From: Reinhard S. <Rei...@te...> - 2009-03-02 19:58:40
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Cal Heldenbrand wrote: > Hello, > > I tried searching for this issue, but couldn't find a place to search the > mailing list on sourceforge. Sorry if this is a duplicate. > > I just upgraded to from 0.8.7a to 0.8.7d and created a script to pull disk > I/O stats, which outputs a format like "read:1234 write:5678" I've checked > through the Cacti logs, the script is called successfully and has the > correct output. (I've checked all of the other normal things like > permissions, etc) > > Here's what the log looks like: > > 02/27/2009 10:45:02 AM - SPINE: Poller[0] Host[111] DS[1703] SCRIPT: > /usr/bin/perl /var/www/html/cacti-0.8.7d/scripts/diskio26.pl web20 sda, > output: read:4177 write:209605 > > Pulling data from the RRD file shows that the value wasn't added with > RRDtool correctly. (I also didnt' set a min/max value, and also tried > setting a max value to something very large with the same results) > > <!-- 2009-02-26 18:00:00 CST / 1235692800 --> <row><v> 4.3060400000e+03 > </v><v> NaN </v></row> > > In this case, the disk reads were graphing correctly, but the writes were > NaN values. After screwing around a bunch (removed & added all of the Data > Input and templates) I tried adding a place holder field at the end of the > script, zztest: 2 > > 02/27/2009 11:05:03 AM - SPINE: Poller[0] Host[111] DS[1716] SCRIPT: > /usr/bin/perl /var/www/html/cacti-0.8.7d/scripts/diskio26.pl web20 sda, > output: read:983 write:217940 zztest:1 > > But after that, the NaN field swapped. Writes were showing valid values, > but reads were NaN. > > ------------------------------------------------------------------------------------------ > rrdtool fetch 1716.rrd AVERAGE > > 1235754300: nan nan > 1235754600: nan 2.1910521406e+05 > 1235754900: nan 2.1801617000e+05 > 1235755200: nan 2.1800202000e+05 > 1235755500: nan 4.5918134667e+05 > 1235755800: nan 2.1675886000e+05 > 1235756100: nan 2.1402336667e+05 > 1235756400: nan 2.1065158000e+05 > 1235756700: nan 2.0651958000e+05 > 1235757000: nan 2.2000055000e+05 > ------------------------------------------------------------------------------------------ > Also double checking the mysql stuff, it appears fine: > > AM - SPINE: Poller[0] DEVDBG: SQL:'INSERT INTO poller_output (local_data_id, > rrd_name, time, output) VALUES (1716,'','2009-02-27 11:51:20','read:630 > write:242136 zztest:1') > > ( removed the extra junk from that line) > > Taking this one step further, I added an aatest at the beginning of the > fields, and now the graph works fine > > ------------------------------------------------------------------------------------------ > 02/27/2009 12:15:36 PM - SPINE: Poller[0] Host[111] DS[1716] SCRIPT: > /usr/bin/perl /var/www/html/cacti-0.8.7d/scripts/diskio26.pl web20 sda, > output: aatest:1 read:361 write:274070 zztest:2 > > 1235763000: 9.3813333333e+02 2.0923755333e+05 1.0000000000e+00 > 2.0000000000e+00 > 1235763300: 5.7694133333e+03 2.0998299333e+05 1.0000000000e+00 > 2.0000000000e+00 > 1235763600: 1.9637600000e+03 2.0770929333e+05 1.0000000000e+00 > 2.0000000000e+00 > 1235763900: nan nan nan nan > ------------------------------------------------------------------------------------------ > > Does this have anything to do with bug #001097? (patch to allow NaN > numbers) Did you make sure, that the "print" of all three values is done in a single "print" statement? Reinhard |