I think I get what you are asking, and I believe that RrdTool/JRobin already handles the case that you are worried about.
It's a little difficult explaining it, so I am going to point you to the RrdTool webpage on rrdcreate: http://oss.oetiker.ch/rrdtool/doc/rrdcreate.en.html See the points about the heartbeat & step values for your datasource, and also about the XFF value and how it affects stored values. Ron -----Original Message----- From: xuemei [mailto:xuemei.ji...@gmail.com] Sent: Monday, July 16, 2012 1:57 PM To: opennms-devel@lists.sourceforge.net Subject: Re: [opennms-devel] RrdUtils.updateFile skip the timestamp which is expired Thanks for all the answers, I really appreciated cause people told me that it is not so useful to ask question here, I am gonna tell them, it helps! lol Ok, go back to the topic, I decide to do sth very ugly, because by now I cant find a nice way to realize it. Based on the source code in the project Jrobin inspector,how it update the value: Robin robin = rrd.getArchive(arcIndex).getRobin(dsIndex); robin.setValue(rowIndex, value); I only could do it in a kind of ugly way, scan all the archives from the rrdFile, then scan the records in the robin, then compare the timestamp in the record with the data I wana update(the data has timestamp and value). In the way, I could locate the record for update the new value using robin.setValue(rowIndex, value); it is a little painful, but as we do need this function, by now I cant find a better way. How do you think? As I said, the openNMS collection, when the data is delay, it could cause the gap. I wish to have your answers soon because I may leave this project as I progress so slow, waster too much time, lol. best regards, Xuemei -- View this message in context: http://opennms.530661.n2.nabble.com/RrdUtils-updateFile-skip-the-timestamp-which-is-expired-tp7580325p7580387.html Sent from the OpenNMS - devel mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Please read the OpenNMS Mailing List FAQ: http://www.opennms.org/index.php/Mailing_List_FAQ opennms-devel mailing list To *unsubscribe* or change your subscription options, see the bottom of this page: https://lists.sourceforge.net/lists/listinfo/opennms-devel This e-mail message is being sent solely for use by the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by phone or reply by e-mail, delete the original message and destroy all copies. Thank you. ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Please read the OpenNMS Mailing List FAQ: http://www.opennms.org/index.php/Mailing_List_FAQ opennms-devel mailing list To *unsubscribe* or change your subscription options, see the bottom of this page: https://lists.sourceforge.net/lists/listinfo/opennms-devel
