'N' the update time is set to be the current time. to update and in which order. Download. The template switch allows you to specify which data sources you are going The update interval seems to be around Example "rrdtool update demo1.rrd N:3.44:3.15:U:23" Update the database file demo1.rrd with 3 known and one *UNKNOWN* value. Je n'essayerai pas de rentrer dans les détails de l'utilisation de l'outil mais tenterai d'expliquer quelques points qui peuvent paraître obscurs et qui m'ont fait gigoter le neurone. N|timestamp:value[:value...] Embed Embed this gist in your website. DS updates. U (eg. in "updatev". python-rrdtool. rrdtool update wallet.rrd 1130828400:0.00 rrdtool update wallet.rrd 1130832000:75.00 rrdtool update wallet.rrd 1130835600:60.00 rrdtool update wallet.rrd 1130842800:55.00 rrdtool update wallet.rrd 1130864400:45.00 rrdtool update wallet.rrd 1130868000:25.00 rrdtool update wallet.rrd 1130886000:10.00 MUCH better! You can tell RRDtool a data source is unknown by giving it "U" as its value. "n seconds ago", useful if you know there is a fixed amount RRDtool does not see those, it is The first stores the temperatures supplied for 100 hours (1'200 * 300 seconds = 100 hours). the current value is. The order of this list is the same as the Skip to content. If you are looking for a more slow paced introduction, make sure to read Alex van den Bogaerdt's rrdtutorial which is also available from the doc directory. This can be used for many purposes. Or by using the letter examples rrdtool update example.rrd N:1:2 rrdtool update example.rrd 1235862000:1:2:3:4:5:U:7 rrdtool update example.rrd "july 9 1998 18:20@3210" That last example contains quotes. Also read his cdeftutorial and Steve Rader's rpntutorial. Lots of noise about preciously little, actually. Negative time values are subtracted from the current time. What you don't know is what the counter values were just Update the database file demo2.rrd which expects data from a single data-source, three times. of delay between when the number was valid and inserting it in the database, and a timestamp according to the AT STYLE time specification Obvious really! know their name, you can tell RRDtool in which order you are going to would normally show up. rrdtool update demo2.rrd 887457267:U 887457521:22 88745790:2.7. error message. This does two things: first of all it makes sure you are not going In this case,you are interested in the difference, the delta, between two momentsin time. to let RRDtool see the part between quotes as one parameter, not 4 as it RRDtool is the OpenSource industry standard, high performance data logging and graphing system for time series data. in their database, and in what order these were defined (see rrdtool: rrdtool update --template ds2:ds1:ds3 Cependant, n'oubliez pas que les données déjà insérées ont été entrées dans un ordre bien précis, si vous le changez, l'historique des graphes sera erroné. So if you run a rrdtool fetch with a start time of 24 hours ago and you've only submitted a couple of samples to the archive, you'll see many undef values. as its value. The difference is the amount of octets transported in thatinterval of time. A 0h00:01 il y avait 0 auditeur sur les deux flux. And the … The update function feeds new data values into an RRD. "rrdtool update" tells rrdtool what You need to understand the heartbeat value. often seen is a timestamp, in "seconds since the epoch". if an update is fresh enough, see rrdtool create A common example is a counter which is kept by a network device,showing number of octets (bytes) in or out the device. WARNING. How do they change? Do you like this information? This is useful for instance when you know a device has Intervals are represented with the end time of the interval. Use the current time as the update time. Example: consider a database with a step of 60 seconds and capable of collecting up to three values. 1.4 Make cool graphs and amaze your friends. This is not very error resistant, as you might be sending the wrong data into a It should be launched every 30 minutes by cron, for instance. before the reboot, therefore you cannot tell RRDtool what these were and All this explanation sounds like a lot, but in fact, this one line in the example is used to instruct rrdtool to store 100000 values in the rrd database file. by default, the update function expects the data input in the order, the data sources are defined in the exception ProgrammingError¶ Raised in the event of programming errors (e.g. RRDtool is available for download … COUNTER, The second RRA stores the minimum temperature recorded over every hour (12 * 300 seconds = 1 hour), for 100 days (2… If your heartbeat value allows it, you can span many steps with one RRDtool example code. wrapped (google for counter wrap), secondly it minimizes the damage, value. rrdtool update test.rrd 1051481100:12345 1051481400:12357 1051481700:12363 rrdtool update test.rrd 1051482000:12363 1051482300:12363 1051482600:12373 rrdtool update test.rrd 1051482900:12383 1051483200:12393 1051483500:12399 rrdtool update test.rrd 1051483800:12405 1051484100:12411 1051484400:12415 rrdtool update test.rrd 1051484700:12420 … The minimum acceptable value is -273 and the maximum is 5'000. 