<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">From the following page we found some solutions to certain problems we were seeing. <span class="Apple-tab-span" style="white-space:pre"><a href="http://net.doit.wisc.edu/~dwcarder/rrdcache/">http://net.doit.wisc.edu/~dwcarder/rrdcache/</a></span><div><span class="Apple-style-span" style="white-space: pre;"><br></span></div><div><span class="Apple-tab-span" style="white-space:pre"></span><span class="Apple-style-span" style="white-space: pre;">This one host is using an older version of RRDtool with little chance for upgrade due to obsolete host OS, so this seemed appealing. However playing with the module has found it quite immature ... print() statements inside the library, plus a number of fairly obvious bugs due to fixing a specific problem for one application and not for all.</span></div><div><span class="Apple-style-span" style="white-space: pre;"><br></span></div><div><span class="Apple-style-span" style="white-space: pre;">Issues I've found so far:</span></div><div><span class="Apple-style-span" style="white-space: pre;"><span class="Apple-tab-span" style="white-space:pre"><br></span></span></div><div><span class="Apple-style-span" style="white-space: pre;"><span class="Apple-tab-span" style="white-space:pre"> </span>1. If the application is short lived, tmp files are never renamed and thus never used. It only works as implemented for long-running applications.</span></div><div><span class="Apple-style-span" style="white-space: pre;"><span class="Apple-tab-span" style="white-space:pre"><br></span></span></div><div><span class="Apple-style-span" style="white-space: pre;"><span class="Apple-tab-span" style="white-space:pre"> </span>2. If the application saves data with "N" for the timestamp, all updates are applied with the same timestamp.</span></div><div><span class="Apple-style-span" style="white-space: pre;"><br></span></div><div><span class="Apple-style-span" style="white-space: pre;"><span class="Apple-tab-span" style="white-space:pre"> </span>3. Not all functions from RRDs.pm implemented</span></div><div><span class="Apple-style-span" style="white-space: pre;"><br></span></div><div><span class="Apple-style-span" style="white-space: pre;"><span class="Apple-tab-span" style="white-space:pre"> </span>4. print() calls in the library routines</span></div><div><span class="Apple-style-span" style="white-space: pre;"><br></span></div><div><span class="Apple-style-span" style="white-space: pre;"><span class="Apple-tab-span" style="white-space:pre"> </span>5. error() function commented out</span></div><div><span class="Apple-style-span" style="white-space: pre;"><br></span></div><div><span class="Apple-style-span" style="white-space: pre;">I'm sure there are more. Is anyone else using this in the wild? Want to collaborate on fixes?</span></div><div><span class="Apple-style-span" style="white-space: pre;"><br></span><div><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div><div><span class="Apple-style-span" style="font-size: 12px; "><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">-- </font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">Jo Rhett</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">Net Consonance : consonant endings by net philanthropy, open source and other randomness</font></div></span></div></div></span>
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