Care to explain more about using Time Aggregation? When any queried data source returns no series or numbers, the expression engine returns NoData. svetb October 25, 2021, 11:03am 2 In the case of using an expression on multiple queries, the expression engine requires that all of the queries return an identical timestamp. Or, sometime the problem could be on your windows firewall, make sure your server allow access to all port associated with your mysql database. You can limit the number of points to improve query performance or smooth the visualized line. (This function should probably take an argument so it can add precision to the rounded value). I've searched and tried to change the query but this error persists and doesn't give me more information than it might be. The first alert has a classic condition (the one with the ok status), and the other two alerts have a Reduce expression. My SQL database is in MySQL workbench in the same system where I am opening grafana in localhost:3000(in chrome browser). Docker host using IP address of your machine follow below steps: Thanks for contributing an answer to Stack Overflow! The variable is measured in either seconds ($__interval) or milliseconds ($__interval_ms). What information can you get with only a private IP address? For more information about query options, refer to Query options. is_inf takes a number or a series and returns 1 for Inf values (negative or positive) and 0 for other values. Each data sources query editor provides a customized user interface that helps you write queries that take advantage of its unique capabilities. Just like in math, the order that you place your functions can affect the result. Each collection is a set, where each item in the set is uniquely identified by its dimensions which are stored as labels or key-value pairs. If you get a panel query error or not seeing the data you expect to see the most important thing to do kyled May 13, 2019, 8:07pm 3. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. To open Chrome Dev Tools (F12, Ctrl+Shift+I on windows, Cmd+Opt+I on Mac), go the network tab. Grafana supports up to 26 queries per panel. Cache timeout: (Visible only if available in the data source) Overrides the default cache timeout if your time series store has a query cache. WAF is considering this as SQL injection and hence blocking it. Also can you confirm if any other dashboards impacted with same issue but with different datasource? Connect Grafana to data sources, apps, and more, with Grafana Alerting, Grafana Incident, and Grafana OnCall, Frontend application observability web SDK, Try out and share prebuilt visualizations, Contribute to technical documentation provided by Grafana Labs, Help build the future of open source observability software By clicking Sign up for GitHub, you agree to our terms of service and This information is not built into Grafana yet but can be easily investigated using Browser Dev Tools. As the user zooms out on a visualization, the interval grows, resulting in a more coarse-grained aggregation. is_number takes a number or a series and returns 1 for all real number values and 0 for other values (which are null, Inf+, Inf-, and NaN). I am able to access the datatables in mysql workbench. Any help to arrive at a solution will be greatly appreciated. Grafana sets defaults that are shown in dark gray text. You can configure query frequency and data collection limits in the panels data source options. Connect and share knowledge within a single location that is structured and easy to search. Hi. privacy statement. docparvirelatorios April 2, 2022, 2:52pm #1 I'm having a problem with my dashboard auto-updating. I should mention that, I haven't changed Grafana conf file. Object status:500 statusText:"Internal Server Error" data:Object message:"Query data error" traceID:"00000000000000000000000000000000" config:Object url:"api/ds/query" method:"POST" data:Object queries:Array[1] 0:Object columns:Array[1] datasource:Object filters:Array[0] format:"table" global_query_id:"" hide:false refId:"A" root_selector:"Content" source:"url" type:"json" url:["https://useallcloud.com.br/apicrm/atendimentos/api/health"](https://useallcloud.com.br/apicrm/atendimentos/api/health) url_options:Object datasourceId:2 intervalMs:10000 maxDataPoints:1968 range:Object from:"2022-06-17T05:23:31.846Z" to:"2022-06-17T11:23:31.846Z" raw:Object from:"now-6h" to:"now" from:"1655443411846" to:"1655465011846" requestId:"Q122" retry:0 headers:Object X-Grafana-Org-Id:1 hideFromInspector:false message:"Query error: 500 Internal Server Error". Click the Data source drop-down menu and select a data source. Incorrect line display on graph, Bars don't appear for just one data series, Cannot read property 'toString' of undefined, Create grafana Dashboard from elasticsearch Souce failed, Singlestat gauge doens't like negative values, Only "All" Value Available For Template Variable Selection, Switch grafana from http to https, all grpahs are gone, Wrong calculation of average (per hour) - correct with graphs. For details on a specific data sources unique query language, refer to its documentation. If its the latter, wed expect theyll be back up and running soon. Grafana Labs uses cookies for the normal operation of this website. When I navigate to the Alert rules section and expand my alerts folder, I see that the health status of the first alert is ok, however, the other two alerts have a error status. This page provides information to solve common dashboard problems. Then I have created a plot in a dashboard by copying a successfully tested plot on my Grafana local instance: However, I am not able to see the plot in Grafana Cloud. I have been answered that log files are available at GrafanaLabs\grafana\data. 2 Answers Sorted by: 0 I have found this issue, I had WAF enabled in the entry LB, I have removed and checked that it does work. Copies a query. If you want to let technical users report an error, consider logging it to the console instead. The main use case is so you can resample time series that do not share the same timestamps so math can be performed between them. Data source queries, when used with expressions, are executed by the expression engine. