Try increasing your heartbeat to 1200 or more from 600 seconds and see. I guess its mainly bcos of the delay in inserting the data in to RRD for some scripts.
Regards, Pavan -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of baranidharan Sent: Wednesday, December 17, 2008 12:23 PM To: [email protected] Subject: [rrd-users] RRD data base have NaN value Hi all, I created RRD database with the step interval 300 seconds, heartbeat is 600 seconds. poller updating the RRD database at regular 5 minutes interval of the time , sometimes poller will update the RRD database 9 - 11 minutes interval of the time . while 9-11 minutes interval updation the RRD data base have data at some interval of time , some interval of time have NaN. Plesase help me why NaN coming instaded of data. The sample RRD data base given below: <!-- 2008-12-09 15:15:00 IST / 1228815900 --> <row><v> NaN </v></row> <!-- 2008-12-09 15:20:00 IST / 1228816200 --> <row><v> NaN </v></row> <!-- 2008-12-09 15:25:00 IST / 1228816500 --> <row><v> NaN </v></row> <!-- 2008-12-09 15:30:00 IST / 1228816800 --> <row><v> NaN </v></row> <!-- 2008-12-09 15:35:00 IST / 1228817100 --> <row><v> NaN </v></row> <!-- 2008-12-09 15:40:00 IST / 1228817400 --> <row><v> NaN </v></row> <!-- 2008-12-09 15:45:00 IST / 1228817700 --> <row><v> NaN </v></row> <!-- 2008-12-09 15:50:00 IST / 1228818000 --> <row><v> NaN </v></row> <!-- 2008-12-09 15:55:00 IST / 1228818300 --> <row><v> NaN </v></row> <!-- 2008-12-09 16:00:00 IST / 1228818600 --> <row><v> NaN </v></row> <!-- 2008-12-09 16:05:00 IST / 1228818900 --> <row><v> 4.0996606324e+06 </v></row> <!-- 2008-12-09 16:10:00 IST / 1228819200 --> <row><v> 4.0996606324e+06 </v></row> <!-- 2008-12-09 16:15:00 IST / 1228819500 --> <row><v> 4.0996606324e+06 </v></row> <!-- 2008-12-09 16:20:00 IST / 1228819800 --> <row><v> 4.0996606324e+06 </v></row> <!-- 2008-12-09 16:25:00 IST / 1228820100 --> <row><v> 3.5867704397e+06 </v></row> <!-- 2008-12-09 16:30:00 IST / 1228820400 --> <row><v> 3.5867704397e+06 </v></row> <!-- 2008-12-09 16:35:00 IST / 1228820700 --> <row><v> 3.5867704397e+06 </v></row> <!-- 2008-12-09 16:40:00 IST / 1228821000 --> <row><v> 3.5867704397e+06 </v></row> <!-- 2008-12-09 16:45:00 IST / 1228821300 --> <row><v> 3.5867704685e+06 </v></row> <!-- 2008-12-09 16:50:00 IST / 1228821600 --> <row><v> 3.5867704685e+06 </v></row> <!-- 2008-12-09 16:55:00 IST / 1228822200 --> <row><v> 3.5867704685e+06 </v></row> <!-- 2008-12-09 17:00:00 IST / 1228822500 --> <row><v> NaN </v></row> <!-- 2008-12-09 17:05:00 IST / 1228822800 --> <row><v> NaN </v></row> <!-- 2008-12-09 17:10:00 IST / 1228823100 --> <row><v> NaN </v></row> <!-- 2008-12-09 17:15:00 IST / 1228823400 --> <row><v> NaN </v></row> <!-- 2008-12-09 17:20:00 IST / 1228823700 --> <row><v> NaN </v></row> <!-- 2008-12-09 17:25:00 IST / 1228824000 --> <row><v> NaN </v></row> <!-- 2008-12-09 17:30:00 IST / 1228824300 --> <row><v> NaN </v></row> <!-- 2008-12-09 17:35:00 IST / 1228824600 --> <row><v> NaN </v></row> <!-- 2008-12-09 17:40:00 IST / 1228824900 --> <row><v> NaN </v></row> <!-- 2008-12-09 17:45:00 IST / 1228825200 --> <row><v> NaN </v></row> <!-- 2008-12-09 17:50:00 IST / 1228825500 --> <row><v> NaN </v></row> <!-- 2008-12-09 17:55:00 IST / 1228825800 --> <row><v> NaN </v></row> <!-- 2008-12-09 18:00:00 IST / 1228826100 --> <row><v> NaN </v></row> <!-- 2008-12-09 18:05:00 IST / 1228826400 --> <row><v> NaN </v></row> <!-- 2008-12-09 18:10:00 IST / 1228826700 --> <row><v> NaN </v></row> <!-- 2008-12-09 18:15:00 IST / 1228827000 --> <row><v> NaN </v></row> <!-- 2008-12-09 18:20:00 IST / 1228827300 --> <row><v> NaN </v></row> <!-- 2008-12-09 18:25:00 IST / 1228827600 --> <row><v> 3.5867704636e+06 </v></row> Thanks and Regards Barani ********** DISCLAIMER ********** Information contained and transmitted by this E-MAIL is proprietary to Sify Limited and is intended for use only by the individual or entity to which it is addressed, and may contain information that is privileged, confidential or exempt from disclosure under applicable law. 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