influxdb select distinct tag values

The problem is, distinct seems to return 2 tables. If you are going to reach this limit by any means, that tag should probably be a field. Intro talk to time series data, InfluxDB, and the TICK stack . InfluxDB Cloud and InfluxDB OSS 2.0 ready for production.. Upgrade to InfluxDB Cloud; Upgrade to InfluxDB OSS 2.0 Metric Reporters # Flink allows reporting metrics to external systems. InfluxDB is a schema-less DB. Example 5: Count the distinct field values associated with a field key > SELECT COUNT(DISTINCT("level description")) FROM "h2o_feet" name: h2o_feet time count ---- ----- 1970-01-01T00:00:00Z 4 The query returns the number of unique field values in the level description field key and the h2o_feet measurement. > SHOW TAG KEYS WHERE "machine" = 'unit42' > --- show all tag values across all measurements for the machine tag > SHOW TAG VALUES WITH KEY = "machine" name: temperature key value--- -----machine unit42 machine unit43 > --- show tag values for a specific database and measurement > SHOW TAG VALUES ON test FROM temperature WITH KEY = "machine" randomly select values TOP( field,n: greatest n values cannot be used with another function (not even bottom PERCENTILE( field,n: value that is larger than n percent of the field values BOTTOM( field,n: smallest n values cannot be used with another function (not even top MIN( FIRST( oldest influxdb 2.0 drop measurement. InfluxDB is an open-source time series database (TSDB) developed by InfluxData.It is optimized for fast, high-availability storage and retrieval of time series data in fields such as operations monitoring, application metrics, IoT sensor data, and real-time analytics. Example. It's diffrerent from mysql I know we can use show tag values to do the same thing but we may query very more times. Tag and Field Value SELECT * FROM "h2o_feet" WHERE "location" = 'gainesville' ‒ MeasurementTagKeys: Same as TagKeys but limited to a single table. The output shows the top values of water_level for each tag value of location (santa_monica and coyote_creek). I am facing a problem, the content of the columns of the CSV file is very badly arranged.I'm looking for a way to parse a field key and create a multiple tag value based on this field key.. Let's take the following example: Column "date":"1527151459" Column "meter_a10$1_power_L123_factor_min . These reporters will be instantiated on each job and task manager when they are started. The key is to use sub-queries (InfluxDB 1.2+) to capture each tag's measurements separately. Influxdb: count() doesn't support tag. The following options are supported: url - the url to connect to InfluxDB; org - default destination organization for writes and queries; token - the token to use for the authorization; timeout - socket timeout in ms (default value is 10000); verify_ssl - set this to false to skip verifying SSL certificate when calling . started 2018-08-09 18:32:51 UTC. For this to work, you need to be aware of two things: retention policy and continuous query. We recommend re-organizing your schema so that all of your data live in one measurement. This is an example flow to save the decoded LoRaWAN payloads from OpenCollar sensors coming from Chirpstack to an InfluxDB. I am using Telegraf to insert a huge CSV file that contain 4 years of data into my InfluxDB database.. To combine aggregated measurements under different tags is a bit tricky. InfluxDB Concepts. Troubleshooting InfluxDB Flux: The function "schema.tagValues()" does not support a "stop time range" and more filter options Issue. SHOW TAG VALUES already returns the deduplicated set of values. Overview. For an in-depth walkthrough of querying SQL data, see Query SQL data sources. All data must be under a single measurement to query it together. . I tag by serial number so my series will look like this: tags { serial: x1234 } fields { os_version: "Mac OSX 10.12.5" } I can do this to get a list of distinct versions, I want the last known value. It is not trivial, since the query can no longer be answered directly from the metastore, but it seems easier than making functions accept tags, which is a totally new code path. ‒ MeasurementTagValues: Same as TagValues but limited to a single table. Tags and Fields can be added on the fly! 1.x areinfluxql flutriaged kinfeature-request wontfix. In case, you're getting the Out of Memory error, and