Zabbix json preprocessing example. Data cleansing (1:18:40) 2.
Zabbix json preprocessing example. For example, $. JavaScript preprocessing JavaScript preprocessing is done by invoking JavaScript function with a single parameter 'value' and user-provided function body. Preprocessing of item values allows to define and execute data transformation rules for received item values. Data wrangling (1:33:34) III. A segment can be either a simple word like a JSON value name, * or a more complex construct enclosed within square brackets [ ]. These transformations/preprocessing steps are performed by Zabbix server or proxy (if items are monitored by proxy). That’s why we prepared some great examples of how you can use that tool to achieve the same. Data cleansing (1:18:40) 2. The separating dot before bracket segment is optional and can be omitted. This example uses the Custom multiplier preprocessing step to check if the retrieved item value type is numeric. How it works 5 JavaScript preprocessing Overview This section provides details of preprocessing by JavaScript. ['name'] return values of all name properties. This post is likely pretty niche. 4, etc. Data reduction (1:30:21) 4. What is pre-processing? (1:12:11) II. ). In the Preprocessing tab of an item, select the Custom multiplier preprocessing step and specify the following parameter (multiplies the retrieved value by 1): This development should help avoid situations when the prolonged preprocessing of one item holds up others. This can be used for simple as well as dependent items. Overview JSONPath consists of segments separated with dots. For example: Oct 26, 2022 · Extract metrics from structured data with Zabbix preprocessing: Navigate to Configuration → Hosts Find the host where structured data is collected Click on the Items button next to the host Create or open an item collecting structured data For this example, we will transform CSV to JSON Open the Preprocessing tab Select a structured data preprocessing rule If required, provide the necessary Nov 11, 2019 · And that’s what Zabbix provides, from preprocessing simple text to integration with Prometheus exporters in Zabbix 4. The preprocessing step result is the value returned by this function, for example, to perform Fahrenheit to Celsius conversion, enter: ZABBIX BUGS AND ISSUES ZBX-16234 clarify how to reference object in arrays for "JSON Path" preprocessing step Add item preprocessing jsonpath function to extract fragment from json data with a lightweight version of jsonpath (simple subset of functionality). Why do we need preprocessing? (1:16:08) 1. This change adds a new required library for Zabbix server/proxy -libevent_pthreads. . One or more preprocessing steps can be configured for an item. name or $. This feature supports a variety of use cases, such as: discarding unchanged values to optimize database storage. Data editing (1:23:55) 3. Contents I. To find a matching segment ignoring its ancestry (detached segment), it must be prefixed with two dots (. Dec 22, 2022 · A part of my application looks like this example : We focus on car brands and number of cars in a garage Ford 12 Toyota 20 Honda 8 etc Not very real but let's imagine that numbers change every That’s where JavaScript preprocessing comes in. Matched element names can be extracted by adding a tilde (~) suffix to the JSONPath. 2 and CSV to JSON transformation in Zabbix 4. I drafted it after needing to go beyond a simple value lookup inside a JSON block to something more involved, namely evaluating multiple conditions to arrive at a final true/false value. Oct 21, 2020 · Preprocessing is a great tool to make data collection precise and crystal clear. ljwfmwfraoekqopguaivluvzlwnpmsbnsynletkanprgmzypsljc