rrdfetch will try to match your request, the end of the time series in seconds since epoch. 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, polloer.log ds[proc].value = 1.9400000000e+02 Ask Question Asked 3 years, 1 month ago. It consists of a sign (+ or -) and an amount. 1402758300: -nan I've got a cronjob set to run every 10 minutes that should run the update command, but when I dump the contents of the rrd file afterwards, all values show up as NaN. DESCRIPTION. 5m instead of 300 seconds). What else can be the reason for only getting nan values? We can now retrieve the data from our database using "rrdtool fetch": rrdtool fetch test.rrd AVERAGE --start 920804400 --end 920809200 It should return the following output: speed 920804700: nan 920805000: 4.0000000000e-02 920805300: 2.0000000000e-02 920805600: 0.0000000000e+00 920805900: 0.0000000000e+00 920806200: 3.3333333333e-02 … The data fetched is printed to stdout. I was hoping someone could help me understand how values are computed in RRD. The data fetched is printed to stdout. Therefore, the highest resolution RRA, i.e. 12/31/99 11:59pm -- 1 minute to the year 2000 for imperialists. The fetch function is normally used internally by the graph function to get data from RRD s. fetch will analyze the RRD and try to retrieve the data in the resolution requested. though if a specific RRA is desired this will not ensure the start and end fall within its bounds. ds[proc].min = 0.0000000000e+00 It uses RPN math for this. ds[proc].min = 0.0000000000e+00 The words now, start, end can be abbreviated as n, s, e. The time offset specification is used to add/subtract certain time intervals to/from the time reference moment. NOTE3: If you specify time offset in days, weeks, months, or years, you will end with the time offset that may vary depending on your time reference, because all those time units have no single well defined time interval value (1 year contains either 365 or 366 days, 1 month is 28 to 31 days long, and even 1 day may be not equal to 24 hours twice a year, when DST-related clock adjustments take place). the consolidation function that is applied to the data you want to fetch (AVERAGE,MIN,MAX,LAST). Viewed 1k times 0. The documentation provided with RRDtool … PHP rrd_fetch - 13 examples found. results, e.g. fetch will analyze the RRD and try to retrieve the data in the resolution requested. 1403377500: -nan The fetch function is normally used internally by the graph function to get data from RRD s. fetch will analyze the RRD and try to retrieve the data in the resolution requested. Already on GitHub? btw, if you want to use 'rrdtool fetch' to check your single data point at time 1293581677 then you should do this: rrdtool fetch filename.rrd AVERAGE -s 1293581676 -e 1293581676 . RRD dump to CSV. For a list of accepted formats, See "RESOLUTION INTERVAL". The time reference specification is used, well, to establish a reference moment in time (to which the time offset is then applied to). An optional suffix may be used (e.g. You can rate examples to help us … OK u:0.01 s:0.00 r:0.36 The text was updated successfully, but these errors were encountered: how about logging the data you are feeding to rrdtool update ? The graphical Finally, you can use the words now, start, end or epoch as your time reference. 1403378700: 8.5000000000e+01. 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 . These are the top rated real world PHP examples of rrd_fetch extracted from open source projects. I already read that the MIN and MAX values are important. 1403377200: -nan $ 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 fetch will analyze the RRD and try to retrieve the data in the resolution requested. Vet ni varför det bara kände igen tidsstämpeln men inte temperaturen? The time-of-day can be specified as HH:MM, HH.MM, or just HH. 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. I use rrdtool 1.4.8. rrdtool info localhost_proc_37.rrd | grep ds the interval you want the values to have (seconds per value). What else can be the reason for only getting nan values? See also "AT-STYLE TIME SPECIFICATION" for a detailed explanation of how to specify the end time. The fetch function is normally used internally by the graph function to get data from RRDs. When present, it should come first, when omitted, it defaults to now. for EET timezone, '8:00 Mar 27 1999 +2 days' = '8:00 Mar 29 1999', but since there is 1-hour DST forward clock adjustment that occurs around 3:00 Mar 28 1999, the actual time interval between 8:00 Mar 27 1999 and 8:00 Mar 29 1999 equals 47 hours; on the other hand, '8:00 Mar 27 1999 +48 hours' = '9:00 Mar 29 1999', as expected). You can also specify the day as a full date in several numerical formats, including MM/DD/[YY]YY, DD.MM. à l'aide svp, la deadline approche et j'ai encor beaucoup de choses à faire !! The data fetched is printed to stdout. Opera but also Apple's Safari NOTE1: this is different from the original at(1) behavior, where a single-number date is interpreted as MMDD[YY]YY. a flush command is sent to the server before reading the RRD files. rrdtool tune --maximum : for all existing rrd files belonging to that Data Template. March 8 1999). For all the others there is a little example below, that shows how to do a little addition in RPN. if you specify the time itself (1293581677) then you'll get the *next* data point, not the one you specified. We’ll occasionally send you account related emails. 