the value of this config is inmem then, may be, the issue can be resolved if you change the value of this configuration from inmem to tsi1. What data is stored, string key with value of long, double, bool, or string type Since you can't query tags without including at least one field, how do you get a list of distinct server names? I'm trying to get a count of unique occurrences of a tag. InfluxDB is not a relational database and mapping data across measurements is not a great schema. Intro; Manual queries. You can rate examples to help us improve the quality of examples. select distinct("last") from (SELECT last("os_version") FROM "computers" GROUP BY serial) name: computers time distinct This will produce entries in InfluxDB like this: InfluxDB output when using tags. influxdb delete measurement with tag. Then, since the field names are the same, they need to be renamed. Via File. This topic has been deleted. The SELECT statement returns all field values if all values have the same type. Python InfluxDBClient.query - 30 examples found. This is where you select which metrics you want to include on the chart. Note: Queries with the syntax SELECT TOP(<field_key>,<tag_key>,<N>), where the tag has X distinct values, return N or X field values, whichever is smaller, and each Queries with the syntax SELECT BOTTOM(<field_key>,<tag_key>,<N>) can return fewer points than expected. time is always a tag. Reporter # Metrics can be exposed to an external system by configuring one or several reporters in conf/flink-conf.yaml. . zqq May 2, 2018, 8:27am #3. Genesis. 過度な期待はしないで下さい。. influxdb drop measurement data. ‒ MeasurementNames: table names that satisfy some provided predicate. OpenCollar Chirpstack Uplink to InfluxDB. If you use a the Flux function "schema.tagValues()" it returns all possible values instead of the ones present in the selected time period. name: epdetail6-----time count 1970-01-01T00:00:00Z 51454 The above query for time interval of Last 10 days takes almost 8 seconds to The solution is perfect for a simple case without tags in aggregated data. Tags are always indexed, due this fact only a maximum of 100.000 Tags are recommended by influx. Introduction to InfluxDB: InfluxDB is an open source distributed time series database. Now here comes the problem: You cannot do a "GROUP BY" in Influxdb that connect two values. I'm using a 'filter' to select the relevant data, then distinct to return only the distinct values. The filter() function. （4）Store numeric values as fields (tag values only support string values) 2.4 measurement The measurement acts as a container for tags, fields, and the time column, and the measurement name is the description of the data that are stored in the associated fields. InfluxDB is an open-source time series database (TSDB) developed by InfluxData.It is optimized for fast, high-availability storage and retrieval of time series data in fields such as operations monitoring, application metrics, IoT sensor data, and real-time analytics. Nov 14, 2017 — Both tag and field are key values but tag accepts strings, where fields accepts integers and floats. Recommended schema (`cow_group_id` and `cow_id` are tags): > SELECT * FROM "cows" name: cows . Measurements 'PV', 'Channel' Sort of like an RDB table, top level structure. > select distinct(USR) from myDB name: myDB time distinct ---- ----- 0 User1 0 User2 0 User3 0 User4 > I would like to display all the columns not only USR, but from what I've understood with the distinct() function this is a normal behavior, so is there a workaround to display all the columns for the distinct USR values only ? Influxdb query like this: SHOW TAG VALUES FROM m WITH KEY = "servername". Sharding Data (Usually requires application level code) Existing Tools . InfluxDB Concepts. @The-Nik you can use SHOW TAG VALUES plus some shell to get what you want: $ influx -execute 'show tag values with key = a' -database mydb will print a list of all tag values associated with the key a on the database mydb.The output has two header lines, so if you pass it to wc -l just subtract 2 for the actual count: $ influx -execute 'show tag values with key = a' -database mydb | wc -l and . In Grafana, we can use template to show distinct servernames. The following options are supported: url - the url to connect to InfluxDB; org - default destination organization for writes and queries; token - the token to use for the authorization; timeout - socket timeout in ms (default value is 10000); verify_ssl - set this to false to skip verifying SSL certificate when calling . Via File. I needed to build an API for InfluxDB and to plug with Python libraries (scipy, pandas, etc …). Example measurement: Temperature. Flux can query data from other data sources such as CSV, PostgreSQL, MySQL, Google BigTable, and more. InfluxDB Flux - get count of distinct occurrences. Looks weird. filter() performs operations similar to the SELECT statement and the WHERE clause in InfluxQL and other SQL-like query languages. (distinct(host)) FROM (SELECT value, host FROM cpu) Not as performant as an ideal solution, but it works. = 3,456,000,000 distinct points per day. The problem is, distinct seems to return 2 tables. InfluxDB data source. But it turns out best for InfluxDB and Grafana because of the power of tags. InfluxDB is running on a Raspberry Pi in my home network (with separate attached disk), and I installed a Grafana on top of it, to visualize crucial data. Multi-Value: True: Value Groups/Tags: Enabled: Tags Query: SHOW TAG VALUES FROM . It also includes an example to post the incoming GPS points onto the Worldmap UI. . delete from measurement influxdb. と思った私が適当に必要そうな所を抜粋&補足したものです。. All values in InfluxDB are case-sensitive: MyDB!= mydb!= MYDB. Genesis. I use the linux client to connect to my server, and it comes up fine. I managed to find this post which has the answer. jsternberg on 29 Jun 2017 A client can be configured via *.ini file in segment influx2.. InfluxDB Database concepts. I needed to build an API for InfluxDB and to plug with Python libraries (scipy, pandas, etc …). These two separate queries work on their . If you've already changed the index-version . The default value is inmem for index-version and it makes the InfluxDB to store the data in the memory. That's why I decided to create this repository in order to deal with InfluxDB in a smooth way and to manipulate Python object. Only users with topic management privileges can see it. InfluxDB has a few key concepts that underpin its data model. sevilnatas May 3, 2018, 3:48am #4. Click Add data source and then click InfluxDB. Remove zero value from database? Troubleshooting InfluxDB Flux: The function "schema.tagValues()" does not support a "stop time range" and more filter options Issue. Float - default numerical value, when we request value=2990.0 or value=2990 it will be stored as float Finally you can manipulate them as needed. Where against Regex (tag) select value from some_log_series where host ‒ TagValues: distinct tag values (column values) with data matching predicates for a set of tag keys (columns). Navigate to Grafana, login, and then go to your data sources configuration page. Rob July 27, 2020, 7:25pm #1. BUT it also creates a new series containing the values of the removed TAG (which can be handy when transforming TAGs into measurements used for annotations). influxdb 2 delete all measurement data. __Actual behavior:__ The result is empty, meaning no rows are . Search results for '[influxdb] select substring of a tag's value, for geohash-based spatial aggregation?' (newsgroups and mailing lists) 100 replies [OSM-talk] Is it technically and legally possible to add the Open Location Code to the OSM search? The . と思った私が適当に必要そうな所を抜粋&補足したものです。. Influxdb and Grafana combine multiple SELECT. Measurement names are strings, and, for any SQL users out there, a measurement . 2y. > SHOW TAG KEYS WHERE "machine" = 'unit42' > --- show all tag values across all measurements for the machine tag > SHOW TAG VALUES WITH KEY = "machine" name: temperature key value--- -----machine unit42 machine unit43 > --- show tag values for a specific database and measurement > SHOW TAG VALUES ON test FROM temperature WITH KEY = "machine" There is no need to quote or escape keywords in the write syntax. How data is indexed and searched, always a string key/value pair. •container for tags, fields and timestamp •conceptually similar to a table •Tag •The key-value pair that records metadata •Tags are optional and they are indexed •Field •Required •Not indexed 29-30 May 2017 Database Futures Workshop 5 >show measurements-----name database httpd queryExecutor runtime >show tagkeysfrom"database . I connected the influx client on my win7 -> linux, and it comes up empty again. A client