ds[proc].last_ds = "97" I already read that the MIN and MAX values are important. Month and day of the week names can be used in their naturally abbreviated form (e.g., Dec for December, Sun for Sunday, etc.). The info function prints the header information from an RRD in a parsing friendly format.. $ rrdtool update temperature-2.rrd 1377097800:140 $ rrdtool fetch temperature-2.rrd AVERAGE --start 1377096300 --end 1377097800 temp.kelvin *UNKNOWN* data is often represented by the string ``NaN'' depending on your OSs printf function. resultatet visar detta: 1491270300: -nan 1491270600: -nan 1491270900: -nan 1491271200: -nan 1491271500: -nan 1491271800: -nan 1491272100: -nan 1491272400: -nan 1491272700: -nan 1491273000: -nan 1491273300: -nan . 23:59 31.12.1999 -- 1 minute to the year 2000. OK u:0.01 s:0.00 r:0.32 Address of the rrdcached daemon. The at-style specification consists of two parts: the TIME REFERENCE specification and the TIME OFFSET specification. *UNKNOWN* data is often represented by the string "NaN" depending on your OS's printf function. bug#0002060: NAN values in hdd utilization graphs (Poller Output Table not Empty) bug: Fix SQL injection issues in login page bug: RRDtool fetch in Cacti fails to function properly on rrdtool files with NaN values in the output bug: Accept "Connection refused" on TCP ping tests bug: Add missing row selection javascript to graph preview See "RESOLUTION INTERVAL". *UNKNOWN* data is often represented by the string "NaN" depending on your OS's printf function. that your browser does not support CSS2. If you find NaN's there, perform rrdtool info and check the ds[…].min and ds[…].max entries, e.g. though if a specific RRA is desired this will not ensure the start and end fall within its bounds. res are missing, then the mirror may not have picked up the contents of the inc directory. ds[proc].value = 1.9400000000e+02 I use rrdtool 1.4.8. rrdtool info localhost_proc_37.rrd | grep ds The fetch function is normally used internally by the graph function to get data from RRDs. NOTE: The content of this website is accessible with any browser. *UNKNOWN* data is often represented by the string ``NaN'' depending on your OS's printf function. I created the file with: rrdtool create file.rrd -s 21600 DS:offset:GAUGE:21600:U:U RRA:MAX:0:1:360 I add the data with: rrdtool update file.rrd N: (E.g. epoch is useful to disambiguate between a timestamp value and some forms of abbreviated date/time specifications, because it allows one to use time offset specifications using units, eg. one day worth of data will be fetched. Create db: ... rrdtool fetch test.rrd AVERAGE -s 1509908400 screen (all fetch types show -nans) dump is similar: screen. a flush command is sent to the server before reading the RRD files. The documentation provided with RRDtool … The fetch function is normally used internally by the graph function to get data from RRDs. 2- L'as tu bien entourée de backquotes ` … The day can be specified as month-name day-of-the-month and optional a 2- or 4-digit year number (e.g. This may lead to some surprising (or even invalid!) For all the others there is a little example below, that shows how to do a little addition in RPN. Consider now that you want to fetch the 15 minute average data for the last hour. Start (end) can be used to specify a time relative to the start (end) time for those tools that use these categories (rrdfetch, rrdgraph) and epoch indicates the *IX epoch (*IX timestamp 0 = 1970-01-01 00:00:00 UTC). RRDtool is a wonderful tool for collecting and graphing data.. RRDtool is the OpenSource industry standard, high performance data logging and graphing system for time series data. I need convert numbers In, Out in Mbps/s I found this command with awk, but a want in shell Ex: 1403378700: 8.5000000000e+01. ds[proc].max = 1.0000000000e+03 The data is produced by Cacti. But with "rrdtool fetch AVERAGE" I see only nan values. 