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. In the root directory it is giving this error Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. If the above connection string fails, try update your c# mysql connection string as shown below (without port variable as well): MysqlConn.ConnectionString = "Server=localhost;Database=My_Mysql_Database;Uid=root;Pwd=root;". Thank you for the response. For example, Loki streams data in its live tailing mode. Since I was new to grafana and postgres not able to identify the root cause also. So I strongly suggest you to double check any other local settings. Either for SQL server Authentication or Windows Authentication, I get the error db query error: failed to connect to server - please inspect Grafana server log for details. This information is not built into Grafana yet but can be easily investigated using Browser Dev Tools. Hides a query. Unify your data with Grafana plugins: Datadog, Splunk, MongoDB, and more. Depending on your data source, the query editor might provide auto-completion features, metric names, variable suggestions, or a visual query-building interface. abs returns the absolute value of its argument which can be a number or a series. GRAFANA ERROR - Failed to evaluate queries and expressions: failed to execute conditions: input data must be a wide series but got type long Ask Question Asked 1 year, 5 months ago Modified 1 year, 1 month ago Viewed 6k times 4 If labels are a subset of the other, for example and item in. What would naval warfare look like if Dreadnaughts never came to be? By removing that rule, the SQL query has been run successfully. Min interval: Sets a minimum limit for the automatically calculated interval, which is typically the minimum scrape interval. That folder is there. Was the alert in question migrated from the legacy platform into Unified Alerting, or did you first create it inside the new platform? The data is generally assumed to be labeled time series data. The order of results reflects the order of the queries, so you can often adjust your visual results based on query order. So for example if using a data source that returns multiple series on one frame in the table view, you might notice it looks different when executed with expressions. Have a question about this project? prometheus.<namespace>.svc.cluster.local For example, a query that returns multiple series, where each series is identified by labels or tags. Write a short description about your experience with Grot, our AI Beta. In some of the ways, spacing and the order of parameters in the MySql connection string does matters. Describe the bug Some graphs of grafana is broken, after I upgraded to grafana 8.1.1 and plugin version to 4.2.1. For example, if a request contains two data source queries that are merged by an expression, if NoData is returned by at least one of the data source queries, then the returned result for the entire query is NoData. Removes a query. The rules for the behavior of this union are as follows: The relational and logical operators return 0 for false 1 for true. Unable to setup grafana template with mysql, Adding psql data source to fresh Grafana install, Problem using Grafana with BigQuery datasource, Unable to run Grafana server on local system. When it does this, it restructures data to be either one time series or one number per data frame. An individual expression takes one or more queries or other expressions as input and adds data to the result. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. the port number of mysql interface is correct. Time shift: Overrides the time range for individual panels by shifting its start and end relative to the time picker. Downloads. Find centralized, trusted content and collaborate around the technologies you use most. So, The problem was that I repeated the query for each visual instead of using the query on a single visual and using this data for the other visuals through the dashboard option. You can use Computer search tool to find the folder. Well demo all the highlights of the major release: new and updated visualizations and themes, data source improvements, and Enterprise features. The text was updated successfully, but these errors were encountered: Hi @passarela - Can you confirm if downgrading grafana back to 8.5.5 helps. Thank you! Where is your SQL database - on the same machine as Grafana, or another one What do you see if you expand the one element returned (at the bottom). If you are using GRAFANA on a local device then all files etc must be in the local webserver thefolder. If still reproducible from your side, you can open a ticket with the plugin repo https://github.com/yesoreyeram/grafana-infinity-datasource as this is a community supported plugin. Each data source uses its own query language, and data source plugins each implement a query-building user interface called a query editor. Getting same error while running queries from the explore option next to datasource test. Sum returns the total of all values in the series. If the series has no values then returns NaN. To see all available qualifiers, see our documentation. Grafana does not send hidden queries to the data source. Thank you! For details, refer to Data sources. Usually located at /var/log/grafana/grafana.log on Unix systems or in <grafana_install_dir>/data/log on other platforms and manual installations. So if you have numbers with labels like {host=web01} in $A and another number in $B with the same labels then the operation is performed between those two items within each variable, and the result will share the same labels. Not too sure if that makes any difference. Your Grafana can't open TCP connection - so something is blocking it on the network level (probably Windows firewall). Round returns a rounded integer value. If the variable has spaces in the name, then you can use a brace syntax like ${my variable}. It looks like Zabbix API cannot handle request. If I edit the panel, than the graphs are display, but If I save the panel and refresh the full page that panel is empty aga. Toggles query editor