can be configured via *.ini file in segment influx2.. You can only do that with a TAG. I'm trying to get a count of unique occurrences of a tag. The query below asks for the smallest field values of water_level for three tag values of the location tag key. I'm using a 'filter' to select the relevant data, then distinct to return only the distinct values. Influxdb query - group by tag: actype Input the following: The Grafana user info was defined if you followed my guide, however if you did not you can substitute these credentials with the varken user instead. influxdb. InfluxDB 1.5.2 on CentOS 7. This document describes how to install and set up the TIG-stack for use with TimeKeeper. I have some network counters in Influx that I graph with Grafana. Join that data with data in InfluxDB to enrich query results. Get familiar with this screen, because you're going to be spending a lot of time looking at this query editor. These reporters will be instantiated on each job and task manager when they are started. Jun 3, 2020 at 8:15. . I set up a 1.6.1 instance on my wintel box. See the official installation instructions for how to set up an InfluxDB . Click Save & Test. Example 5: Count the distinct field values associated with a field key > SELECT COUNT(DISTINCT("level description")) FROM "h2o_feet" name: h2o_feet time count ---- ----- 1970-01-01T00:00:00Z 4 The query returns the number of unique field values in the level description field key and the h2o_feet measurement. influxdb delete measurement based on date. In this weekly post we recap the most interesting InfluxDB and TICK-stack related issues, workarounds, how-tos and Q&A from GitHub, IRC and the InfluxData Community that you might have missed in the last week or so. __Steps to reproduce:__ Try to run SHOW TAG VALUES CARDINALITY FROM "database" WITH KEY = "database" WHERE time > NOW() - 1d. The _value of each output record is set to the distinct value in the specified column.null is considered its own distinct value if it is present.distinct() is a selector function. Select InfluxDB in the Query drop-down box I'm trying to combine stats from a couple ethernet interfaces and combine them to show aggregate bandwidth. InfluxDB Query builder; Prometheus Query builder; Why create manual Influx queries? Rather than update DISTINCT() to accept tags (), we could accomplish much the same goal if the SHOW TAG VALUES query respected a WHERE time clause. Value More Info; Name: interface: Type: Query: Label: Interface: Data Source: InfluxDB: Query: SHOW TAG VALUES FROM interface WITH KEY = "ifDescr" WHERE agent_host = '2coin.org' The main default query that creates all the values that appear in the drop down list. So we exported the data, downgraded influxdb from 1.6.1 to debian unstable, 1.5.3-2, imported and it's fine. influxdb. Sumber: influxdata/influxdb Ini berbeda dari mysql Saya tahu kami dapat menggunakan nilai tag acara untuk melakukan hal yang sama, tetapi kami mungkin meminta lebih banyak lagi Tags are the ones, which you want to select on: Show xx where Tag = Special value or Show xx group by Tag. If you use a the Flux function "schema.tagValues()" it returns all possible values instead of the ones present in the selected time period. Grafana, we can use template to show aggregate bandwidth show tag values & quot ; &... Top rated real world Python examples of influxdb.InfluxDBClient.query extracted from open source projects box! System Documentation parameter that expects a predicate function, an anonymous function comprised of one or more predicate expressions examples! For a simple case without tags in aggregated data power of tags and continuous.... # x27 ; ve already changed the index-version on the InfluxQL Syntax page my server, and the clause! Any means, that tag should probably be a field Grafana, we can use template to distinct! Of Memory Solution | Codiwan.com < /a > InfluxDB Flux - get count of unique occurrences of tag. Or several reporters in conf/flink-conf.yaml last day be exposed to an external system by configuring one or several reporters conf/flink-conf.yaml! Or escape keywords in InfluxDB to enrich query results > via file aware of things! Metrics you want to include on the InfluxQL Syntax page walkthrough of querying SQL,! Ask your own question are case-sensitive: MyDB! = MyDB InfluxDB and to plug Python... Underpin its data model an example flow to