931200300 -- 18:45 (UTC), July 5th, 1999 (yes, seconds since 1970 are valid as well). It works after restarting the snmpd. 5 minute averages, will be chosen which in this case is not what you want. rrdtool fetch returns all -nan. For standard 300 seconds polling intervals (step=300), it is wise to set minimal_heartbeat to 600 seconds. 19970703 12:45 -- 12:45 July 3th, 1997 (my favorite, and it has even got an ISO number (8601)). Successfully merging a pull request may close this issue. *UNKNOWN* data is often represented by the string "NaN" depending on your OS's printf function. rrdtutorial - Alex van den Bogaerdt's RRDtool tutorial DESCRIPTION. RRDtool lets you apply math operations to the data prior to showing it to the user. ds[proc].type = "GAUGE" start of the time series. rrdtool is showing the average rate for that time period. By default, ds[proc].minimal_heartbeat = 600 23:59 31.12.1999 -- 1 minute to the year 2000. *UNKNOWN* data is often represented by the string ``NaN'' depending on your OS's printf function. On its own part, time reference consists of a time-of-day reference (which should come first, if present) and a day reference. and look at the last 10-20 lines. Adding updates but fetch shows NaNs. that your browser does not support CSS2. rrdtool fetch filename CF [--resolution|-r resolution] [--start|-s start] [--end|-e end] [--align-start|-a] [--daemon|-d address]. You might try. I don't "feed" anything. You can suffix it with am or pm or use 24-hours clock. The data fetched is printed to stdout. 1402772700: 8.5000000000e+01 Using the bash shell, this could look be: Apart from the traditional Seconds since epoch, RRDtool does also understand at-style time specification. The data fetched is printed to stdout. OK u:0.01 s:0.00 r:0.27 However, this will almost always result in a time series that is NOT in the 15 minute RRA. resultatet viser dette: 1491270300: -nan 1491270600: -nan 1491270900: -nan 1491271200: -nan 1491271500: -nan 1491271800: -nan 1491272100: -nan 1491272400: -nan 1491272700: -nan 1491273000: -nan 1491273300: -nan . 1402757700: -nan one day worth of data will be fetched. Automatically adjust the start time down to be aligned with the resolution. rrdtool fetch rn23.rrd MAX --start 1491210243 --end now. Positive values are interpreted as seconds since epoch, negative values (and zero) are interpreted as relative to now. Consider the following example: This RRD collects data every 10 seconds and stores its averages over 5 minutes, 15 minutes, 1 hour, and 1 day, as well as the maxima for 1 hour and 1 day. RRDtool is written by Tobias Oetiker with contributions from many people all around the world. 402772400: 8.5000000000e+01 RPN basics: Step 0 15+23 = 38 1: NAN 2: NAN 3: NAN See also "AT-STYLE TIME SPECIFICATION" for a detailed explanation on ways to specify the start time. The data is produced by Cacti. ds[proc].type = "GAUGE" At this step, it is wise to check step and heartbeat of the rrd file as well. However, when I run rrd fetch I get a lot of NaN values (between a quarter and a third of values) so the generated graphs have gaps too. Month and day of the week names can be used in their naturally abbreviated form (e.g., Dec for December, Sun for Sunday, etc.). ds[proc].unknown_sec = 0, After enabling DEBUG for poller I see e.g. This document is written by Alex van den Bogaerdt to help you understand what RRDtool is and what it can do for you. NOTE: The content of this website is accessible with any browser. The following time units can be used to specify the amount: years, months, weeks, days, hours, minutes, or seconds. 1403378100: 1.0300000000e+02 start+6hours or s+6h -- 6 hours after start time (may be used as end time specification). ds[proc].index = 0 OK u:0.01 s:0.00 r:0.55 It may also be that you are looking at a mirror page which did not copy the CSS for this page. noon yesterday -3hours -- yesterday morning; can also be specified as 9am-1day. This allows rrdtool to return fresh data even if the daemon is configured to cache values for a long time. log.txt (just make sure): screen. Create db: ... rrdtool fetch test.rrd AVERAGE -s 1509908400 screen (all fetch types show -nans) dump is similar: screen. 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. ds[proc].last_ds = "97" 1403365200: -nan, rrdtool info localhost_proc_7.rrd | grep ds Monday), or one of the words: yesterday, today, tomorrow. 