --end 1362495620 --daemon 10.74.125.141<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The return result is always “ERROR: opening '10.74.125.141/memory/memory-buffered.rrd': No such file or directory”.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I have checked the path. There is no symbolic link.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Does rrdtool 1.4.7 support remotely fetch, info?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>B.R.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Benjamin Wang<o:p></o:p></span></p></div></div></body></html>