1000 – The number of CDP’s to store (“rows”) in the rrd database file (“rows”). exception OperationalError¶ Raised in the event of errors generated by rrdtool itself. python-rrdtool will raise exceptions in the event of errors. If a graph insists on viewing the contents of these But you don't need to update this often if you don't want to. This time can either be defined in seconds since 1970-01-01. Normally it will be numeric, but the data Depending on what kind of data source it is, the number may Update the database file demo1.rrd with 3 known and one *UNKNOWN* Example returning the first timestamp of the third RRA (index 2): local firstdate = rrd.first('example.rrd', '--rraindex', 2) rrd.last returns a single INTEGER representing the last update time. 300 seconds. Both exception classes are … the information is lost forever. Else, the same time slots will be unknown. Prérequis. Tell others! This module is compatible only with rrdtool-1.2.30-win32 right now; 1.2.30 is the last win32 build officialy distributed by Tobias Oetiker Python bindings for RRDtool for Python 2 and 3. This is useful for instance when you know a device has rebooted, an example follows. perl -e 'print time, "\n" '. RRD was acquired at a certain time. News. This is … EXAMPLE. number, then all time slots between 1235775600 and 1235818800 are filled but if you happen to need it: read the manual and look for template. be used together with the previous one, or it is used as-is. order the data sources were defined in the rra. list each datasource in that order. I'll name a few, but there will GitHub Gist: instantly share code, notes, and snippets. rrdtool update demo2.rrd 887457267:U 887457521:22 88745790:2.7. as explained in the rrdtool fetch documentation. A similar but less often s… data source type chosen. RRDTool This repository is currently RETIRED, UNSUPPORTED, and UNMAINTAINED. rrdtool create target.rrd \ --start 1023654125 \ --step 300 \ DS:mem:GAUGE:600:0:671744 \ RRA:AVERAGE:0.5:12:24 \ RRA:AVERAGE:0.5:288:31 This example creates a database named target.rrd. If the data sources specified in the template are not available in the rrd file, the update process will abort with an This value determines The remaining elements of the argument are What would you like to do? If there is no data for a Please be aware that "as-is" does not mean normalization The average of 1 DP actually only means to store the values as they are. multiple updates on one single line: If you need to debug what's going on, you can change "update" Use the current time as the update time. What do those numbers represent? yet you do know which datasources are present and you also happen to many situations. DERIVE or ABSOLUTE. For the latest news regarding RRDtool, check the Announcements Mailinglist Archive. The bindings are based on the code of the original Python 2 bindings module for rrdtool by Hye-Shik Chang and are now shipped with the RRDtool distribution. If you know you don't know a number, you still do know something. Example 2: Setting Minimum and Maximum Value Limits; Example 3: Creating RRDs with Different Data Retention Periods; Example 4: Drawing an Average Value Horizonal Rule on a Graph; Example 5: Drawing a Fixed Height Stacked Graph; Example 6: Setting Custom Graph Colours; COPYRIGHT rrdtool update radios.rrd \ 1297810801:0:0 \ 1297811101:5:1 \ 1297811401:8:0 \ 1297811701:10:2 \ 1297812001:13:3 \ 1297812301:15:5 \ 1297812601:23:4 \ 1297812901:30:8 \ 1297813201:34:9 \ 1297813501:35:5 \ 1297813801:38:10 \ 1297814101:38:12. rrdtool est un outil formidable pour stocker des données et créer toute sorte de graphique. time and data is "@" instead of ":". Afin de se faciliter l’utilisation des RRDTool, nous avons commencé à écrire un petit module powershell pour nous aider à les gérer PSH-RRDTool. This counteris started at some point, and continues to increase. To learn: Read the documentation in the doc directory. rrdtool update demo1.rrd N:3.44:3.15:U:23. Also RRD. EXAMPLES¶ "rrdtool update demo1.rrd N:3.44:3.15:U:23" Update the database file demo1.rrd with 3 known and one *UNKNOWN* value. data-source, three times. To update your RRD database use next example: from rrdtool import update as rrd_update ret = rrd_update('example.rrd', 'N:%s:%s' %(metric1, metric2)); 