save the decoded LoRaWAN from. When they are started field values of the data can be exposed to an external system configuring. July 27, 2020, 7:25pm # 1 client can be configured via.ini... To quote or escape keywords in InfluxDB like this: InfluxDB output when using tags find! A messy and sparse: //nightlies.apache.org/flink/flink-docs-release-1.14/docs/deployment/metric_reporters/ '' > influxdb-client - PyPI < /a Oh! A bit of a tag the SELECT statement and the TICK stack predicate function an... Influxdb 1.5.2 on CentOS 7 data is indexed and searched, always a string key/value pair OpenCollar sensors from... Return the number of distinct occurrences is distinct and it comes up fine values in InfluxDB x27 ; trying... Relational database and mapping data across measurements is not a relational database and mapping data across measurements is a. Tags and fields can be exposed to an external system by configuring one or several reporters conf/flink-conf.yaml... To SQL heads, this is where you SELECT which Metrics you want to include on the InfluxQL Syntax.! Water_Level for three tag values already returns the deduplicated set of values we can template! Influxdb query builder ; Prometheus query builder ; Why create manual Influx Queries from database as TagKeys limited., etc … ) win7 - & gt ; linux, and, for any SQL users Out,...: //www.reddit.com/r/influxdb/comments/9anuvv/show_tag_values_is_empty/ '' > InfluxDB 1.5.2 on CentOS 7 an InfluxDB users Out there, a measurement to! For InfluxDB and to plug with Python libraries ( scipy, pandas, etc … ) and where! Distinct-Values or ask your own question manual Influx Queries write Syntax: //python.hotexamples.com/examples/influxdb/InfluxDBClient/query/python-influxdbclient-query-method-examples.html '' > InfluxDB Out Memory. | InfluxDB Cloud Documentation < /a > Oh, also InfluxData Documentation Archive < /a > InfluxDB data.. A measurement they are started fn parameter that expects a predicate function, anonymous! ) to capture each tag & # x27 ; m trying to combine stats from a couple ethernet interfaces combine... This post which has the answer query should return the number of distinct.... I needed to build an API for InfluxDB and Grafana combine multiple SELECT < /a > concepts! Influxdb Flux - get count of unique occurrences of a tag //pypi.org/project/influxable/ '' > CSV - Parse field to... Tag database that have data for the smallest field values of water_level for three tag values & quot worked! //Www.Influxdata.Com/Blog/Tldr-Influxdb-Tech-Tips-March-30-2017/ '' > Frequently Asked questions - InfluxData - W3cubDocs < /a > Oh,.! Document describes how to set up an InfluxDB ) to capture each tag & # x27 ; already! All values in InfluxDB like this: show tag values from m with key = & quot ; is,. # 3 > InfluxDBについて最初に知るべき10のこと - Qiita < /a > InfluxDB and to plug with Python libraries ( scipy pandas! Counters in Influx that i graph with Grafana wintel box can see it it! Use sub-queries ( InfluxDB 1.2+ ) to capture each tag & # x27 ; s separately... Water_Level for three tag values from m with key = & quot ; show tag values of water_level three..., etc … ) they are started aggregate bandwidth seems to return 2 tables: //archive.docs.influxdata.com/influxdb/v0.9/query_language/query_syntax/ '' > |! And set up an InfluxDB all the records from a couple ethernet interfaces and combine them show... Both tag and field are key values but tag accepts strings, and, for any SQL Out... Asked questions - InfluxData - W3cubDocs < /a > Genesis this will produce entries in InfluxDB the client! But limited to a single table task manager when they are started influxdb.InfluxDBClient.query... Function, an anonymous function comprised of one or several reporters in conf/flink-conf.yaml values in.. It comes up fine aggregated data new tag value Telegraf... < /a >.... 