06/21/2014 05:35:02 PM - SYSTEM STATS: Time:0.7291 Method:cmd.php Processes:1 Threads:N/A Hosts:2 HostsPerProcess:2 DataSources:6 RRDsProcessed:5. The .rrd files look good when I use "rrdtool info". There are, however, cases when whitespace is required (e.g., 'midnight Thu'). 12/31/99 11:59pm -- 1 minute to the year 2000 for imperialists. You might try rrdtool fetch subdata.rrd AVERAGE -r 15m -s -1h However, this will almost always result in a time series that is NOT in the 15 minute RRA. start+6hours or s+6h -- 6 hours after start time (may be used as end time specification). quand j utilise la commande rrdtool fetch pour visualiser le contenue de ma base ca me donne des NaN: Not a Number. and look at the last 10-20 lines. 19970703 12:45 -- 12:45 July 3th, 1997 (my favorite, and it has even got an ISO number (8601)). results, e.g. To cope with this, when you use days, weeks, months, or years as your time offset units your time reference date is adjusted accordingly without too much further effort to ensure anything about it (in the hope that mktime(3) will take care of this later). $ rrdtool fetch /tmp/x*.rrd AVERAGE -s 1288566000 -e 1291158000 -r 300 | head cpu_idle 1288566600: nan 1288567200: nan 1288567800: nan 1288568400: nan 1288569000: nan 1288569600: nan 1288570200: nan 1288570800: nan I was hoping someone could help me understand how values are computed in RRD. Already on GitHub? 1- Es-tu sûr de ta commande snmp ? The following environment variables may be used to change the behavior of rrdtool fetch: If this environment variable is set it will have the same effect as specifying the --daemon option on the command line. Viewed 1k times 0. This allows rrdtool to return fresh data even if the daemon is configured to cache values for a long time. For standard 300 seconds polling intervals (step=300), it is wise to set minimal_heartbeat to 600 seconds. 402772100: 8.5000000000e+01 if you specify the time itself (1293581677) then you'll get the *next* data point, not the one you specified. It uses RPN math for this. But it is strange. log.txt (just make sure): screen. What else can be the reason for only getting nan values? Compiling rrdtool on 64bit RHEL 6, rrdtool fetch returns '-nan' for UNKNOWN. ds[proc].unknown_sec = 0, rrdtool fetch localhost_proc_37.rrd AVERAGE, 1402757400: -nan The data fetched is printed to stdout. rrdtool info filename [--daemon|-d address [--noflush|-F]]. Consider upgrading to a standard conformant You can rate examples to help us … The data fetched is printed to stdout. By default, Finally, you can use the words now, start, end or epoch as your time reference. RPN basics: Step 0 15+23 = 38 1: NAN 2: NAN 3: NAN The data fetched is printed to stdout. rrdtool fetch rn23.rrd MAX --start 1491210243 --end now. NOTE4: The single-letter abbreviation for both months and minutes is m. To disambiguate them, the parser tries to read your mind :) by applying the following two heuristics: Final NOTES: Time specification is case-insensitive. But with "rrdtool fetch AVERAGE" I see only nan values. rrdtool fetch test.rrd AVERAGE --start 920804700--end 920805300 920805000 : 4.0000000000e-02 920805300 : 2.0000000000e-02 920805600 : nan # Not A Number It can be also NAN, U or UNKN 4.5 - Graph These units can be used in singular or plural form, and abbreviated naturally or to a single letter (e.g. RRDtool can be easily integrated in shell scripts, perl, python, ruby, lua or tcl applications. > rrdtool fetch x.rrd -r 300 \-s 1200000600 -e 1200000900 AVERAGE 1200000900: 4.0000000000e+01 1200001200: 5.0000000000e+01 thenpull900seconds > rrdtool fetch x.rrd -r300 \-s 1200000000 -e 1200000900 AVERAGE 1200000600: 2.5000000000e+01 1200001200: 4.5000000000e+01 Data in the resolution requested the text was updated successfully, but it return! ' ) AT-STYLE specification consists of a sign ( + or - ) and an.! Come first, when compiled on 64bit RHEL5, rrdtool fetch test.rrd AVERAGE -s 1509908400 screen all! 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