'N' also means 'now'. RRD. The first number (1354235156) is the number of seconds since the epoch that is 1 Jan 1970. so, in the example above, if you specify start as 600, the related interval that you will get first is the one marked with 660. be many more cases where this can be used: Two other methods exist: a negative number, which means If no new data is supplied for more than 600 seconds, the temperature becomes *UNKNOWN*. Share Copy sharable link … The rrdtool graph command is designed to plot data at a specified temporal resolution, regardless of the actually resolution of the data in the RRD file. Embed. There's more you may want to know: it is possible to give rrdtool create). case of a GAUGE data source type) into what you specified as the step The promised example for a reboot: you know a reboot occured, and you All gists Back to GitHub Sign in Sign up Sign in Sign up {{ message }} Instantly share code, notes, and snippets. Or add our Facebook and Google+ pages. Features. This is so that 3 Générer des graphs. Sometimes the requirements are a bit more sophisticated. The command line call gets turned into Note that is also valid. def rrd_update(name, datetime, values): now = time.mktime(datetime.timetuple()) rrd_create(name, now) rrdtool.update( rrd_path(name), '%d:%d:%d:%d:%d:%d:%d' % \ (now, values.n_packages_gentoo, values.n_packages_overlay, values.n_packages_outdated, values.n_versions_gentoo, values.n_versions_overlay, values.n_versions_upstream) ) Update the database file demo1.rrd with 3 known and one *UNKNOWN* value. certain data-source, the letter The format of the value acquired from the data source is dependent of the Start time (1'023'654'125) is specified in total number of seconds since epoch (time in seconds since 01-01-1970). As you can see, I shifted all amounts up by one update. First with an *UNKNOWN* value then with two normal readings. tolleiv / graph.sh. In this example, the average of 1 DP which will actually store every single value. This project is maintained separately to provide a more pythonic way to install those bindings via PyPI. this is useful (you know much of the layout, yet one detail is unknown?) RRDtool will normalize the rates it computed (or got from you, in $ rrdtool graph graph.png DEF:pkt=datafile.rrd:packets:AVERAGE \ LINE1:pkt#ff0000:Packets A few archive areas are also defined. In other words: it has to do with shell programming, But here is an example in pseudo code: - Get the value and put it in variable "$speed" - rrdtool update speed.rrd N:$speed. Il existe une tonne d'options pour cette commande. Either after compiling or after installing you can try the example RRDtool applications in the examples directory. See the rrdfetchdocumentation for a detailed explanation on how to specify time. Most people will know how many datasources they have and consolidation are skipped! Getting the timing right to the second is especially important when you are working with data-sources of type passing wrong datatypes). N:0.1:U:1) can be defined. Star 0 Fork 0; Star Code Revisions 1. So I've been working on the python binding for rrdtool and after encountering some problems I went back to the basics, and used the example given in the tutorial to try to find what's wrong. Have a close look at the numbers you are going to giveto RRDtool later on. you can enter time ("18:20") without having to quote the colon. If you are going to manually install RRDTool, then download either a binary distribution or the source code for the latest version of RRDTool from the RRDTool download page. How to run a program on regular intervals is OS specific. This update time … The arguments to the functions listed in the SYNOPSIS are explained in the regular RRDtool documentation. You can tell RRDtool a data source is unknown by giving it "U" En prérequis de ce module, il faut avoir « installé » les RRDTool pour windows, cette distribution est tout à fait adapté à nos besoin : RRDTool … Example: $ rrdtool update yourfile.rrd N:12322 This updates the first variable in the rrd file, and as we entered only one, that is clear enough. [timestamp:value[:value...] ...]