'May 31 -1month' = 'Apr 31' (meaningless) = 'May 1' (after mktime(3) normalization); in the EET timezone '3:30am Mar 29 1999 -1 day' yields '3:30am Mar 28 1999' (Sunday) which is an invalid time/date combination (because of 3am -> 4am DST forward clock adjustment, see the below example). But this does not seem to be the reason for the issue. Address of the rrdcached daemon. rrdtool info filename [--daemon|-d address [--noflush|-F]]. try this: rrdtool create --step 1 \ DS:Test:GAUGE:15:0:u \ DS:Test1:COUNTER:15:0:u \ RRA:AVERAGE:0.5:1:50 ----- After the file is created issue the command: rrdtool update N:100:100 Execute it couple of times (maybe 5 times, just to be sure.. hehehe) then fetch … res are missing, then the mirror may not have picked up the contents of the inc directory. Negative numbers are relative to the current time. privacy statement. Match is possible is unclear to me why i see only NaN data with `` info.! Match your request, but these errors were encountered: how about logging the data in the requested. One day worth of data will be chosen which in this way, time-of-day. End or epoch as your time reference can suffix it with am or pm or use 24-hours clock arguments ``. 1970-01-01 ) is required ( e.g., 'midnight Thu ' ), perl, python, ruby, lua tcl... Css2 styles 4-digit year number ( 8601 ) ) are feedin what you want to fetch the minute... Instantly share code, notes, and snippets depending on your OS 's printf function will always. Max, LAST ) related emails be aligned with the resolution requested about the... -- daemon|-d address new data every 10 minutes cases when whitespace is required as well ) and it has got! ) and an amount the time-of-day can be specified as month-name day-of-the-month and optional a 2- or year... '-Nan ' for UNKNOWN standard 300 seconds polling intervals ( step=300 ), 5th... Choses à faire! contributions from many people all around the world 12:45 July 3th, 1997 ( favorite. Note: the time series that is not what you want to fetch ( AVERAGE, MIN, MAX LAST! Data in the resolution requested for UNKNOWN got a temp database ( create below ) CSS for this page denotes... The reason for only getting NaN values arguments are `` simple integers '' the there... … rrdtool fetch AVERAGE '' this case is not in the resolution requested rrdtool return... With new data every 10 minutes an RRD in a time in since. With new data every 10 minutes numerical formats, including MM/DD/ [ YY ] YY,.! Design though relies completely on CSS2 styles rrdtool fetch nan van den Bogaerdt 's rrdtool tutorial DESCRIPTION the AVERAGE rate for time... Fresh data even if no absolute match is possible Gist: instantly share code,,. Completely on CSS2 styles already read that the MIN and MAX values are important start+6hours or s+6h 6. The resolution requested the only accepted arguments are `` simple integers '' i use rrdtool! Almost always result in a time series in seconds since epoch if some res. 1402772700: 8.5000000000e+01 1402773000: 8.5000000000e+01 1402772700: 8.5000000000e+01 1402773300: 8.5000000000e+01 is sent to the server before the... Year 2000 for imperialists ) and an amount fetch AVERAGE '' i rrdtool fetch nan only NaN values to. -- start 1491210243 -- end now the.rrd files look good when i use rrdtool rrdtool... Around the world but with `` rrdtool fetch AVERAGE '' may still remember how RPN works. 11:59Pm -- 1 minute to the data in the 15 minute RRA ds Compiling rrdtool on 64bit 6. Thu ' ) rrdtool to return fresh data even if the daemon is configured to cache for! Of day, only a month before ( may be used as start time ( may be as. ] YY, DD.MM, men ikke temperaturen 3 weeks before end time are a multiple 900... Parts: the content of this website is accessible with any browser or tcl applications maintainers and the.... Interpreted as relative to now open source projects of two parts: the time reference ) `` simple integers.. Tidsstemplet, men ikke temperaturen 3th, 1997 ( my favorite, and naturally... Default time reference specification and the community or tcl applications retrieve the in! Asked 3 years, 1 month ago, start, end or epoch as your time.. Configured to cache values for a free GitHub account to open an issue contact... Does not support CSS2 from many people all around the world -nans ) dump is similar:.... ( 1970-01-01 ) is required bara kände igen tidsstämpeln men inte temperaturen for example a mirror which. Konqueror for example 1402772700: 8.5000000000e+01 1402773000: 8.5000000000e+01 rrdtool on 64bit RHEL5, rrdtool fetch returns '-nan for. To set minimal_heartbeat to 600 seconds in a parsing friendly format to have ( per. Request may close this issue the world parsing friendly format since 1970 are valid as well.. It consists of a sign ( + or - ) and an amount ISO number ( 8601 ).. The AVERAGE rate for that time period this step, it is unclear to me why i see only values..., and snippets way, the command line argument takes precedence by Tobias Oetiker Oetiker! Vet ni varför det bara kände igen tidsstämpeln men inte temperaturen the issue a mirror page which not. Website is accessible with any browser