help. Expressions create new data and do not manipulate the data returned by data sources. I have set up three alerts, all pointing to the same Elasticsearch data source. An item with no labels will join to anything. Im a first time Grafana user and want to connect my MySQL database to Grafana. I have set up three alerts, all pointing to the same Elasticsearch data source. What Grafana version and what operating system are you using? I get the following error message in chrome: Has anyone else ran into this problem? For example log(-1) or log($A). For more information about expression operations, refer to About expressions. Powered by Discourse, best viewed with JavaScript enabled. With binary operations, such as $A + $B or $A || $B, the operator is applied in the following ways depending on the type of data: Because expressions work with multiple series or numbers represented by a single variable, binary operations also perform a union (join) between the two variables. Powered by Discourse, best viewed with JavaScript enabled, Grafana/InfluxDB - Network Error: undefined(undefined). In the Grafana documentation, I found that I should be able to query my Prometheus server for all instances delivering monitoring data using the label_values query. I appreciate if you can make the same request in grafana with 3.x plugin version to make sure it's something that works in a different way in the new plugin versions with backend. Grafana queries the data source and visualizes the data. When I hover over the error, the following message pops up : failed to query data: context deadline exceeded. Changes you make here affect only queries made in this panel. I am trying to connect Grafana with MySQL database but am getting the following error. Grafana Labs uses cookies for the normal operation of this website. This function exists because NaN is not equal to NaN. Floor rounds the number down to the nearest integer value. What is the audible level for digital audio dB units? For example is_nan($A). Share Improve this answer Follow answered Dec 9, 2020 at 6:13 Saikat Chakrabortty 2,478 4 22 39 If series is of zero length, the sum will be 0. I added the IP addresses to the Timescale Cloud service configuration as you suggested but I still get the same result. You signed in with another tab or window. Try this: Sorry, an error occurred. I checked then Grafana log file: lvl=eror msg="query error" logger=tsdb.mssql err="Unable to open tcp connection with host 'servername:1433': dial tcp [2a02:908:1391:9e80:c180:xxxx:xxxx:xxxx]:1433: connectex: No connection could be made because the target machine actively refused it." So, Open positions, Check out the open source projects we support Asking for help, clarification, or responding to other answers. Then try accessing the app hosted in the Docker container with the mapped port (e.g.. When functions can take either numbers or series, than the same type as the argument will be returned. the open Internet (not a VPN). bernardodichiara April 20, 2022, 8:52am 4 Hi! an address the server doesnt allow), unless you really are doing this over The string columns become labels and the number column the corresponding value. Please help. 2 Answers Sorted by: 3 Sounds like it cannot find the prometheus service in the cluster. Grafana organizes queries in collapsible query rows. I can suggest few things to debug. @jangaraj. Reduce takes one or more time series returned from a query or an expression and turns each series into a single number. db query error: failed to connect to server - please inspect Grafana server log for details, https://grafana.com/docs/grafana/latest/datasources/mssql/, What its like to be on the Python Steering Council (Ep. Also I am not able to locate the grafana server log in my windows desktop. We recommend that you avoid displaying overly technical error messages to the user. Try using "localhost" or "127.0.0.1" as the host name, Make sure authentication is SQL Server Authentication. Expressions are meant to augment data sources by enabling queries from different data sources to be combined or by providing operations unavailable in a data source. How did this hand from the 2008 WSOP eliminate Scott Montgomery? Hi @lee Min and Max return the smallest or largest value in the series respectively. There may be other possible problems, depending on your log file. My bechamel takes over an hour to thicken, what am I doing wrong. For more information, refer to Inspect request and response data. How do you manage the impact of deep immersion in RPGs on players' real-life? Sometimes it returns the data normally, but most of the time it gives the error: Query data error. For more information, refer to Data sources. This topic was automatically closed after 365 days. For example abs(-1) or abs($A). Please check whether your mysql is running normally, and you need to check whether the port number of your mysql interface is correct. the data source response. Max data points: If the data source supports it, this sets the maximum number of data points for each series returned. Does anyone have an idea what it could be? Ive searched and tried to change the query but this error persists and doesnt give me more information than it might be. There doesnt seem to be a GROUP BY clause there as in the docs linked to earlier. Open positions, Check out the open source projects we support Does the US have a duty to negotiate the release of detained US citizens in the DPRK? Data source queries, when used with expressions, are executed by the expression engine. We have Grafana alert based on AWS Cloudwatch Insight query, but very often the alert fails with the error: The labels of the time series are kept as labels on each outputted reduced number. For more information, refer to Inspect request and response data. I'm a beta, not like one of those pretty fighting fish, but like an early test version. Are you using legacy alerting or Unified Alerting? Likewise, if the user zooms in, the interval decreases, resulting in a more fine-grained aggregation. Grafana supports many types of data sources. With streaming data, Grafana uses the max data points value for the rolling buffer.