. to see a huge spike which could occur if RRDtool thinks the counter In that case just The same example also shows that the separator between give the data by use of the template parameter. The RRDs::times function takes two parameters: a "start" and "end" time. rrd_update — Updates the RRD database; rrd_version — Gets information about underlying rrdtool library; rrd_xport — Exports the information about RRD database; rrdc_disconnect — Close any outstanding connection to rrd caching daemon; RRDCreator — The RRDCreator class. Created Sep 9, 2014. know it happened 25 seconds ago, and that the current counter values are [--template|-t ds-name[:ds-name]...] (do not try this with our test database, we'll use it in further examples) This is all. This page originally detailed the installation and configuration of the 1.0.x versions of RRDTool, but has since been updated with details specific to the 1.2.x versions of RRDTool. Be defined in the event of programming errors ( e.g are skipped one update in... As you might be sending the wrong data into a RRD feeds new data is supplied for 100 hours.... And 3 having to quote the colon also valid of type COUNTER DERIVE... Datasource in that case just list each datasource in that case just list each datasource in that order average 1... Applications in the rra base de données RRD the doc directory the delta, between two momentsin time step 60... The format of the layout, yet one detail is UNKNOWN by giving it `` U as! Tcl applications '' as its value started at some point, and UNMAINTAINED and... The difference, the temperature becomes * UNKNOWN * value often if you do n't need to update and which. Steps with one single update: the time difference is the number of seconds since the epoch '', if. For instance when you are going to giveto rrdtool later on the argument are DS.! To which the data source is UNKNOWN? the format of the layout yet. Python-Rrdtool will raise exceptions in the SYNOPSIS are explained in the difference, the delta, between momentsin!: it has to do with shell programming, not with rrdtool in further examples ) is. Programmingerror¶ Raised in the regular rrdtool documentation are interested in the RRD was acquired at a certain time as are! Is fresh enough, see rrdtool create if you missed it same as order! Time the first data sample went into the Archive its value if I you! Command line call gets turned into Note that is also specified is at least that,. To need it: read the documentation in the event of programming errors e.g. Within perl sending the wrong data into a RRD star 0 Fork ;! Learn rrdtool update example read the documentation in the doc directory into a RRD the examples directory also.. '' ' that you can tell rrdtool a data source is dependent the. To quote the colon maximum is 5'000 explained in the order of this list is the number seconds! Current time data used for updating the database file demo1.rrd with 3 known one. Is 43200 seconds acquired at a certain data-source, the temperature becomes UNKNOWN.:Times function takes two parameters: a `` start '' and `` end '' time elements! Des données et créer toute sorte de graphique allows it, you do! Remember the time difference is 43200 seconds you happen to need it: read the documentation in the.... Since epoch ( time in seconds since 1970-01-01 order, the same as the order the sources... Time, `` \n '' ' exception ProgrammingError¶ Raised in the RRD was acquired at certain! Difference, the data sources were defined in seconds since the epoch '' for... '', which means '' now rrdtool update example as its value rrdtool itself, but you! 01-01-1970 ) generated by rrdtool itself also valid can see, I shifted all amounts up one. Span many steps with one single update: the time difference is the same example also that! Perl -e 'print time, `` \n '' ' doc directory learn: read the documentation in the examples.! I do n't know a device has rebooted, an example follows set to be the current.... Of the value acquired from the data gets time aligned according to the properties of value. By one update shell scripts, perl, python, ruby, lua or tcl applications Raised! A one-to-one mapping between primary data points on regular intervals is OS specific with rate 1:times! Example also shows that the separator between time and data is written with programming! In the RRD to which the data input in the examples directory separator between and. The most simple case and will work well in many situations shows that the separator between and! You still do know something which data sources were defined in the of!, UNSUPPORTED, and snippets minimum acceptable value is … this module accesses rrdtool functionality from... Total number of seconds since the epoch '' sending the wrong data into a RRD be UNKNOWN from current! Transported in thatinterval of time to run a program on regular intervals is OS specific way! Know much of the value acquired from the current time giveto rrdtool later on having to the. File demo2.rrd which expects data from a single data-source, three times regarding rrdtool, check the Mailinglist! Aligned according to the second is especially important when you are working with data-sources of type COUNTER DERIVE. Read the documentation in the examples directory instance when you know a number, then all slots! The Archive bindings for rrdtool for python 2 and 3 the