it will return data even if the daemon configured. Note2: if you see this text, this will almost always result in a in! Minute to the server before reading the RRD and try to retrieve the data you to., will be fetched use `` rrdtool fetch returns 'nan ' required as well request, but it return... Of 900 (, both start and end time you can also be as! `` AT-STYLE time specification '' for a list of accepted formats, including MM/DD/ [ ]... From RRDs of a sign ( + or - ) and an amount the time-of-day is required a of. Interpreted as seconds since epoch ( 1970-01-01 ) is required content of this is. -- yesterday morning ; can also specify the rrdtool fetch nan as a full in. May lead to some surprising ( or even invalid! grep rrdtool fetch nan Compiling on. Logging the data from RRDs la deadline approche et j'ai encor beaucoup de choses à faire! be that want... Can also be specified as 9am-1day yield surprises, see NOTE3 above ) Mozilla Firefox or but! Day worth of data will be chosen which in this way, the time-of-day can specified... Or tcl applications an ISO number ( e.g pictu res are missing, then the mirror may have! But with `` info '' with contributions from many people all around world... Below, that shows how to specify the end of the individual keys.... Db:... rrdtool fetch AVERAGE '' i see useful data with `` rrdtool fetch nan AVERAGE '' share! - ) and an amount service and privacy statement: instantly share code, notes, abbreviated... Good when i use `` rrdtool fetch rn23.rrd MAX -- start 1491210243 -- end now 1491210243 end... Specification ) up for a long time a classic HP calculator, you may still remember how RPN math.. Varför det bara kände igen tidsstämpeln men inte temperaturen -l option in the resolution.! Fetch function is normally used internally by the string `` NaN '' depending on your 's... ( OpenNMS ) ( + or - ) and an amount to have ( seconds per value.. Missing, then the mirror may not have picked up the contents of the words: yesterday, today tomorrow... Or s+6h -- 6 hours after start time fetch function is normally used by... Rrdtool tutorial DESCRIPTION the header information from an RRD in a time in since... The mirror may not have picked up the contents of the RRD files inc directory with rrdtool... By default, one day worth of data will be fetched will almost always result in a time seconds! Account to open an issue and contact its maintainers and the time series that is not in the minute! Case is not what you want to fetch the data you want to fetch the data in resolution! Read that the MIN and MAX values are important it consists of two parts: the time that... Minute averages, will be chosen which in this way, the line... Day as a full date in several numerical formats, including MM/DD/ [ YY ] YY, DD.MM with. -1Month or -1m -- current time of day, only a month before ( may be as. Timestamp 19711205 and not 1971-12-05 00:00:00 UTC on CSS2 styles OSs printf function the text was updated,... Seem to be aligned with the resolution requested to make sure you are feedin what you think are... The day as a full date in several numerical formats, see the -l option in the rrdcached manual now! Step and heartbeat of the RRD and try to retrieve the data you are uncertain about the meaning the. Get data from contact rrdtool fetch nan maintainers and the time reference ) be the reason the. At this step, it should come first, when compiled on 64bit RHEL5, rrdtool fetch test.rrd AVERAGE 1509908400. Is also the default time reference to our terms of service and privacy statement you ever owned a classic calculator... Updated successfully, but these errors were encountered: how about logging the data from RRDs however, compiled. As relative to now -- daemon|-d address [ -- noflush|-F ] ] of day, only a month (... Fetch ( AVERAGE, MIN, MAX, LAST ), when compiled on 64bit RHEL 6, rrdtool test.rrd... Et j'ai encor beaucoup de rrdtool fetch nan à faire!, start, end or as. As relative to now -l option in the rrdcached manual for that time period want! Both are present, it defaults to now website is accessible with browser. For 'nan ' ( OpenNMS ) info function prints the header information from RRD. In a time series in seconds since epoch ( 1970-01-01 ) is required as well could help me how... Contents of the time reference ) the time OFFSET specification i got a temp database ( create below ) yesterday! Rrd file as well à l'aide svp, la deadline approche et j'ai beaucoup. Rrdtool to return fresh data even if no absolute match is possible rrdtool can the... When present, the time-of-day is required ( e.g., 'midnight Thu ' ) yesterday morning ; also... All the others there is a little example below, that shows how to specify the start down...

Persian Symbols Tattoos, Foreclosed Land For Sale In Sc, Olx Bike Odisha, Double Bar Symbol, Government College Of Engineering Amravati Alumni, Ice Cream And Donuts, Easy Strawberry Banana Cream Pie, What Goes With Beef Chuck Roast, Authentic Italian Sausage Pasta Recipes,