1.2+ ) to capture each tag & # x27 ; m trying to get a count of occurrences! A predicate function, an anonymous function comprised of one or several reporters in conf/flink-conf.yaml several reporters conf/flink-conf.yaml. On CentOS 7 of distinct occurrences connect to my server, and is... Measurements separately fields accepts integers and floats ; ve already changed the index-version already the. Be instantiated on each job and task manager when they are started for! Help us improve the quality of examples influxable - PyPI < /a > via file already changed the.... Application level code ) Existing Tools Apache Flink < /a > InfluxDBについて最初に知るべき10のこと - Qiita < /a >.... Collecting of the power of tags InfluxDB Tech Tips | InfluxQL and other SQL-like query language, is. Privileges can see it s measurements separately 3:48am # 4 Non-SELECT Queries in... < /a > InfluxDB data.. The Solution is perfect for a simple case without tags in aggregated data 1422568543702900257 BODY tags. More information about Flink & # x27 ; s metric system go to the metric system to! See the official installation instructions for how to set influxdb select distinct tag values the TIG-stack for use with TimeKeeper... < /a Genesis... All of your data live in one measurement to influxdb select distinct tag values up an.. | Flux 0.x Documentation < /a > InfluxDB Tech Tips | InfluxQL and other SQL-like query languages can use to! Meaning no rows are, they need to be aware of two things retention. Delete all the records from a couple ethernet interfaces and combine them to show bandwidth., they need to be renamed rows are Out best for InfluxDB Grafana! Or several reporters in conf/flink-conf.yaml you need to quote or escape keywords in write. A great schema this limit by any means, that tag should probably a... - & gt ; linux, and it comes up fine via file //docs.influxdata.com/flux/v0.x/stdlib/universe/distinct/ '' > CSV - Parse key! The Same, they need to be renamed with data in InfluxDB to enrich results! Influxdbclient.Query examples, InfluxDB, and, for any SQL users Out there, a measurement > Telegraph Grafana... Code ) Existing Tools can only query data from other data sources such as CSV PostgreSQL... Are key values but tag accepts strings, and more x27 ; m trying to combine stats a... Ask your own question manager when they are started of one or more predicate expressions comes fine... Location tag key for tag database that have data for the smallest field values of the of! //Www.Reddit.Com/R/Influxdb/Comments/Oyuott/Remove_Zero_Value_From_Database/ '' > CSV - Parse field key to create new tag value Telegraf... < >... Post which has the answer: //archive.docs.influxdata.com/influxdb/v0.9/query_language/query_syntax/ '' > Python InfluxDBClient.query examples,.... Open source projects OpenCollar Chirpstack Uplink to InfluxDB 3, 2018, 8:27am # 3 InfluxDB. Asks for the smallest field values of the location tag key empty.! Data across measurements is not a great schema Oh, also to single... A single table i needed to build an API for InfluxDB and Grafana because of the can... Field names are the top rated real world Python examples of influxdb.InfluxDBClient.query extracted from open source.... Can query data from other data sources ; m trying to get a count distinct... Get a count of distinct values for tag database that have data for last! Sql-Like query languages accepts integers and floats in the write Syntax from m with key = & quot worked... In the write Syntax enrich query results in aggregated data the problem is, distinct seems to return 2.., where fields accepts integers and floats vs InfluxQL | InfluxDB Cloud Documentation < >...: __ the result is empty data for the smallest field values of water_level for three tag &. Distinct ( ) function | Flux 0.x Documentation < /a > InfluxDB database concepts result is empty, meaning rows. ( ) function | Flux 0.x Documentation < /a > InfluxDB concepts pandas etc... And it is distinct and it comes up empty again from OpenCollar sensors coming from Chirpstack to an system. > via file statement and the TICK stack the deduplicated set of values value database... Postgresql, MySQL, Google BigTable, and more TagValues but limited to a single table ( has! ; linux, and the TICK stack source projects incoming GPS points onto the Worldmap UI, 2020, #! Start with something simple like client count per SSID InfluxDB query like this show. Aggregate bandwidth as TagValues but limited to a single table InfluxData Documentation Archive < >. By configuring one or several reporters in conf/flink-conf.yaml ; m trying to get a count distinct. 2 tables incoming GPS points onto the Worldmap UI: //iter01.com/631386.html '' > database! '' > distinct ( ) function | Flux 0.x Documentation < /a > InfluxDB of! That expects a predicate function, an anonymous function comprised of one or several reporters in....

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