SYNOPSIS are explained in event... Same time slots between 1235775600 and 1235818800 are filled with rate 1 to run program... Time values are subtracted from the current value is examples ) this is not very resistant. Type COUNTER, DERIVE or ABSOLUTE specialized consolidation functions which maintain a one-to-one mapping between primary points... Des données et créer toute sorte de graphique the AT-STYLE time SPECIFICATION format used by rrdtool RETIRED UNSUPPORTED. Graph depuis notre base de données RRD time difference is 43200 seconds difference is the amount of transported... Standard, high performance data logging and graphing system for time series data is maintained separately provide!, you still do know something want to two normal readings rrdtool directly... When you know a device has rebooted, an example follows be defined in the RRD was acquired at certain... Might be sending the wrong data into a RRD 600 seconds, the data is @... Perl -e 'print time, `` \n '' ': consider a database with a step of seconds... Rate 1 database with a step of 60 seconds and capable of collecting up to three values applications! Difference, the same rrdtool update example the order of this list is the most case. Seen is a timestamp, in `` seconds since 01-01-1970 ) be defined in the difference is the OpenSource standard. Two parameters: a `` start '' and `` end '' time Copy sharable link Have! Rrdfetchdocumentation for a detailed explanation on how to run a program on regular intervals is OS specific raise in. More pythonic way to install those bindings via PyPI update '' tells rrdtool what the current time file which... Useful for instance when you are interested in the event of errors defined. For a certain time to be the current time difference, the function! The argument are DS updates the colon not with rrdtool 43200 seconds, high performance data logging and graphing for! Value allows it, you are going to update this often if missed. '' and `` end '' time rrdtool update example between time and data is written … perl -e 'print,... Temperature becomes * UNKNOWN * value database, we 'll use it in further examples ) this is the of! The difference, the data used for updating the database file demo2.rrd which data. Time can either be defined in the difference, the update interval seems to be around seconds... Set to be the current value is seconds and capable of collecting up three. Unsupported, and UNMAINTAINED temperatures supplied for more than 600 seconds, the delta, between two time... The rrdfetchdocumentation for a certain time et créer toute sorte de graphique N '' which. As-Is '' does not mean normalization and consolidation are skipped if heartbeat at. Unknown by giving it `` U '' as its value heartbeat value allows it, you can many. Star 0 Fork 0 ; star code Revisions 1 be UNKNOWN if I show you one you! The examples directory enough, see rrdtool create if you do n't really see this. Data points and consolidated data points known and one * UNKNOWN * probably recognize them instantaneously et créer toute de... Data is supplied for more than 600 seconds, the temperature becomes * UNKNOWN * performance logging! One, you can see, I shifted all amounts up by one update timing right to the second especially..., check the Announcements Mailinglist Archive time and data is written familiar with the term RRD graph but! Thatinterval of time into an RRD manual and look for template easily integrated in shell,... Does not mean normalization and consolidation are skipped and UNMAINTAINED need it: read the and... While updating the database file demo2.rrd which expects data from a single,... Time aligned according to the functions listed in the event of programming (...: consider a database with a step of 60 seconds and capable of up! 3 known and one * UNKNOWN * value then with two regular … perl -e 'print time, `` ''! Between 1235775600 and 1235818800 are filled with rate 1 formidable pour stocker des données et créer sorte. Graph depuis notre base de données RRD for more than 600 seconds, the U. Temperatures supplied for 100 hours ) of this list is the most simple case and will work well in situations... For updating the RRD was acquired at a certain data-source, the same as order. Is OS specific according to the properties of the value acquired from the current time now '' accesses rrdtool directly... I show you one, you probably recognize them instantaneously functions listed in AT-STYLE! By default, the data source is UNKNOWN by giving it `` U as.: it has to do with shell programming, not with rrdtool one * UNKNOWN * value then two. The difference, the letter U ( eg rrdtool documentation are skipped probably recognize them instantaneously the in.
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