Just FYI -- not sure how the RPMs are compiled, but recompiling 1.4.7 by hand on the target system with the following options appears to have solved the problem.
./configure --prefix=/home/jrhett/rrdtool --disable-mmap --disable-rrdcgi --disable-rrd_graph I used this rrdtool only to do the resize, and it worked properly. So there's still bugs around mmap and resize on x86_64. On Jul 13, 2012, at 9:22 AM, Jo Rhett wrote: > It doesn't appear to matter which RRA I update -- I thought of that too. > Whichever RRA I update the timestamps get corrupted. > > Oddly, the base RRA goes centuries farther forward while the remaining RRAs > all go back to 1969 while keeping the correct day. Machine timezone is UTC if > that matters. I tried changing the TZ variable a few times with no apparent > effect. > > On Jul 12, 2012, at 7:38 PM, Joe Loiacono wrote: >> Hmm. I used resize recently without any *apparent* problems. I will do a >> review. I'm pretty sure I would have seen something along the lines of what >> you've shown though. >> >> I have a set of databases that mimics MRTG. I expanded the 'Last 3 Years' >> rra (i.e., a derived one, not the base that you updated.) >> >> v1.4.7. >> >> Joe Loiacono >> >> >> >> >> From: Jo Rhett <jrh...@netconsonance.com> >> To: rrd-users@lists.oetiker.ch >> Date: 07/12/2012 06:54 PM >> Subject: [rrd-users] rrdtool resize corrupts timestamps in both 1.3.9 >> and 1.4.7 >> Sent by: rrd-users-bounces+jloiacon=csc....@lists.oetiker.ch >> >> >> >> I found that doing a resize on an rrd file caused a total loss of data with >> rrdtool 1.3.9 which is bundled with zenoss 3.2.1 on CentOS 5. >> Investigating with the tools found that the data was there, but the >> timestamps were corrupt. >> >> So I grabbed rrdtool 1.4.7 and tried to use it and found that it has the >> same problem on CentOS 5. >> >> $ rrdtool dump testfile.rrd | head -40 >> <?xml version="1.0" encoding="utf-8"?> >> <!DOCTYPE rrd SYSTEM "http://oss.oetiker.ch/rrdtool/rrdtool.dtd";> >> <!-- Round Robin Database Dump --><rrd> <version> 0003 </version> >> <step> 15 </step> <!-- Seconds --> >> <lastupdate> 1342133281 </lastupdate> <!-- 2012-07-12 15:48:01 PDT --> >> >> <ds> >> <name> ds0 </name> >> <type> COUNTER </type> >> <minimal_heartbeat> 45 </minimal_heartbeat> >> <min> NaN </min> >> <max> 1.0000000000e+04 </max> >> >> <!-- PDP Status --> >> <last_ds> 5585260819 </last_ds> >> <value> 5.2688224977e+02 </value> >> <unknown_sec> 0 </unknown_sec> >> </ds> >> >> <!-- Round Robin Archives --> <rra> >> <cf> AVERAGE </cf> >> <pdp_per_row> 1 </pdp_per_row> <!-- 15 seconds --> >> >> <params> >> <xff> 5.0000000000e-01 </xff> >> </params> >> <cdp_prep> >> <ds> >> <primary_value> 5.0500416920e+02 </primary_value> >> <secondary_value> 5.0571394032e+02 </secondary_value> >> <value> NaN </value> >> <unknown_datapoints> 0 </unknown_datapoints> >> </ds> >> </cdp_prep> >> <database> >> <!-- 2012-07-12 13:18:15 PDT / 1342124295 --> <row><v> 5.2835238201e+02 >> </v></row> >> <!-- 2012-07-12 13:18:30 PDT / 1342124310 --> <row><v> 5.2950058206e+02 >> </v></row> >> <!-- 2012-07-12 13:18:45 PDT / 1342124325 --> <row><v> 5.3706333105e+02 >> </v></row> >> <!-- 2012-07-12 13:19:00 PDT / 1342124340 --> <row><v> 5.2656011537e+02 >> </v></row> >> <!-- 2012-07-12 13:19:15 PDT / 1342124355 --> <row><v> 5.0348379147e+02 >> </v></row> >> >> $ rrdtool resize testfile.rrd 0 GROW 1416 >> >> $ rrdtool dump resize.rrd | head -40 >> <?xml version="1.0" encoding="utf-8"?> >> <!DOCTYPE rrd SYSTEM "http://oss.oetiker.ch/rrdtool/rrdtool.dtd";> >> <!-- Round Robin Database Dump --><rrd> <version> 0003 </version> >> <step> 15 </step> <!-- Seconds --> >> <lastupdate> 4048795654275216693 </lastupdate> <!-- -547790155-01-11136 >> 05:31:33 PST --> >> >> <ds> >> <name> ds0 </name> >> <type> COUNTER </type> >> <minimal_heartbeat> 45 </minimal_heartbeat> >> <min> NaN </min> >> <max> 1.0000000000e+04 </max> >> >> <!-- PDP Status --> >> <last_ds> </last_ds> >> <value> 0.0000000000e+00 </value> >> <unknown_sec> 0 </unknown_sec> >> </ds> >> >> <!-- Round Robin Archives --> <rra> >> <cf> AVERAGE </cf> >> <pdp_per_row> 1 </pdp_per_row> <!-- 15 seconds --> >> >> <params> >> <xff> 5.0000000000e-01 </xff> >> </params> >> <cdp_prep> >> <ds> >> <primary_value> 0.0000000000e+00 </primary_value> >> <secondary_value> 0.0000000000e+00 </secondary_value> >> <value> 0.0000000000e+00 </value> >> <unknown_datapoints> 0 </unknown_datapoints> >> </ds> >> </cdp_prep> >> <database> >> <!-- -547790155-01-11136 21:07:45 PST / 892845857 --> <row><v> NaN >> </v></row> >> <!-- -547790155-01-11136 21:08:00 PST / 892845872 --> <row><v> NaN >> </v></row> >> <!-- -547790155-01-11136 21:08:15 PST / 892845887 --> <row><v> NaN >> </v></row> >> <!-- -547790155-01-11136 21:08:30 PST / 892845902 --> <row><v> NaN >> </v></row> >> <!-- -547790155-01-11136 21:08:45 PST / 892845917 --> <row><v> NaN >> </v></row> >> >> Let's find the first value that was in the old file. >> >> $ rrdtool dump tmp.0.resize.rrd | grep 5.28352 >> <!-- -547790155-01-11098 03:01:15 PST / 892867067 --> <row><v> >> 5.2835238201e+02 </v></row> >> >> Hm. That's a way bit different timestamp than this record >> <!-- 2012-07-12 13:18:15 PDT / 1342124295 --> <row><v> 5.2835238201e+02 >> </v></row> >> >> -- >> Jo Rhett >> Net Consonance : net philanthropy to improve open source and internet >> projects. >> >> >> _______________________________________________ >> rrd-users mailing list >> rrd-users@lists.oetiker.ch >> https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users >> >> > > -- > Jo Rhett > Net Consonance : net philanthropy to improve open source and internet > projects. > > > > _______________________________________________ > rrd-users mailing list > rrd-users@lists.oetiker.ch > https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users -- Jo Rhett Net Consonance : net philanthropy to improve open source and internet projects.
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